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m4: grab newer upstream m4 (for code-coverage) 

Grab some newer version of the autotools m4 archive, as we need those to
setup code-coverage.

Remove some unneeded ones.
This commit is contained in:
Dirk-Jan C. Binnema 2020-01-01 12:08:25 +02:00
parent 7cc4a3cde2
commit 8aa433b56b
27 changed files with 1668 additions and 1204 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
m4/Makefile.am
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@ -1,4 +1,4 @@
## Copyright (C) 2008-2017 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
## Copyright (C) 2008-2020 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
@ -16,12 +16,28 @@
include $(top_srcdir)/gtest.mk
EXTRA_DIST = \
ax_cxx_compile_stdcxx.m4 \
EXTRA_DIST= \
ax_ac_append_to_file.m4 \
ax_ac_print_to_file.m4 \
ax_add_am_macro_static.m4 \
ax_am_macros_static.m4 \
ax_append_compile_flags.m4 \
ax_append_flag.m4 \
ax_append_link_flags.m4 \
ax_check_compile_flag.m4 \
ax_check_enable_debug.m4 \
ax_check_gnu_make.m4 \
ax_check_link_flag.m4 \
ax_code_coverage.m4 \
ax_compiler_flags_cflags.m4 \
ax_compiler_flags_cxxflags.m4 \
ax_compiler_flags_gir.m4 \
ax_compiler_flags_ldflags.m4 \
ax_compiler_flags.m4 \
ax_cxx_compile_stdcxx_14.m4 \
ax_cxx_compile_stdcxx.m4 \
ax_file_escapes.m4 \
ax_is_release.m4 \
ax_require_defined.m4 \
ax_valgrind_check.m4 \
guile.m4 \
lib-ld.m4 \
lib-link.m4 \
lib-prefix.m4 \
perlmod.m4
guile-2.2.m4

32
m4/ax_ac_append_to_file.m4 Normal file
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@ -0,0 +1,32 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_ac_append_to_file.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_AC_APPEND_TO_FILE([FILE],[DATA])
#
# DESCRIPTION
#
# Appends the specified data to the specified Autoconf is run. If you want
# to append to a file when configure is run use AX_APPEND_TO_FILE instead.
#
# LICENSE
#
# Copyright (c) 2009 Allan Caffee <allan.caffee@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 10
AC_DEFUN([AX_AC_APPEND_TO_FILE],[
AC_REQUIRE([AX_FILE_ESCAPES])
m4_esyscmd(
AX_FILE_ESCAPES
[
printf "%s" "$2" >> "$1"
])
])

32
m4/ax_ac_print_to_file.m4 Normal file
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@ -0,0 +1,32 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_ac_print_to_file.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_AC_PRINT_TO_FILE([FILE],[DATA])
#
# DESCRIPTION
#
# Writes the specified data to the specified file when Autoconf is run. If
# you want to print to a file when configure is run use AX_PRINT_TO_FILE
# instead.
#
# LICENSE
#
# Copyright (c) 2009 Allan Caffee <allan.caffee@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 10
AC_DEFUN([AX_AC_PRINT_TO_FILE],[
m4_esyscmd(
AC_REQUIRE([AX_FILE_ESCAPES])
[
printf "%s" "$2" > "$1"
])
])

28
m4/ax_add_am_macro_static.m4 Normal file
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@ -0,0 +1,28 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_add_am_macro_static.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_ADD_AM_MACRO_STATIC([RULE])
#
# DESCRIPTION
#
# Adds the specified rule to $AMINCLUDE.
#
# LICENSE
#
# Copyright (c) 2009 Tom Howard <tomhoward@users.sf.net>
# Copyright (c) 2009 Allan Caffee <allan.caffee@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 8
AC_DEFUN([AX_ADD_AM_MACRO_STATIC],[
AC_REQUIRE([AX_AM_MACROS_STATIC])
AX_AC_APPEND_TO_FILE(AMINCLUDE_STATIC,[$1])
])

38
m4/ax_am_macros_static.m4 Normal file
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@ -0,0 +1,38 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_am_macros_static.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_AM_MACROS_STATIC
#
# DESCRIPTION
#
# Adds support for macros that create Automake rules. You must manually
# add the following line
#
# include $(top_srcdir)/aminclude_static.am
#
# to your Makefile.am files.
#
# LICENSE
#
# Copyright (c) 2009 Tom Howard <tomhoward@users.sf.net>
# Copyright (c) 2009 Allan Caffee <allan.caffee@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 11
AC_DEFUN([AMINCLUDE_STATIC],[aminclude_static.am])
AC_DEFUN([AX_AM_MACROS_STATIC],
[
AX_AC_PRINT_TO_FILE(AMINCLUDE_STATIC,[
# ]AMINCLUDE_STATIC[ generated automatically by Autoconf
# from AX_AM_MACROS_STATIC on ]m4_esyscmd([LC_ALL=C date])[
])
])

46
m4/ax_append_compile_flags.m4 Normal file
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@ -0,0 +1,46 @@
# ============================================================================
# https://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
# ============================================================================
#
# SYNOPSIS
#
# AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# For every FLAG1, FLAG2 it is checked whether the compiler works with the
# flag. If it does, the flag is added FLAGS-VARIABLE
#
# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
# CFLAGS) is used. During the check the flag is always added to the
# current language's flags.
#
# If EXTRA-FLAGS is defined, it is added to the current language's default
# flags (e.g. CFLAGS) when the check is done. The check is thus made with
# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# force the compiler to issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: This macro depends on the AX_APPEND_FLAG and
# AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
# AX_APPEND_LINK_FLAGS.
#
# LICENSE
#
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 7
AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
[AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
for flag in $1; do
AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3], [$4])
done
])dnl AX_APPEND_COMPILE_FLAGS

50
m4/ax_append_flag.m4 Normal file
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@ -0,0 +1,50 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
#
# DESCRIPTION
#
# FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
# added in between.
#
# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains
# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly
# FLAG.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 8
AC_DEFUN([AX_APPEND_FLAG],
[dnl
AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
AS_VAR_SET_IF(FLAGS,[
AS_CASE([" AS_VAR_GET(FLAGS) "],
[*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
[
AS_VAR_APPEND(FLAGS,[" $1"])
AC_RUN_LOG([: FLAGS="$FLAGS"])
])
],
[
AS_VAR_SET(FLAGS,[$1])
AC_RUN_LOG([: FLAGS="$FLAGS"])
])
AS_VAR_POPDEF([FLAGS])dnl
])dnl AX_APPEND_FLAG

44
m4/ax_append_link_flags.m4 Normal file
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@ -0,0 +1,44 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# For every FLAG1, FLAG2 it is checked whether the linker works with the
# flag. If it does, the flag is added FLAGS-VARIABLE
#
# If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
# used. During the check the flag is always added to the linker's flags.
#
# If EXTRA-FLAGS is defined, it is added to the linker's default flags
# when the check is done. The check is thus made with the flags: "LDFLAGS
# EXTRA-FLAGS FLAG". This can for example be used to force the linker to
# issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
# Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
#
# LICENSE
#
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 7
AC_DEFUN([AX_APPEND_LINK_FLAGS],
[AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
for flag in $1; do
AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3], [$4])
done
])dnl AX_APPEND_LINK_FLAGS

53
m4/ax_check_compile_flag.m4 Normal file
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@ -0,0 +1,53 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# Check whether the given FLAG works with the current language's compiler
# or gives an error. (Warnings, however, are ignored)
#
# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
# success/failure.
#
# If EXTRA-FLAGS is defined, it is added to the current language's default
# flags (e.g. CFLAGS) when the check is done. The check is thus made with
# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# force the compiler to issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 6
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_check_enable_debug.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_ENABLE_DEBUG([enable by default=yes/info/profile/no], [ENABLE DEBUG VARIABLES ...], [DISABLE DEBUG VARIABLES NDEBUG ...], [IS-RELEASE])
#
# DESCRIPTION
#
# Check for the presence of an --enable-debug option to configure, with
# the specified default value used when the option is not present. Return
# the value in the variable $ax_enable_debug.
#
# Specifying 'yes' adds '-g -O0' to the compilation flags for all
# languages. Specifying 'info' adds '-g' to the compilation flags.
# Specifying 'profile' adds '-g -pg' to the compilation flags and '-pg' to
# the linking flags. Otherwise, nothing is added.
#
# Define the variables listed in the second argument if debug is enabled,
# defaulting to no variables. Defines the variables listed in the third
# argument if debug is disabled, defaulting to NDEBUG. All lists of
# variables should be space-separated.
#
# If debug is not enabled, ensure AC_PROG_* will not add debugging flags.
# Should be invoked prior to any AC_PROG_* compiler checks.
#
# IS-RELEASE can be used to change the default to 'no' when making a
# release. Set IS-RELEASE to 'yes' or 'no' as appropriate. By default, it
# uses the value of $ax_is_release, so if you are using the AX_IS_RELEASE
# macro, there is no need to pass this parameter.
#
# AX_IS_RELEASE([git-directory])
# AX_CHECK_ENABLE_DEBUG()
#
# LICENSE
#
# Copyright (c) 2011 Rhys Ulerich <rhys.ulerich@gmail.com>
# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved.
#serial 9
AC_DEFUN([AX_CHECK_ENABLE_DEBUG],[
AC_BEFORE([$0],[AC_PROG_CC])dnl
AC_BEFORE([$0],[AC_PROG_CXX])dnl
AC_BEFORE([$0],[AC_PROG_F77])dnl
AC_BEFORE([$0],[AC_PROG_FC])dnl
AC_MSG_CHECKING(whether to enable debugging)
ax_enable_debug_default=m4_tolower(m4_normalize(ifelse([$1],,[no],[$1])))
ax_enable_debug_is_release=m4_tolower(m4_normalize(ifelse([$4],,
[$ax_is_release],
[$4])))
# If this is a release, override the default.
AS_IF([test "$ax_enable_debug_is_release" = "yes"],
[ax_enable_debug_default="no"])
m4_define(ax_enable_debug_vars,[m4_normalize(ifelse([$2],,,[$2]))])
m4_define(ax_disable_debug_vars,[m4_normalize(ifelse([$3],,[NDEBUG],[$3]))])
AC_ARG_ENABLE(debug,
[AS_HELP_STRING([--enable-debug=]@<:@yes/info/profile/no@:>@,[compile with debugging])],
[],enable_debug=$ax_enable_debug_default)
# empty mean debug yes
AS_IF([test "x$enable_debug" = "x"],
[enable_debug="yes"])
# case of debug
AS_CASE([$enable_debug],
[yes],[
AC_MSG_RESULT(yes)
CFLAGS="${CFLAGS} -g -O0"
CXXFLAGS="${CXXFLAGS} -g -O0"
FFLAGS="${FFLAGS} -g -O0"
FCFLAGS="${FCFLAGS} -g -O0"
OBJCFLAGS="${OBJCFLAGS} -g -O0"
],
[info],[
AC_MSG_RESULT(info)
CFLAGS="${CFLAGS} -g"
CXXFLAGS="${CXXFLAGS} -g"
FFLAGS="${FFLAGS} -g"
FCFLAGS="${FCFLAGS} -g"
OBJCFLAGS="${OBJCFLAGS} -g"
],
[profile],[
AC_MSG_RESULT(profile)
CFLAGS="${CFLAGS} -g -pg"
CXXFLAGS="${CXXFLAGS} -g -pg"
FFLAGS="${FFLAGS} -g -pg"
FCFLAGS="${FCFLAGS} -g -pg"
OBJCFLAGS="${OBJCFLAGS} -g -pg"
LDFLAGS="${LDFLAGS} -pg"
],
[
AC_MSG_RESULT(no)
dnl Ensure AC_PROG_CC/CXX/F77/FC/OBJC will not enable debug flags
dnl by setting any unset environment flag variables
AS_IF([test "x${CFLAGS+set}" != "xset"],
[CFLAGS=""])
AS_IF([test "x${CXXFLAGS+set}" != "xset"],
[CXXFLAGS=""])
AS_IF([test "x${FFLAGS+set}" != "xset"],
[FFLAGS=""])
AS_IF([test "x${FCFLAGS+set}" != "xset"],
[FCFLAGS=""])
AS_IF([test "x${OBJCFLAGS+set}" != "xset"],
[OBJCFLAGS=""])
])
dnl Define various variables if debugging is disabled.
dnl assert.h is a NOP if NDEBUG is defined, so define it by default.
AS_IF([test "x$enable_debug" = "xyes"],
[m4_map_args_w(ax_enable_debug_vars, [AC_DEFINE(], [,[1],[Define if debugging is enabled])])],
[m4_map_args_w(ax_disable_debug_vars, [AC_DEFINE(], [,[1],[Define if debugging is disabled])])])
ax_enable_debug=$enable_debug
])

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_check_gnu_make.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_GNU_MAKE([run-if-true],[run-if-false])
#
# DESCRIPTION
#
# This macro searches for a GNU version of make. If a match is found:
#
# * The makefile variable `ifGNUmake' is set to the empty string, otherwise
# it is set to "#". This is useful for including a special features in a
# Makefile, which cannot be handled by other versions of make.
# * The makefile variable `ifnGNUmake' is set to #, otherwise
# it is set to the empty string. This is useful for including a special
# features in a Makefile, which can be handled
# by other versions of make or to specify else like clause.
# * The variable `_cv_gnu_make_command` is set to the command to invoke
# GNU make if it exists, the empty string otherwise.
# * The variable `ax_cv_gnu_make_command` is set to the command to invoke
# GNU make by copying `_cv_gnu_make_command`, otherwise it is unset.
# * If GNU Make is found, its version is extracted from the output of
# `make --version` as the last field of a record of space-separated
# columns and saved into the variable `ax_check_gnu_make_version`.
# * Additionally if GNU Make is found, run shell code run-if-true
# else run shell code run-if-false.
#
# Here is an example of its use:
#
# Makefile.in might contain:
#
# # A failsafe way of putting a dependency rule into a makefile
# $(DEPEND):
# $(CC) -MM $(srcdir)/*.c > $(DEPEND)
#
# @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
# @ifGNUmake@ include $(DEPEND)
# @ifGNUmake@ else
# fallback code
# @ifGNUmake@ endif
#
# Then configure.in would normally contain:
#
# AX_CHECK_GNU_MAKE()
# AC_OUTPUT(Makefile)
#
# Then perhaps to cause gnu make to override any other make, we could do
# something like this (note that GNU make always looks for GNUmakefile
# first):
#
# if ! test x$_cv_gnu_make_command = x ; then
# mv Makefile GNUmakefile
# echo .DEFAULT: > Makefile ;
# echo \ $_cv_gnu_make_command \$@ >> Makefile;
# fi
#
# Then, if any (well almost any) other make is called, and GNU make also
# exists, then the other make wraps the GNU make.
#
# LICENSE
#
# Copyright (c) 2008 John Darrington <j.darrington@elvis.murdoch.edu.au>
# Copyright (c) 2015 Enrico M. Crisostomo <enrico.m.crisostomo@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 11
AC_DEFUN([AX_CHECK_GNU_MAKE],dnl
[AC_PROG_AWK
AC_CACHE_CHECK([for GNU make],[_cv_gnu_make_command],[dnl
_cv_gnu_make_command="" ;
dnl Search all the common names for GNU make
for a in "$MAKE" make gmake gnumake ; do
if test -z "$a" ; then continue ; fi ;
if "$a" --version 2> /dev/null | grep GNU 2>&1 > /dev/null ; then
_cv_gnu_make_command=$a ;
AX_CHECK_GNU_MAKE_HEADLINE=$("$a" --version 2> /dev/null | grep "GNU Make")
ax_check_gnu_make_version=$(echo ${AX_CHECK_GNU_MAKE_HEADLINE} | ${AWK} -F " " '{ print $(NF); }')
break ;
fi
done ;])
dnl If there was a GNU version, then set @ifGNUmake@ to the empty string, '#' otherwise
AS_VAR_IF([_cv_gnu_make_command], [""], [AS_VAR_SET([ifGNUmake], ["#"])], [AS_VAR_SET([ifGNUmake], [""])])
AS_VAR_IF([_cv_gnu_make_command], [""], [AS_VAR_SET([ifnGNUmake], [""])], [AS_VAR_SET([ifGNUmake], ["#"])])
AS_VAR_IF([_cv_gnu_make_command], [""], [AS_UNSET(ax_cv_gnu_make_command)], [AS_VAR_SET([ax_cv_gnu_make_command], [${_cv_gnu_make_command}])])
AS_VAR_IF([_cv_gnu_make_command], [""],[$2],[$1])
AC_SUBST([ifGNUmake])
AC_SUBST([ifnGNUmake])
])

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
#
# DESCRIPTION
#
# Check whether the given FLAG works with the linker or gives an error.
# (Warnings, however, are ignored)
#
# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
# success/failure.
#
# If EXTRA-FLAGS is defined, it is added to the linker's default flags
# when the check is done. The check is thus made with the flags: "LDFLAGS
# EXTRA-FLAGS FLAG". This can for example be used to force the linker to
# issue an error when a bad flag is given.
#
# INPUT gives an alternative input source to AC_LINK_IFELSE.
#
# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
# macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 6
AC_DEFUN([AX_CHECK_LINK_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
ax_check_save_flags=$LDFLAGS
LDFLAGS="$LDFLAGS $4 $1"
AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
LDFLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_LINK_FLAGS

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_code_coverage.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CODE_COVERAGE()
#
# DESCRIPTION
#
# Defines CODE_COVERAGE_CPPFLAGS, CODE_COVERAGE_CFLAGS,
# CODE_COVERAGE_CXXFLAGS and CODE_COVERAGE_LIBS which should be included
# in the CPPFLAGS, CFLAGS CXXFLAGS and LIBS/LIBADD variables of every
# build target (program or library) which should be built with code
# coverage support. Also add rules using AX_ADD_AM_MACRO_STATIC; and
# $enable_code_coverage which can be used in subsequent configure output.
# CODE_COVERAGE_ENABLED is defined and substituted, and corresponds to the
# value of the --enable-code-coverage option, which defaults to being
# disabled.
#
# Test also for gcov program and create GCOV variable that could be
# substituted.
#
# Note that all optimization flags in CFLAGS must be disabled when code
# coverage is enabled.
#
# Usage example:
#
# configure.ac:
#
# AX_CODE_COVERAGE
#
# Makefile.am:
#
# include $(top_srcdir)/aminclude_static.am
#
# my_program_LIBS = ... $(CODE_COVERAGE_LIBS) ...
# my_program_CPPFLAGS = ... $(CODE_COVERAGE_CPPFLAGS) ...
# my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ...
# my_program_CXXFLAGS = ... $(CODE_COVERAGE_CXXFLAGS) ...
#
# clean-local: code-coverage-clean
# distclean-local: code-coverage-dist-clean
#
# This results in a "check-code-coverage" rule being added to any
# Makefile.am which do "include $(top_srcdir)/aminclude_static.am"
# (assuming the module has been configured with --enable-code-coverage).
# Running `make check-code-coverage` in that directory will run the
# module's test suite (`make check`) and build a code coverage report
# detailing the code which was touched, then print the URI for the report.
#
# This code was derived from Makefile.decl in GLib, originally licensed
# under LGPLv2.1+.
#
# LICENSE
#
# Copyright (c) 2012, 2016 Philip Withnall
# Copyright (c) 2012 Xan Lopez
# Copyright (c) 2012 Christian Persch
# Copyright (c) 2012 Paolo Borelli
# Copyright (c) 2012 Dan Winship
# Copyright (c) 2015,2018 Bastien ROUCARIES
#
# This library is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or (at
# your option) any later version.
#
# This library is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#serial 33
m4_define(_AX_CODE_COVERAGE_RULES,[
AX_ADD_AM_MACRO_STATIC([
# Code coverage
#
# Optional:
# - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting.
# Multiple directories may be specified, separated by whitespace.
# (Default: \$(top_builddir))
# - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated
# by lcov for code coverage. (Default:
# \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage.info)
# - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage
# reports to be created. (Default:
# \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage)
# - CODE_COVERAGE_BRANCH_COVERAGE: Set to 1 to enforce branch coverage,
# set to 0 to disable it and leave empty to stay with the default.
# (Default: empty)
# - CODE_COVERAGE_LCOV_SHOPTS_DEFAULT: Extra options shared between both lcov
# instances. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE)
# - CODE_COVERAGE_LCOV_SHOPTS: Extra options to shared between both lcov
# instances. (Default: $CODE_COVERAGE_LCOV_SHOPTS_DEFAULT)
# - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov
# - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the
# collecting lcov instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
# - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the collecting lcov
# instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
# - CODE_COVERAGE_LCOV_RMOPTS_DEFAULT: Extra options to pass to the filtering
# lcov instance. (Default: empty)
# - CODE_COVERAGE_LCOV_RMOPTS: Extra options to pass to the filtering lcov
# instance. (Default: $CODE_COVERAGE_LCOV_RMOPTS_DEFAULT)
# - CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT: Extra options to pass to the
# genhtml instance. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE)
# - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml
# instance. (Default: $CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT)
# - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore
#
# The generated report will be titled using the \$(PACKAGE_NAME) and
# \$(PACKAGE_VERSION). In order to add the current git hash to the title,
# use the git-version-gen script, available online.
# Optional variables
# run only on top dir
if CODE_COVERAGE_ENABLED
ifeq (\$(abs_builddir), \$(abs_top_builddir))
CODE_COVERAGE_DIRECTORY ?= \$(top_builddir)
CODE_COVERAGE_OUTPUT_FILE ?= \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage.info
CODE_COVERAGE_OUTPUT_DIRECTORY ?= \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage
CODE_COVERAGE_BRANCH_COVERAGE ?=
CODE_COVERAGE_LCOV_SHOPTS_DEFAULT ?= \$(if \$(CODE_COVERAGE_BRANCH_COVERAGE),\
--rc lcov_branch_coverage=\$(CODE_COVERAGE_BRANCH_COVERAGE))
CODE_COVERAGE_LCOV_SHOPTS ?= \$(CODE_COVERAGE_LCOV_SHOPTS_DEFAULT)
CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool \"\$(GCOV)\"
CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= \$(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
CODE_COVERAGE_LCOV_OPTIONS ?= \$(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
CODE_COVERAGE_LCOV_RMOPTS_DEFAULT ?=
CODE_COVERAGE_LCOV_RMOPTS ?= \$(CODE_COVERAGE_LCOV_RMOPTS_DEFAULT)
CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT ?=\
\$(if \$(CODE_COVERAGE_BRANCH_COVERAGE),\
--rc genhtml_branch_coverage=\$(CODE_COVERAGE_BRANCH_COVERAGE))
CODE_COVERAGE_GENHTML_OPTIONS ?= \$(CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT)
CODE_COVERAGE_IGNORE_PATTERN ?=
GITIGNOREFILES = \$(GITIGNOREFILES) \$(CODE_COVERAGE_OUTPUT_FILE) \$(CODE_COVERAGE_OUTPUT_DIRECTORY)
code_coverage_v_lcov_cap = \$(code_coverage_v_lcov_cap_\$(V))
code_coverage_v_lcov_cap_ = \$(code_coverage_v_lcov_cap_\$(AM_DEFAULT_VERBOSITY))
code_coverage_v_lcov_cap_0 = @echo \" LCOV --capture\" \$(CODE_COVERAGE_OUTPUT_FILE);
code_coverage_v_lcov_ign = \$(code_coverage_v_lcov_ign_\$(V))
code_coverage_v_lcov_ign_ = \$(code_coverage_v_lcov_ign_\$(AM_DEFAULT_VERBOSITY))
code_coverage_v_lcov_ign_0 = @echo \" LCOV --remove /tmp/*\" \$(CODE_COVERAGE_IGNORE_PATTERN);
code_coverage_v_genhtml = \$(code_coverage_v_genhtml_\$(V))
code_coverage_v_genhtml_ = \$(code_coverage_v_genhtml_\$(AM_DEFAULT_VERBOSITY))
code_coverage_v_genhtml_0 = @echo \" GEN \" \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\";
code_coverage_quiet = \$(code_coverage_quiet_\$(V))
code_coverage_quiet_ = \$(code_coverage_quiet_\$(AM_DEFAULT_VERBOSITY))
code_coverage_quiet_0 = --quiet
# sanitizes the test-name: replaces with underscores: dashes and dots
code_coverage_sanitize = \$(subst -,_,\$(subst .,_,\$(1)))
# Use recursive makes in order to ignore errors during check
check-code-coverage:
-\$(AM_V_at)\$(MAKE) \$(AM_MAKEFLAGS) -k check
\$(AM_V_at)\$(MAKE) \$(AM_MAKEFLAGS) code-coverage-capture
# Capture code coverage data
code-coverage-capture: code-coverage-capture-hook
\$(code_coverage_v_lcov_cap)\$(LCOV) \$(code_coverage_quiet) \$(addprefix --directory ,\$(CODE_COVERAGE_DIRECTORY)) --capture --output-file \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" --test-name \"\$(call code_coverage_sanitize,\$(PACKAGE_NAME)-\$(PACKAGE_VERSION))\" --no-checksum --compat-libtool \$(CODE_COVERAGE_LCOV_SHOPTS) \$(CODE_COVERAGE_LCOV_OPTIONS)
\$(code_coverage_v_lcov_ign)\$(LCOV) \$(code_coverage_quiet) \$(addprefix --directory ,\$(CODE_COVERAGE_DIRECTORY)) --remove \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" \"/tmp/*\" \$(CODE_COVERAGE_IGNORE_PATTERN) --output-file \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \$(CODE_COVERAGE_LCOV_SHOPTS) \$(CODE_COVERAGE_LCOV_RMOPTS)
-@rm -f \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\"
\$(code_coverage_v_genhtml)LANG=C \$(GENHTML) \$(code_coverage_quiet) \$(addprefix --prefix ,\$(CODE_COVERAGE_DIRECTORY)) --output-directory \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\" --title \"\$(PACKAGE_NAME)-\$(PACKAGE_VERSION) Code Coverage\" --legend --show-details \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \$(CODE_COVERAGE_GENHTML_OPTIONS)
@echo \"file://\$(abs_builddir)/\$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html\"
code-coverage-clean:
-\$(LCOV) --directory \$(top_builddir) -z
-rm -rf \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\"
-find . \\( -name \"*.gcda\" -o -name \"*.gcno\" -o -name \"*.gcov\" \\) -delete
code-coverage-dist-clean:
A][M_DISTCHECK_CONFIGURE_FLAGS := \$(A][M_DISTCHECK_CONFIGURE_FLAGS) --disable-code-coverage
else # ifneq (\$(abs_builddir), \$(abs_top_builddir))
check-code-coverage:
code-coverage-capture: code-coverage-capture-hook
code-coverage-clean:
code-coverage-dist-clean:
endif # ifeq (\$(abs_builddir), \$(abs_top_builddir))
else #! CODE_COVERAGE_ENABLED
# Use recursive makes in order to ignore errors during check
check-code-coverage:
@echo \"Need to reconfigure with --enable-code-coverage\"
# Capture code coverage data
code-coverage-capture: code-coverage-capture-hook
@echo \"Need to reconfigure with --enable-code-coverage\"
code-coverage-clean:
code-coverage-dist-clean:
endif #CODE_COVERAGE_ENABLED
# Hook rule executed before code-coverage-capture, overridable by the user
code-coverage-capture-hook:
.PHONY: check-code-coverage code-coverage-capture code-coverage-dist-clean code-coverage-clean code-coverage-capture-hook
])
])
AC_DEFUN([_AX_CODE_COVERAGE_ENABLED],[
AX_CHECK_GNU_MAKE([],[AC_MSG_ERROR([not using GNU make that is needed for coverage])])
AC_REQUIRE([AX_ADD_AM_MACRO_STATIC])
# check for gcov
AC_CHECK_TOOL([GCOV],
[$_AX_CODE_COVERAGE_GCOV_PROG_WITH],
[:])
AS_IF([test "X$GCOV" = "X:"],
[AC_MSG_ERROR([gcov is needed to do coverage])])
AC_SUBST([GCOV])
dnl Check if gcc is being used
AS_IF([ test "$GCC" = "no" ], [
AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage])
])
AC_CHECK_PROG([LCOV], [lcov], [lcov])
AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
AS_IF([ test x"$LCOV" = x ], [
AC_MSG_ERROR([To enable code coverage reporting you must have lcov installed])
])
AS_IF([ test x"$GENHTML" = x ], [
AC_MSG_ERROR([Could not find genhtml from the lcov package])
])
dnl Build the code coverage flags
dnl Define CODE_COVERAGE_LDFLAGS for backwards compatibility
CODE_COVERAGE_CPPFLAGS="-DNDEBUG"
CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_CXXFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
CODE_COVERAGE_LIBS="-lgcov"
AC_SUBST([CODE_COVERAGE_CPPFLAGS])
AC_SUBST([CODE_COVERAGE_CFLAGS])
AC_SUBST([CODE_COVERAGE_CXXFLAGS])
AC_SUBST([CODE_COVERAGE_LIBS])
])
AC_DEFUN([AX_CODE_COVERAGE],[
dnl Check for --enable-code-coverage
# allow to override gcov location
AC_ARG_WITH([gcov],
[AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])],
[_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov],
[_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov])
AC_MSG_CHECKING([whether to build with code coverage support])
AC_ARG_ENABLE([code-coverage],
AS_HELP_STRING([--enable-code-coverage],
[Whether to enable code coverage support]),,
enable_code_coverage=no)
AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test "x$enable_code_coverage" = xyes])
AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage])
AC_MSG_RESULT($enable_code_coverage)
AS_IF([ test "x$enable_code_coverage" = xyes ], [
_AX_CODE_COVERAGE_ENABLED
])
_AX_CODE_COVERAGE_RULES
])

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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compiler_flags.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_COMPILER_FLAGS([CFLAGS-VARIABLE], [LDFLAGS-VARIABLE], [IS-RELEASE], [EXTRA-BASE-CFLAGS], [EXTRA-YES-CFLAGS], [UNUSED], [UNUSED], [UNUSED], [EXTRA-BASE-LDFLAGS], [EXTRA-YES-LDFLAGS], [UNUSED], [UNUSED], [UNUSED])
#
# DESCRIPTION
#
# Check for the presence of an --enable-compile-warnings option to
# configure, defaulting to "error" in normal operation, or "yes" if
# IS-RELEASE is equal to "yes". Return the value in the variable
# $ax_enable_compile_warnings.
#
# Depending on the value of --enable-compile-warnings, different compiler
# warnings are checked to see if they work with the current compiler and,
# if so, are appended to CFLAGS-VARIABLE and LDFLAGS-VARIABLE. This
# allows a consistent set of baseline compiler warnings to be used across
# a code base, irrespective of any warnings enabled locally by individual
# developers. By standardising the warnings used by all developers of a
# project, the project can commit to a zero-warnings policy, using -Werror
# to prevent compilation if new warnings are introduced. This makes
# catching bugs which are flagged by warnings a lot easier.
#
# By providing a consistent --enable-compile-warnings argument across all
# projects using this macro, continuous integration systems can easily be
# configured the same for all projects. Automated systems or build
# systems aimed at beginners may want to pass the --disable-Werror
# argument to unconditionally prevent warnings being fatal.
#
# --enable-compile-warnings can take the values:
#
# * no: Base compiler warnings only; not even -Wall.
# * yes: The above, plus a broad range of useful warnings.
# * error: The above, plus -Werror so that all warnings are fatal.
# Use --disable-Werror to override this and disable fatal
# warnings.
#
# The set of base and enabled flags can be augmented using the
# EXTRA-*-CFLAGS and EXTRA-*-LDFLAGS variables, which are tested and
# appended to the output variable if --enable-compile-warnings is not
# "no". Flags should not be disabled using these arguments, as the entire
# point of AX_COMPILER_FLAGS is to enforce a consistent set of useful
# compiler warnings on code, using warnings which have been chosen for low
# false positive rates. If a compiler emits false positives for a
# warning, a #pragma should be used in the code to disable the warning
# locally. See:
#
# https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas
#
# The EXTRA-* variables should only be used to supply extra warning flags,
# and not general purpose compiler flags, as they are controlled by
# configure options such as --disable-Werror.
#
# IS-RELEASE can be used to disable -Werror when making a release, which
# is useful for those hairy moments when you just want to get the release
# done as quickly as possible. Set it to "yes" to disable -Werror. By
# default, it uses the value of $ax_is_release, so if you are using the
# AX_IS_RELEASE macro, there is no need to pass this parameter. For
# example:
#
# AX_IS_RELEASE([git-directory])
# AX_COMPILER_FLAGS()
#
# CFLAGS-VARIABLE defaults to WARN_CFLAGS, and LDFLAGS-VARIABLE defaults
# to WARN_LDFLAGS. Both variables are AC_SUBST-ed by this macro, but must
# be manually added to the CFLAGS and LDFLAGS variables for each target in
# the code base.
#
# If C++ language support is enabled with AC_PROG_CXX, which must occur
# before this macro in configure.ac, warning flags for the C++ compiler
# are AC_SUBST-ed as WARN_CXXFLAGS, and must be manually added to the
# CXXFLAGS variables for each target in the code base. EXTRA-*-CFLAGS can
# be used to augment the base and enabled flags.
#
# Warning flags for g-ir-scanner (from GObject Introspection) are
# AC_SUBST-ed as WARN_SCANNERFLAGS. This variable must be manually added
# to the SCANNERFLAGS variable for each GIR target in the code base. If
# extra g-ir-scanner flags need to be enabled, the AX_COMPILER_FLAGS_GIR
# macro must be invoked manually.
#
# AX_COMPILER_FLAGS may add support for other tools in future, in addition
# to the compiler and linker. No extra EXTRA-* variables will be added
# for those tools, and all extra support will still use the single
# --enable-compile-warnings configure option. For finer grained control
# over the flags for individual tools, use AX_COMPILER_FLAGS_CFLAGS,
# AX_COMPILER_FLAGS_LDFLAGS and AX_COMPILER_FLAGS_* for new tools.
#
# The UNUSED variables date from a previous version of this macro, and are
# automatically appended to the preceding non-UNUSED variable. They should
# be left empty in new uses of the macro.
#
# LICENSE
#
# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
# Copyright (c) 2015 David King <amigadave@amigadave.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 14
# _AX_COMPILER_FLAGS_LANG([LANGNAME])
m4_defun([_AX_COMPILER_FLAGS_LANG],
[m4_ifdef([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [],
[m4_define([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [])dnl
AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_]$1[FLAGS])])dnl
])
AC_DEFUN([AX_COMPILER_FLAGS],[
# C support is enabled by default.
_AX_COMPILER_FLAGS_LANG([C])
# Only enable C++ support if AC_PROG_CXX is called. The redefinition of
# AC_PROG_CXX is so that a fatal error is emitted if this macro is called
# before AC_PROG_CXX, which would otherwise cause no C++ warnings to be
# checked.
AC_PROVIDE_IFELSE([AC_PROG_CXX],
[_AX_COMPILER_FLAGS_LANG([CXX])],
[m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[_AX_COMPILER_FLAGS_LANG([CXX])])])
AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_LDFLAGS])
# Default value for IS-RELEASE is $ax_is_release
ax_compiler_flags_is_release=m4_tolower(m4_normalize(ifelse([$3],,
[$ax_is_release],
[$3])))
AC_ARG_ENABLE([compile-warnings],
AS_HELP_STRING([--enable-compile-warnings=@<:@no/yes/error@:>@],
[Enable compiler warnings and errors]),,
[AS_IF([test "$ax_compiler_flags_is_release" = "yes"],
[enable_compile_warnings="yes"],
[enable_compile_warnings="error"])])
AC_ARG_ENABLE([Werror],
AS_HELP_STRING([--disable-Werror],
[Unconditionally make all compiler warnings non-fatal]),,
[enable_Werror=maybe])
# Return the user's chosen warning level
AS_IF([test "$enable_Werror" = "no" -a \
"$enable_compile_warnings" = "error"],[
enable_compile_warnings="yes"
])
ax_enable_compile_warnings=$enable_compile_warnings
AX_COMPILER_FLAGS_CFLAGS([$1],[$ax_compiler_flags_is_release],
[$4],[$5 $6 $7 $8])
m4_ifdef([_AX_COMPILER_FLAGS_LANG_CXX_enabled],
[AX_COMPILER_FLAGS_CXXFLAGS([WARN_CXXFLAGS],
[$ax_compiler_flags_is_release],
[$4],[$5 $6 $7 $8])])
AX_COMPILER_FLAGS_LDFLAGS([$2],[$ax_compiler_flags_is_release],
[$9],[$10 $11 $12 $13])
AX_COMPILER_FLAGS_GIR([WARN_SCANNERFLAGS],[$ax_compiler_flags_is_release])
])dnl AX_COMPILER_FLAGS

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# =============================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_cflags.html
# =============================================================================
#
# SYNOPSIS
#
# AX_COMPILER_FLAGS_CFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
#
# DESCRIPTION
#
# Add warning flags for the C compiler to VARIABLE, which defaults to
# WARN_CFLAGS. VARIABLE is AC_SUBST-ed by this macro, but must be
# manually added to the CFLAGS variable for each target in the code base.
#
# This macro depends on the environment set up by AX_COMPILER_FLAGS.
# Specifically, it uses the value of $ax_enable_compile_warnings to decide
# which flags to enable.
#
# LICENSE
#
# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
# Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 17
AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[
AC_REQUIRE([AC_PROG_SED])
AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
# Variable names
m4_define([ax_warn_cflags_variable],
[m4_normalize(ifelse([$1],,[WARN_CFLAGS],[$1]))])
AC_LANG_PUSH([C])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#ifndef __cplusplus
#error "no C++"
#endif]])],
[ax_compiler_cxx=yes;],
[ax_compiler_cxx=no;])
# Always pass -Werror=unknown-warning-option to get Clang to fail on bad
# flags, otherwise they are always appended to the warn_cflags variable, and
# Clang warns on them for every compilation unit.
# If this is passed to GCC, it will explode, so the flag must be enabled
# conditionally.
AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
ax_compiler_flags_test="-Werror=unknown-warning-option"
],[
ax_compiler_flags_test=""
])
# Check that -Wno-suggest-attribute=format is supported
AX_CHECK_COMPILE_FLAG([-Wno-suggest-attribute=format],[
ax_compiler_no_suggest_attribute_flags="-Wno-suggest-attribute=format"
],[
ax_compiler_no_suggest_attribute_flags=""
])
# Base flags
AX_APPEND_COMPILE_FLAGS([ dnl
-fno-strict-aliasing dnl
$3 dnl
],ax_warn_cflags_variable,[$ax_compiler_flags_test])
AS_IF([test "$ax_enable_compile_warnings" != "no"],[
if test "$ax_compiler_cxx" = "no" ; then
# C-only flags. Warn in C++
AX_APPEND_COMPILE_FLAGS([ dnl
-Wnested-externs dnl
-Wmissing-prototypes dnl
-Wstrict-prototypes dnl
-Wdeclaration-after-statement dnl
-Wimplicit-function-declaration dnl
-Wold-style-definition dnl
-Wjump-misses-init dnl
],ax_warn_cflags_variable,[$ax_compiler_flags_test])
fi
# "yes" flags
AX_APPEND_COMPILE_FLAGS([ dnl
-Wall dnl
-Wextra dnl
-Wundef dnl
-Wwrite-strings dnl
-Wpointer-arith dnl
-Wmissing-declarations dnl
-Wredundant-decls dnl
-Wno-unused-parameter dnl
-Wno-missing-field-initializers dnl
-Wformat=2 dnl
-Wcast-align dnl
-Wformat-nonliteral dnl
-Wformat-security dnl
-Wsign-compare dnl
-Wstrict-aliasing dnl
-Wshadow dnl
-Winline dnl
-Wpacked dnl
-Wmissing-format-attribute dnl
-Wmissing-noreturn dnl
-Winit-self dnl
-Wredundant-decls dnl
-Wmissing-include-dirs dnl
-Wunused-but-set-variable dnl
-Warray-bounds dnl
-Wreturn-type dnl
-Wswitch-enum dnl
-Wswitch-default dnl
-Wduplicated-cond dnl
-Wduplicated-branches dnl
-Wlogical-op dnl
-Wrestrict dnl
-Wnull-dereference dnl
-Wdouble-promotion dnl
$4 dnl
$5 dnl
$6 dnl
$7 dnl
],ax_warn_cflags_variable,[$ax_compiler_flags_test])
])
AS_IF([test "$ax_enable_compile_warnings" = "error"],[
# "error" flags; -Werror has to be appended unconditionally because
# it's not possible to test for
#
# suggest-attribute=format is disabled because it gives too many false
# positives
AX_APPEND_FLAG([-Werror],ax_warn_cflags_variable)
AX_APPEND_COMPILE_FLAGS([ dnl
[$ax_compiler_no_suggest_attribute_flags] dnl
],ax_warn_cflags_variable,[$ax_compiler_flags_test])
])
# In the flags below, when disabling specific flags, always add *both*
# -Wno-foo and -Wno-error=foo. This fixes the situation where (for example)
# we enable -Werror, disable a flag, and a build bot passes CFLAGS=-Wall,
# which effectively turns that flag back on again as an error.
for flag in $ax_warn_cflags_variable; do
AS_CASE([$flag],
[-Wno-*=*],[],
[-Wno-*],[
AX_APPEND_COMPILE_FLAGS([-Wno-error=$(AS_ECHO([$flag]) | $SED 's/^-Wno-//')],
ax_warn_cflags_variable,
[$ax_compiler_flags_test])
])
done
AC_LANG_POP([C])
# Substitute the variables
AC_SUBST(ax_warn_cflags_variable)
])dnl AX_COMPILER_FLAGS

136
m4/ax_compiler_flags_cxxflags.m4 Normal file
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@ -0,0 +1,136 @@
# ===============================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_cxxflags.html
# ===============================================================================
#
# SYNOPSIS
#
# AX_COMPILER_FLAGS_CXXFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
#
# DESCRIPTION
#
# Add warning flags for the C++ compiler to VARIABLE, which defaults to
# WARN_CXXFLAGS. VARIABLE is AC_SUBST-ed by this macro, but must be
# manually added to the CXXFLAGS variable for each target in the code
# base.
#
# This macro depends on the environment set up by AX_COMPILER_FLAGS.
# Specifically, it uses the value of $ax_enable_compile_warnings to decide
# which flags to enable.
#
# LICENSE
#
# Copyright (c) 2015 David King <amigadave@amigadave.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 10
AC_DEFUN([AX_COMPILER_FLAGS_CXXFLAGS],[
AC_REQUIRE([AC_PROG_SED])
AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
# Variable names
m4_define([ax_warn_cxxflags_variable],
[m4_normalize(ifelse([$1],,[WARN_CXXFLAGS],[$1]))])
AC_LANG_PUSH([C++])
# Always pass -Werror=unknown-warning-option to get Clang to fail on bad
# flags, otherwise they are always appended to the warn_cxxflags variable,
# and Clang warns on them for every compilation unit.
# If this is passed to GCC, it will explode, so the flag must be enabled
# conditionally.
AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
ax_compiler_flags_test="-Werror=unknown-warning-option"
],[
ax_compiler_flags_test=""
])
# Check that -Wno-suggest-attribute=format is supported
AX_CHECK_COMPILE_FLAG([-Wno-suggest-attribute=format],[
ax_compiler_no_suggest_attribute_flags="-Wno-suggest-attribute=format"
],[
ax_compiler_no_suggest_attribute_flags=""
])
# Base flags
AX_APPEND_COMPILE_FLAGS([ dnl
-fno-strict-aliasing dnl
$3 dnl
],ax_warn_cxxflags_variable,[$ax_compiler_flags_test])
AS_IF([test "$ax_enable_compile_warnings" != "no"],[
# "yes" flags
AX_APPEND_COMPILE_FLAGS([ dnl
-Wall dnl
-Wextra dnl
-Wundef dnl
-Wwrite-strings dnl
-Wpointer-arith dnl
-Wmissing-declarations dnl
-Wredundant-decls dnl
-Wno-unused-parameter dnl
-Wno-missing-field-initializers dnl
-Wformat=2 dnl
-Wcast-align dnl
-Wformat-nonliteral dnl
-Wformat-security dnl
-Wsign-compare dnl
-Wstrict-aliasing dnl
-Wshadow dnl
-Winline dnl
-Wpacked dnl
-Wmissing-format-attribute dnl
-Wmissing-noreturn dnl
-Winit-self dnl
-Wredundant-decls dnl
-Wmissing-include-dirs dnl
-Wunused-but-set-variable dnl
-Warray-bounds dnl
-Wreturn-type dnl
-Wno-overloaded-virtual dnl
-Wswitch-enum dnl
-Wswitch-default dnl
$4 dnl
$5 dnl
$6 dnl
$7 dnl
],ax_warn_cxxflags_variable,[$ax_compiler_flags_test])
])
AS_IF([test "$ax_enable_compile_warnings" = "error"],[
# "error" flags; -Werror has to be appended unconditionally because
# it's not possible to test for
#
# suggest-attribute=format is disabled because it gives too many false
# positives
AX_APPEND_FLAG([-Werror],ax_warn_cxxflags_variable)
AX_APPEND_COMPILE_FLAGS([ dnl
[$ax_compiler_no_suggest_attribute_flags] dnl
],ax_warn_cxxflags_variable,[$ax_compiler_flags_test])
])
# In the flags below, when disabling specific flags, always add *both*
# -Wno-foo and -Wno-error=foo. This fixes the situation where (for example)
# we enable -Werror, disable a flag, and a build bot passes CXXFLAGS=-Wall,
# which effectively turns that flag back on again as an error.
for flag in $ax_warn_cxxflags_variable; do
AS_CASE([$flag],
[-Wno-*=*],[],
[-Wno-*],[
AX_APPEND_COMPILE_FLAGS([-Wno-error=$(AS_ECHO([$flag]) | $SED 's/^-Wno-//')],
ax_warn_cxxflags_variable,
[$ax_compiler_flags_test])
])
done
AC_LANG_POP([C++])
# Substitute the variables
AC_SUBST(ax_warn_cxxflags_variable)
])dnl AX_COMPILER_FLAGS_CXXFLAGS

60
m4/ax_compiler_flags_gir.m4 Normal file
View File

@ -0,0 +1,60 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_gir.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_COMPILER_FLAGS_GIR([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
#
# DESCRIPTION
#
# Add warning flags for the g-ir-scanner (from GObject Introspection) to
# VARIABLE, which defaults to WARN_SCANNERFLAGS. VARIABLE is AC_SUBST-ed
# by this macro, but must be manually added to the SCANNERFLAGS variable
# for each GIR target in the code base.
#
# This macro depends on the environment set up by AX_COMPILER_FLAGS.
# Specifically, it uses the value of $ax_enable_compile_warnings to decide
# which flags to enable.
#
# LICENSE
#
# Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 6
AC_DEFUN([AX_COMPILER_FLAGS_GIR],[
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
# Variable names
m4_define([ax_warn_scannerflags_variable],
[m4_normalize(ifelse([$1],,[WARN_SCANNERFLAGS],[$1]))])
# Base flags
AX_APPEND_FLAG([$3],ax_warn_scannerflags_variable)
AS_IF([test "$ax_enable_compile_warnings" != "no"],[
# "yes" flags
AX_APPEND_FLAG([ dnl
--warn-all dnl
$4 dnl
$5 dnl
$6 dnl
$7 dnl
],ax_warn_scannerflags_variable)
])
AS_IF([test "$ax_enable_compile_warnings" = "error"],[
# "error" flags
AX_APPEND_FLAG([ dnl
--warn-error dnl
],ax_warn_scannerflags_variable)
])
# Substitute the variables
AC_SUBST(ax_warn_scannerflags_variable)
])dnl AX_COMPILER_FLAGS

111
m4/ax_compiler_flags_ldflags.m4 Normal file
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@ -0,0 +1,111 @@
# ==============================================================================
# https://www.gnu.org/software/autoconf-archive/ax_compiler_flags_ldflags.html
# ==============================================================================
#
# SYNOPSIS
#
# AX_COMPILER_FLAGS_LDFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
#
# DESCRIPTION
#
# Add warning flags for the linker to VARIABLE, which defaults to
# WARN_LDFLAGS. VARIABLE is AC_SUBST-ed by this macro, but must be
# manually added to the LDFLAGS variable for each target in the code base.
#
# This macro depends on the environment set up by AX_COMPILER_FLAGS.
# Specifically, it uses the value of $ax_enable_compile_warnings to decide
# which flags to enable.
#
# LICENSE
#
# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
# Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 9
AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[
AX_REQUIRE_DEFINED([AX_APPEND_LINK_FLAGS])
AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
# Variable names
m4_define([ax_warn_ldflags_variable],
[m4_normalize(ifelse([$1],,[WARN_LDFLAGS],[$1]))])
# Always pass -Werror=unknown-warning-option to get Clang to fail on bad
# flags, otherwise they are always appended to the warn_ldflags variable,
# and Clang warns on them for every compilation unit.
# If this is passed to GCC, it will explode, so the flag must be enabled
# conditionally.
AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
ax_compiler_flags_test="-Werror=unknown-warning-option"
],[
ax_compiler_flags_test=""
])
AX_CHECK_LINK_FLAG([-Wl,--as-needed], [
AX_APPEND_LINK_FLAGS([-Wl,--as-needed],
[AM_LDFLAGS],[$ax_compiler_flags_test])
])
AX_CHECK_LINK_FLAG([-Wl,-z,relro], [
AX_APPEND_LINK_FLAGS([-Wl,-z,relro],
[AM_LDFLAGS],[$ax_compiler_flags_test])
])
AX_CHECK_LINK_FLAG([-Wl,-z,now], [
AX_APPEND_LINK_FLAGS([-Wl,-z,now],
[AM_LDFLAGS],[$ax_compiler_flags_test])
])
AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [
AX_APPEND_LINK_FLAGS([-Wl,-z,noexecstack],
[AM_LDFLAGS],[$ax_compiler_flags_test])
])
# textonly, retpolineplt not yet
# macOS and cygwin linker do not have --as-needed
AX_CHECK_LINK_FLAG([-Wl,--no-as-needed], [
ax_compiler_flags_as_needed_option="-Wl,--no-as-needed"
], [
ax_compiler_flags_as_needed_option=""
])
# macOS linker speaks with a different accent
ax_compiler_flags_fatal_warnings_option=""
AX_CHECK_LINK_FLAG([-Wl,--fatal-warnings], [
ax_compiler_flags_fatal_warnings_option="-Wl,--fatal-warnings"
])
AX_CHECK_LINK_FLAG([-Wl,-fatal_warnings], [
ax_compiler_flags_fatal_warnings_option="-Wl,-fatal_warnings"
])
# Base flags
AX_APPEND_LINK_FLAGS([ dnl
$ax_compiler_flags_as_needed_option dnl
$3 dnl
],ax_warn_ldflags_variable,[$ax_compiler_flags_test])
AS_IF([test "$ax_enable_compile_warnings" != "no"],[
# "yes" flags
AX_APPEND_LINK_FLAGS([$4 $5 $6 $7],
ax_warn_ldflags_variable,
[$ax_compiler_flags_test])
])
AS_IF([test "$ax_enable_compile_warnings" = "error"],[
# "error" flags; -Werror has to be appended unconditionally because
# it's not possible to test for
#
# suggest-attribute=format is disabled because it gives too many false
# positives
AX_APPEND_LINK_FLAGS([ dnl
$ax_compiler_flags_fatal_warnings_option dnl
],ax_warn_ldflags_variable,[$ax_compiler_flags_test])
])
# Substitute the variables
AC_SUBST(ax_warn_ldflags_variable)
])dnl AX_COMPILER_FLAGS

42
m4/ax_cxx_compile_stdcxx.m4
View File

@ -33,19 +33,18 @@
# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
# Copyright (c) 2015 Paul Norman <penorman@mac.com>
# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
# Copyright (c) 2016 Krzesimir Nowak <qdlacz@gmail.com>
# Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 7
#serial 10
dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
dnl (serial version number 13).
AX_REQUIRE_DEFINED([AC_MSG_WARN])
AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
[$1], [14], [ax_cxx_compile_alternatives="14 1y"],
@ -61,14 +60,6 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
[m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
AC_LANG_PUSH([C++])dnl
ac_success=no
AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
ax_cv_cxx_compile_cxx$1,
[AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[ax_cv_cxx_compile_cxx$1=yes],
[ax_cv_cxx_compile_cxx$1=no])])
if test x$ax_cv_cxx_compile_cxx$1 = xyes; then
ac_success=yes
fi
m4_if([$2], [noext], [], [dnl
if test x$ac_success = xno; then
@ -139,7 +130,6 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
[define if the compiler supports basic C++$1 syntax])
fi
AC_SUBST(HAVE_CXX$1)
m4_if([$1], [17], [AC_MSG_WARN([C++17 is not yet standardized, so the checks may change in incompatible ways anytime])])
])
@ -587,20 +577,12 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
#error "This is not a C++ compiler"
#elif __cplusplus <= 201402L
#elif __cplusplus < 201703L
#error "This is not a C++17 compiler"
#else
#if defined(__clang__)
#define REALLY_CLANG
#else
#if defined(__GNUC__)
#define REALLY_GCC
#endif
#endif
#include <initializer_list>
#include <utility>
#include <type_traits>
@ -608,16 +590,12 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
namespace cxx17
{
#if !defined(REALLY_CLANG)
namespace test_constexpr_lambdas
{
// TODO: test it with clang++ from git
constexpr int foo = [](){return 42;}();
}
#endif // !defined(REALLY_CLANG)
namespace test::nested_namespace::definitions
{
@ -852,12 +830,9 @@ namespace cxx17
}
#if !defined(REALLY_CLANG)
namespace test_template_argument_deduction_for_class_templates
{
// TODO: test it with clang++ from git
template <typename T1, typename T2>
struct pair
{
@ -876,7 +851,6 @@ namespace cxx17
}
}
#endif // !defined(REALLY_CLANG)
namespace test_non_type_auto_template_parameters
{
@ -890,12 +864,9 @@ namespace cxx17
}
#if !defined(REALLY_CLANG)
namespace test_structured_bindings
{
// TODO: test it with clang++ from git
int arr[2] = { 1, 2 };
std::pair<int, int> pr = { 1, 2 };
@ -927,14 +898,10 @@ namespace cxx17
const auto [ x3, y3 ] = f3();
}
#endif // !defined(REALLY_CLANG)
#if !defined(REALLY_CLANG)
namespace test_exception_spec_type_system
{
// TODO: test it with clang++ from git
struct Good {};
struct Bad {};
@ -952,7 +919,6 @@ namespace cxx17
static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
}
#endif // !defined(REALLY_CLANG)
namespace test_inline_variables
{
@ -977,6 +943,6 @@ namespace cxx17
} // namespace cxx17
#endif // __cplusplus <= 201402L
#endif // __cplusplus < 201703L
]])

30
m4/ax_file_escapes.m4 Normal file
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@ -0,0 +1,30 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_file_escapes.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_FILE_ESCAPES
#
# DESCRIPTION
#
# Writes the specified data to the specified file.
#
# LICENSE
#
# Copyright (c) 2008 Tom Howard <tomhoward@users.sf.net>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 8
AC_DEFUN([AX_FILE_ESCAPES],[
AX_DOLLAR="\$"
AX_SRB="\\135"
AX_SLB="\\133"
AX_BS="\\\\"
AX_DQ="\""
])

80
m4/ax_is_release.m4 Normal file
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@ -0,0 +1,80 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_is_release.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_IS_RELEASE(POLICY)
#
# DESCRIPTION
#
# Determine whether the code is being configured as a release, or from
# git. Set the ax_is_release variable to 'yes' or 'no'.
#
# If building a release version, it is recommended that the configure
# script disable compiler errors and debug features, by conditionalising
# them on the ax_is_release variable. If building from git, these
# features should be enabled.
#
# The POLICY parameter specifies how ax_is_release is determined. It can
# take the following values:
#
# * git-directory: ax_is_release will be 'no' if a '.git' directory exists
# * minor-version: ax_is_release will be 'no' if the minor version number
# in $PACKAGE_VERSION is odd; this assumes
# $PACKAGE_VERSION follows the 'major.minor.micro' scheme
# * micro-version: ax_is_release will be 'no' if the micro version number
# in $PACKAGE_VERSION is odd; this assumes
# $PACKAGE_VERSION follows the 'major.minor.micro' scheme
# * dash-version: ax_is_release will be 'no' if there is a dash '-'
# in $PACKAGE_VERSION, for example 1.2-pre3, 1.2.42-a8b9
# or 2.0-dirty (in particular this is suitable for use
# with git-version-gen)
# * always: ax_is_release will always be 'yes'
# * never: ax_is_release will always be 'no'
#
# Other policies may be added in future.
#
# LICENSE
#
# Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk>
# Copyright (c) 2016 Collabora Ltd.
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved.
#serial 7
AC_DEFUN([AX_IS_RELEASE],[
AC_BEFORE([AC_INIT],[$0])
m4_case([$1],
[git-directory],[
# $is_release = (.git directory does not exist)
AS_IF([test -d ${srcdir}/.git],[ax_is_release=no],[ax_is_release=yes])
],
[minor-version],[
# $is_release = ($minor_version is even)
minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'`
AS_IF([test "$(( $minor_version % 2 ))" -ne 0],
[ax_is_release=no],[ax_is_release=yes])
],
[micro-version],[
# $is_release = ($micro_version is even)
micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'`
AS_IF([test "$(( $micro_version % 2 ))" -ne 0],
[ax_is_release=no],[ax_is_release=yes])
],
[dash-version],[
# $is_release = ($PACKAGE_VERSION has a dash)
AS_CASE([$PACKAGE_VERSION],
[*-*], [ax_is_release=no],
[*], [ax_is_release=yes])
],
[always],[ax_is_release=yes],
[never],[ax_is_release=no],
[
AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version, micro-version, dash-version, always, never.])
])
])

37
m4/ax_require_defined.m4 Normal file
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@ -0,0 +1,37 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_REQUIRE_DEFINED(MACRO)
#
# DESCRIPTION
#
# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
# been defined and thus are available for use. This avoids random issues
# where a macro isn't expanded. Instead the configure script emits a
# non-fatal:
#
# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
#
# It's like AC_REQUIRE except it doesn't expand the required macro.
#
# Here's an example:
#
# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
#
# LICENSE
#
# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 2
AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
])dnl AX_REQUIRE_DEFINED

4
m4/guile.m4 → m4/guile-2.2.m4
View File

@ -305,10 +305,6 @@ AC_DEFUN([GUILE_PROGS],
else
AC_PATH_PROG(GUILE_TOOLS,[guile-tools$_guile_suffix])
fi
AC_PATH_PROG(GUILE_SNARF,[guile-snarf$_guile_suffix])
AC_SUBST(GUILE_SNARF)
AC_SUBST(GUILE_TOOLS)
])

119
m4/lib-ld.m4
View File

@ -1,119 +0,0 @@
# lib-ld.m4 serial 6
dnl Copyright (C) 1996-2003, 2009-2017 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Subroutines of libtool.m4,
dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
dnl collision with libtool.m4.
dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no.
AC_DEFUN([AC_LIB_PROG_LD_GNU],
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld],
[# I'd rather use --version here, but apparently some GNU lds only accept -v.
case `$LD -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
acl_cv_prog_gnu_ld=yes
;;
*)
acl_cv_prog_gnu_ld=no
;;
esac])
with_gnu_ld=$acl_cv_prog_gnu_ld
])
dnl From libtool-2.4. Sets the variable LD.
AC_DEFUN([AC_LIB_PROG_LD],
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_ARG_WITH([gnu-ld],
[AS_HELP_STRING([--with-gnu-ld],
[assume the C compiler uses GNU ld [default=no]])],
[test "$withval" = no || with_gnu_ld=yes],
[with_gnu_ld=no])dnl
# Prepare PATH_SEPARATOR.
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
# Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
# contains only /bin. Note that ksh looks also at the FPATH variable,
# so we have to set that as well for the test.
PATH_SEPARATOR=:
(PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
&& { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
|| PATH_SEPARATOR=';'
}
fi
ac_prog=ld
if test "$GCC" = yes; then
# Check if gcc -print-prog-name=ld gives a path.
AC_MSG_CHECKING([for ld used by $CC])
case $host in
*-*-mingw*)
# gcc leaves a trailing carriage return which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
esac
case $ac_prog in
# Accept absolute paths.
[[\\/]]* | ?:[[\\/]]*)
re_direlt='/[[^/]][[^/]]*/\.\./'
# Canonicalize the pathname of ld
ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'`
while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do
ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
done
test -z "$LD" && LD="$ac_prog"
;;
"")
# If it fails, then pretend we aren't using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
elif test "$with_gnu_ld" = yes; then
AC_MSG_CHECKING([for GNU ld])
else
AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL([acl_cv_path_LD],
[if test -z "$LD"; then
acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
IFS="$acl_save_ifs"
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
acl_cv_path_LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
test "$with_gnu_ld" != no && break
;;
*)
test "$with_gnu_ld" != yes && break
;;
esac
fi
done
IFS="$acl_save_ifs"
else
acl_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$acl_cv_path_LD"
if test -n "$LD"; then
AC_MSG_RESULT([$LD])
else
AC_MSG_RESULT([no])
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_LIB_PROG_LD_GNU
])

777
m4/lib-link.m4
View File

@ -1,777 +0,0 @@
# lib-link.m4 serial 26 (gettext-0.18.2)
dnl Copyright (C) 2001-2017 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
AC_PREREQ([2.54])
dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and
dnl augments the CPPFLAGS variable.
dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname
dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
AC_DEFUN([AC_LIB_LINKFLAGS],
[
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
AC_REQUIRE([AC_LIB_RPATH])
pushdef([Name],[m4_translit([$1],[./+-], [____])])
pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
AC_LIB_LINKFLAGS_BODY([$1], [$2])
ac_cv_lib[]Name[]_libs="$LIB[]NAME"
ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME"
ac_cv_lib[]Name[]_cppflags="$INC[]NAME"
ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX"
])
LIB[]NAME="$ac_cv_lib[]Name[]_libs"
LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs"
INC[]NAME="$ac_cv_lib[]Name[]_cppflags"
LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix"
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
AC_SUBST([LIB]NAME)
AC_SUBST([LTLIB]NAME)
AC_SUBST([LIB]NAME[_PREFIX])
dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the
dnl results of this search when this library appears as a dependency.
HAVE_LIB[]NAME=yes
popdef([NAME])
popdef([Name])
])
dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode, [missing-message])
dnl searches for libname and the libraries corresponding to explicit and
dnl implicit dependencies, together with the specified include files and
dnl the ability to compile and link the specified testcode. The missing-message
dnl defaults to 'no' and may contain additional hints for the user.
dnl If found, it sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME}
dnl and LTLIB${NAME} variables and augments the CPPFLAGS variable, and
dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs
dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty.
dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname
dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
[
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
AC_REQUIRE([AC_LIB_RPATH])
pushdef([Name],[m4_translit([$1],[./+-], [____])])
pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
dnl accordingly.
AC_LIB_LINKFLAGS_BODY([$1], [$2])
dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
dnl because if the user has installed lib[]Name and not disabled its use
dnl via --without-lib[]Name-prefix, he wants to use it.
ac_save_CPPFLAGS="$CPPFLAGS"
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
ac_save_LIBS="$LIBS"
dnl If $LIB[]NAME contains some -l options, add it to the end of LIBS,
dnl because these -l options might require -L options that are present in
dnl LIBS. -l options benefit only from the -L options listed before it.
dnl Otherwise, add it to the front of LIBS, because it may be a static
dnl library that depends on another static library that is present in LIBS.
dnl Static libraries benefit only from the static libraries listed after
dnl it.
case " $LIB[]NAME" in
*" -l"*) LIBS="$LIBS $LIB[]NAME" ;;
*) LIBS="$LIB[]NAME $LIBS" ;;
esac
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[$3]], [[$4]])],
[ac_cv_lib[]Name=yes],
[ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])'])
LIBS="$ac_save_LIBS"
])
if test "$ac_cv_lib[]Name" = yes; then
HAVE_LIB[]NAME=yes
AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the lib][$1 library.])
AC_MSG_CHECKING([how to link with lib[]$1])
AC_MSG_RESULT([$LIB[]NAME])
else
HAVE_LIB[]NAME=no
dnl If $LIB[]NAME didn't lead to a usable library, we don't need
dnl $INC[]NAME either.
CPPFLAGS="$ac_save_CPPFLAGS"
LIB[]NAME=
LTLIB[]NAME=
LIB[]NAME[]_PREFIX=
fi
AC_SUBST([HAVE_LIB]NAME)
AC_SUBST([LIB]NAME)
AC_SUBST([LTLIB]NAME)
AC_SUBST([LIB]NAME[_PREFIX])
popdef([NAME])
popdef([Name])
])
dnl Determine the platform dependent parameters needed to use rpath:
dnl acl_libext,
dnl acl_shlibext,
dnl acl_libname_spec,
dnl acl_library_names_spec,
dnl acl_hardcode_libdir_flag_spec,
dnl acl_hardcode_libdir_separator,
dnl acl_hardcode_direct,
dnl acl_hardcode_minus_L.
AC_DEFUN([AC_LIB_RPATH],
[
dnl Tell automake >= 1.10 to complain if config.rpath is missing.
m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])])
AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS
AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld
AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host
AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [
CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
. ./conftest.sh
rm -f ./conftest.sh
acl_cv_rpath=done
])
wl="$acl_cv_wl"
acl_libext="$acl_cv_libext"
acl_shlibext="$acl_cv_shlibext"
acl_libname_spec="$acl_cv_libname_spec"
acl_library_names_spec="$acl_cv_library_names_spec"
acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
acl_hardcode_direct="$acl_cv_hardcode_direct"
acl_hardcode_minus_L="$acl_cv_hardcode_minus_L"
dnl Determine whether the user wants rpath handling at all.
AC_ARG_ENABLE([rpath],
[ --disable-rpath do not hardcode runtime library paths],
:, enable_rpath=yes)
])
dnl AC_LIB_FROMPACKAGE(name, package)
dnl declares that libname comes from the given package. The configure file
dnl will then not have a --with-libname-prefix option but a
dnl --with-package-prefix option. Several libraries can come from the same
dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar
dnl macro call that searches for libname.
AC_DEFUN([AC_LIB_FROMPACKAGE],
[
pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
define([acl_frompackage_]NAME, [$2])
popdef([NAME])
pushdef([PACK],[$2])
pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
define([acl_libsinpackage_]PACKUP,
m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1])
popdef([PACKUP])
popdef([PACK])
])
dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables.
dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found
dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
[
AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])])
pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])])
dnl Autoconf >= 2.61 supports dots in --with options.
pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[m4_translit(PACK,[.],[_])],PACK)])
dnl By default, look in $includedir and $libdir.
use_additional=yes
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
AC_ARG_WITH(P_A_C_K[-prefix],
[[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib
--without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]],
[
if test "X$withval" = "Xno"; then
use_additional=no
else
if test "X$withval" = "X"; then
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
else
additional_includedir="$withval/include"
additional_libdir="$withval/$acl_libdirstem"
if test "$acl_libdirstem2" != "$acl_libdirstem" \
&& ! test -d "$withval/$acl_libdirstem"; then
additional_libdir="$withval/$acl_libdirstem2"
fi
fi
fi
])
dnl Search the library and its dependencies in $additional_libdir and
dnl $LDFLAGS. Using breadth-first-seach.
LIB[]NAME=
LTLIB[]NAME=
INC[]NAME=
LIB[]NAME[]_PREFIX=
dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been
dnl computed. So it has to be reset here.
HAVE_LIB[]NAME=
rpathdirs=
ltrpathdirs=
names_already_handled=
names_next_round='$1 $2'
while test -n "$names_next_round"; do
names_this_round="$names_next_round"
names_next_round=
for name in $names_this_round; do
already_handled=
for n in $names_already_handled; do
if test "$n" = "$name"; then
already_handled=yes
break
fi
done
if test -z "$already_handled"; then
names_already_handled="$names_already_handled $name"
dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
dnl or AC_LIB_HAVE_LINKFLAGS call.
uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'`
eval value=\"\$HAVE_LIB$uppername\"
if test -n "$value"; then
if test "$value" = yes; then
eval value=\"\$LIB$uppername\"
test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
eval value=\"\$LTLIB$uppername\"
test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
else
dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
dnl that this library doesn't exist. So just drop it.
:
fi
else
dnl Search the library lib$name in $additional_libdir and $LDFLAGS
dnl and the already constructed $LIBNAME/$LTLIBNAME.
found_dir=
found_la=
found_so=
found_a=
eval libname=\"$acl_libname_spec\" # typically: libname=lib$name
if test -n "$acl_shlibext"; then
shrext=".$acl_shlibext" # typically: shrext=.so
else
shrext=
fi
if test $use_additional = yes; then
dir="$additional_libdir"
dnl The same code as in the loop below:
dnl First look for a shared library.
if test -n "$acl_shlibext"; then
if test -f "$dir/$libname$shrext"; then
found_dir="$dir"
found_so="$dir/$libname$shrext"
else
if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
ver=`(cd "$dir" && \
for f in "$libname$shrext".*; do echo "$f"; done \
| sed -e "s,^$libname$shrext\\\\.,," \
| sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
| sed 1q ) 2>/dev/null`
if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
found_dir="$dir"
found_so="$dir/$libname$shrext.$ver"
fi
else
eval library_names=\"$acl_library_names_spec\"
for f in $library_names; do
if test -f "$dir/$f"; then
found_dir="$dir"
found_so="$dir/$f"
break
fi
done
fi
fi
fi
dnl Then look for a static library.
if test "X$found_dir" = "X"; then
if test -f "$dir/$libname.$acl_libext"; then
found_dir="$dir"
found_a="$dir/$libname.$acl_libext"
fi
fi
if test "X$found_dir" != "X"; then
if test -f "$dir/$libname.la"; then
found_la="$dir/$libname.la"
fi
fi
fi
if test "X$found_dir" = "X"; then
for x in $LDFLAGS $LTLIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
case "$x" in
-L*)
dir=`echo "X$x" | sed -e 's/^X-L//'`
dnl First look for a shared library.
if test -n "$acl_shlibext"; then
if test -f "$dir/$libname$shrext"; then
found_dir="$dir"
found_so="$dir/$libname$shrext"
else
if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
ver=`(cd "$dir" && \
for f in "$libname$shrext".*; do echo "$f"; done \
| sed -e "s,^$libname$shrext\\\\.,," \
| sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
| sed 1q ) 2>/dev/null`
if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
found_dir="$dir"
found_so="$dir/$libname$shrext.$ver"
fi
else
eval library_names=\"$acl_library_names_spec\"
for f in $library_names; do
if test -f "$dir/$f"; then
found_dir="$dir"
found_so="$dir/$f"
break
fi
done
fi
fi
fi
dnl Then look for a static library.
if test "X$found_dir" = "X"; then
if test -f "$dir/$libname.$acl_libext"; then
found_dir="$dir"
found_a="$dir/$libname.$acl_libext"
fi
fi
if test "X$found_dir" != "X"; then
if test -f "$dir/$libname.la"; then
found_la="$dir/$libname.la"
fi
fi
;;
esac
if test "X$found_dir" != "X"; then
break
fi
done
fi
if test "X$found_dir" != "X"; then
dnl Found the library.
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
if test "X$found_so" != "X"; then
dnl Linking with a shared library. We attempt to hardcode its
dnl directory into the executable's runpath, unless it's the
dnl standard /usr/lib.
if test "$enable_rpath" = no \
|| test "X$found_dir" = "X/usr/$acl_libdirstem" \
|| test "X$found_dir" = "X/usr/$acl_libdirstem2"; then
dnl No hardcoding is needed.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
dnl Use an explicit option to hardcode DIR into the resulting
dnl binary.
dnl Potentially add DIR to ltrpathdirs.
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
haveit=
for x in $ltrpathdirs; do
if test "X$x" = "X$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
ltrpathdirs="$ltrpathdirs $found_dir"
fi
dnl The hardcoding into $LIBNAME is system dependent.
if test "$acl_hardcode_direct" = yes; then
dnl Using DIR/libNAME.so during linking hardcodes DIR into the
dnl resulting binary.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then
dnl Use an explicit option to hardcode DIR into the resulting
dnl binary.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
dnl Potentially add DIR to rpathdirs.
dnl The rpathdirs will be appended to $LIBNAME at the end.
haveit=
for x in $rpathdirs; do
if test "X$x" = "X$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
rpathdirs="$rpathdirs $found_dir"
fi
else
dnl Rely on "-L$found_dir".
dnl But don't add it if it's already contained in the LDFLAGS
dnl or the already constructed $LIBNAME
haveit=
for x in $LDFLAGS $LIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
fi
if test "$acl_hardcode_minus_L" != no; then
dnl FIXME: Not sure whether we should use
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
dnl here.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH
dnl here, because this doesn't fit in flags passed to the
dnl compiler. So give up. No hardcoding. This affects only
dnl very old systems.
dnl FIXME: Not sure whether we should use
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
dnl here.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
fi
fi
fi
fi
else
if test "X$found_a" != "X"; then
dnl Linking with a static library.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
else
dnl We shouldn't come here, but anyway it's good to have a
dnl fallback.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
fi
fi
dnl Assume the include files are nearby.
additional_includedir=
case "$found_dir" in
*/$acl_libdirstem | */$acl_libdirstem/)
basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
if test "$name" = '$1'; then
LIB[]NAME[]_PREFIX="$basedir"
fi
additional_includedir="$basedir/include"
;;
*/$acl_libdirstem2 | */$acl_libdirstem2/)
basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'`
if test "$name" = '$1'; then
LIB[]NAME[]_PREFIX="$basedir"
fi
additional_includedir="$basedir/include"
;;
esac
if test "X$additional_includedir" != "X"; then
dnl Potentially add $additional_includedir to $INCNAME.
dnl But don't add it
dnl 1. if it's the standard /usr/include,
dnl 2. if it's /usr/local/include and we are using GCC on Linux,
dnl 3. if it's already present in $CPPFLAGS or the already
dnl constructed $INCNAME,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_includedir" != "X/usr/include"; then
haveit=
if test "X$additional_includedir" = "X/usr/local/include"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
for x in $CPPFLAGS $INC[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-I$additional_includedir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_includedir"; then
dnl Really add $additional_includedir to $INCNAME.
INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
fi
fi
fi
fi
fi
dnl Look for dependencies.
if test -n "$found_la"; then
dnl Read the .la file. It defines the variables
dnl dlname, library_names, old_library, dependency_libs, current,
dnl age, revision, installed, dlopen, dlpreopen, libdir.
save_libdir="$libdir"
case "$found_la" in
*/* | *\\*) . "$found_la" ;;
*) . "./$found_la" ;;
esac
libdir="$save_libdir"
dnl We use only dependency_libs.
for dep in $dependency_libs; do
case "$dep" in
-L*)
additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME.
dnl But don't add it
dnl 1. if it's the standard /usr/lib,
dnl 2. if it's /usr/local/lib and we are using GCC on Linux,
dnl 3. if it's already present in $LDFLAGS or the already
dnl constructed $LIBNAME,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \
&& test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then
haveit=
if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \
|| test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
haveit=
for x in $LDFLAGS $LIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LIBNAME.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir"
fi
fi
haveit=
for x in $LDFLAGS $LTLIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LTLIBNAME.
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir"
fi
fi
fi
fi
;;
-R*)
dir=`echo "X$dep" | sed -e 's/^X-R//'`
if test "$enable_rpath" != no; then
dnl Potentially add DIR to rpathdirs.
dnl The rpathdirs will be appended to $LIBNAME at the end.
haveit=
for x in $rpathdirs; do
if test "X$x" = "X$dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
rpathdirs="$rpathdirs $dir"
fi
dnl Potentially add DIR to ltrpathdirs.
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
haveit=
for x in $ltrpathdirs; do
if test "X$x" = "X$dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
ltrpathdirs="$ltrpathdirs $dir"
fi
fi
;;
-l*)
dnl Handle this in the next round.
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
;;
*.la)
dnl Handle this in the next round. Throw away the .la's
dnl directory; it is already contained in a preceding -L
dnl option.
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
;;
*)
dnl Most likely an immediate library name.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
;;
esac
done
fi
else
dnl Didn't find the library; assume it is in the system directories
dnl known to the linker and runtime loader. (All the system
dnl directories known to the linker should also be known to the
dnl runtime loader, otherwise the system is severely misconfigured.)
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
fi
fi
fi
done
done
if test "X$rpathdirs" != "X"; then
if test -n "$acl_hardcode_libdir_separator"; then
dnl Weird platform: only the last -rpath option counts, the user must
dnl pass all path elements in one option. We can arrange that for a
dnl single library, but not when more than one $LIBNAMEs are used.
alldirs=
for found_dir in $rpathdirs; do
alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir"
done
dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl.
acl_save_libdir="$libdir"
libdir="$alldirs"
eval flag=\"$acl_hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
else
dnl The -rpath options are cumulative.
for found_dir in $rpathdirs; do
acl_save_libdir="$libdir"
libdir="$found_dir"
eval flag=\"$acl_hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
done
fi
fi
if test "X$ltrpathdirs" != "X"; then
dnl When using libtool, the option that works for both libraries and
dnl executables is -R. The -R options are cumulative.
for found_dir in $ltrpathdirs; do
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
done
fi
popdef([P_A_C_K])
popdef([PACKLIBS])
popdef([PACKUP])
popdef([PACK])
popdef([NAME])
])
dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
dnl unless already present in VAR.
dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
dnl contains two or three consecutive elements that belong together.
AC_DEFUN([AC_LIB_APPENDTOVAR],
[
for element in [$2]; do
haveit=
for x in $[$1]; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X$element"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
[$1]="${[$1]}${[$1]:+ }$element"
fi
done
])
dnl For those cases where a variable contains several -L and -l options
dnl referring to unknown libraries and directories, this macro determines the
dnl necessary additional linker options for the runtime path.
dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL])
dnl sets LDADDVAR to linker options needed together with LIBSVALUE.
dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed,
dnl otherwise linking without libtool is assumed.
AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
[
AC_REQUIRE([AC_LIB_RPATH])
AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
$1=
if test "$enable_rpath" != no; then
if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then
dnl Use an explicit option to hardcode directories into the resulting
dnl binary.
rpathdirs=
next=
for opt in $2; do
if test -n "$next"; then
dir="$next"
dnl No need to hardcode the standard /usr/lib.
if test "X$dir" != "X/usr/$acl_libdirstem" \
&& test "X$dir" != "X/usr/$acl_libdirstem2"; then
rpathdirs="$rpathdirs $dir"
fi
next=
else
case $opt in
-L) next=yes ;;
-L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
dnl No need to hardcode the standard /usr/lib.
if test "X$dir" != "X/usr/$acl_libdirstem" \
&& test "X$dir" != "X/usr/$acl_libdirstem2"; then
rpathdirs="$rpathdirs $dir"
fi
next= ;;
*) next= ;;
esac
fi
done
if test "X$rpathdirs" != "X"; then
if test -n ""$3""; then
dnl libtool is used for linking. Use -R options.
for dir in $rpathdirs; do
$1="${$1}${$1:+ }-R$dir"
done
else
dnl The linker is used for linking directly.
if test -n "$acl_hardcode_libdir_separator"; then
dnl Weird platform: only the last -rpath option counts, the user
dnl must pass all path elements in one option.
alldirs=
for dir in $rpathdirs; do
alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir"
done
acl_save_libdir="$libdir"
libdir="$alldirs"
eval flag=\"$acl_hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
$1="$flag"
else
dnl The -rpath options are cumulative.
for dir in $rpathdirs; do
acl_save_libdir="$libdir"
libdir="$dir"
eval flag=\"$acl_hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
$1="${$1}${$1:+ }$flag"
done
fi
fi
fi
fi
fi
AC_SUBST([$1])
])

224
m4/lib-prefix.m4
View File

@ -1,224 +0,0 @@
# lib-prefix.m4 serial 7 (gettext-0.18)
dnl Copyright (C) 2001-2005, 2008-2017 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
dnl require excessive bracketing.
ifdef([AC_HELP_STRING],
[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
dnl to access previously installed libraries. The basic assumption is that
dnl a user will want packages to use other packages he previously installed
dnl with the same --prefix option.
dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
dnl libraries, but is otherwise very convenient.
AC_DEFUN([AC_LIB_PREFIX],
[
AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
dnl By default, look in $includedir and $libdir.
use_additional=yes
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
AC_LIB_ARG_WITH([lib-prefix],
[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
--without-lib-prefix don't search for libraries in includedir and libdir],
[
if test "X$withval" = "Xno"; then
use_additional=no
else
if test "X$withval" = "X"; then
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
else
additional_includedir="$withval/include"
additional_libdir="$withval/$acl_libdirstem"
fi
fi
])
if test $use_additional = yes; then
dnl Potentially add $additional_includedir to $CPPFLAGS.
dnl But don't add it
dnl 1. if it's the standard /usr/include,
dnl 2. if it's already present in $CPPFLAGS,
dnl 3. if it's /usr/local/include and we are using GCC on Linux,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_includedir" != "X/usr/include"; then
haveit=
for x in $CPPFLAGS; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-I$additional_includedir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test "X$additional_includedir" = "X/usr/local/include"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
if test -d "$additional_includedir"; then
dnl Really add $additional_includedir to $CPPFLAGS.
CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
fi
fi
fi
fi
dnl Potentially add $additional_libdir to $LDFLAGS.
dnl But don't add it
dnl 1. if it's the standard /usr/lib,
dnl 2. if it's already present in $LDFLAGS,
dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
haveit=
for x in $LDFLAGS; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
if test -n "$GCC"; then
case $host_os in
linux*) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LDFLAGS.
LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
fi
fi
fi
fi
fi
])
dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
dnl acl_final_exec_prefix, containing the values to which $prefix and
dnl $exec_prefix will expand at the end of the configure script.
AC_DEFUN([AC_LIB_PREPARE_PREFIX],
[
dnl Unfortunately, prefix and exec_prefix get only finally determined
dnl at the end of configure.
if test "X$prefix" = "XNONE"; then
acl_final_prefix="$ac_default_prefix"
else
acl_final_prefix="$prefix"
fi
if test "X$exec_prefix" = "XNONE"; then
acl_final_exec_prefix='${prefix}'
else
acl_final_exec_prefix="$exec_prefix"
fi
acl_save_prefix="$prefix"
prefix="$acl_final_prefix"
eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
prefix="$acl_save_prefix"
])
dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
dnl variables prefix and exec_prefix bound to the values they will have
dnl at the end of the configure script.
AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
[
acl_save_prefix="$prefix"
prefix="$acl_final_prefix"
acl_save_exec_prefix="$exec_prefix"
exec_prefix="$acl_final_exec_prefix"
$1
exec_prefix="$acl_save_exec_prefix"
prefix="$acl_save_prefix"
])
dnl AC_LIB_PREPARE_MULTILIB creates
dnl - a variable acl_libdirstem, containing the basename of the libdir, either
dnl "lib" or "lib64" or "lib/64",
dnl - a variable acl_libdirstem2, as a secondary possible value for
dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or
dnl "lib/amd64".
AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
[
dnl There is no formal standard regarding lib and lib64.
dnl On glibc systems, the current practice is that on a system supporting
dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine
dnl the compiler's default mode by looking at the compiler's library search
dnl path. If at least one of its elements ends in /lib64 or points to a
dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI.
dnl Otherwise we use the default, namely "lib".
dnl On Solaris systems, the current practice is that on a system supporting
dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or
dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib.
AC_REQUIRE([AC_CANONICAL_HOST])
acl_libdirstem=lib
acl_libdirstem2=
case "$host_os" in
solaris*)
dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment
dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>.
dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link."
dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the
dnl symlink is missing, so we set acl_libdirstem2 too.
AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit],
[AC_EGREP_CPP([sixtyfour bits], [
#ifdef _LP64
sixtyfour bits
#endif
], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no])
])
if test $gl_cv_solaris_64bit = yes; then
acl_libdirstem=lib/64
case "$host_cpu" in
sparc*) acl_libdirstem2=lib/sparcv9 ;;
i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
esac
fi
;;
*)
searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
if test -n "$searchpath"; then
acl_save_IFS="${IFS= }"; IFS=":"
for searchdir in $searchpath; do
if test -d "$searchdir"; then
case "$searchdir" in
*/lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
*/../ | */.. )
# Better ignore directories of this form. They are misleading.
;;
*) searchdir=`cd "$searchdir" && pwd`
case "$searchdir" in
*/lib64 ) acl_libdirstem=lib64 ;;
esac ;;
esac
fi
done
IFS="$acl_save_IFS"
fi
;;
esac
test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
])

34
m4/perlmod.m4
View File

@ -1,34 +0,0 @@
# perlmod.m4 - Check for the availability of a perl module -*-Autoconf-*-
#
# Copyright (C) 2015 by attila <attila@stalphonsos.com>
#
# Permission to use, copy, modify, and distribute this software for
# any purpose with or without fee is hereby granted, provided that the
# above copyright notice and this permission notice appear in all
# copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
# AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
# PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# AM_PERL_MODULE([module_name],[code_to_execute])
# -----------------------------------------------
# serial 1
AC_DEFUN([AM_PERL_MODULE],
[AC_PREREQ([2.60])dnl
AC_MSG_CHECKING([for $1])
_modfile=`$PERL -e 'use '$1'; my $p="'$1'"; $p =~ s/::/\//g; print $INC{"$p.pm"}."\n";' 2>/dev/null`
if test -z "$_modfile"; then
AC_MSG_WARN([missing $1])
else
AC_MSG_RESULT([$_modfile])
m4_default([$2],[:])
fi
])dnl