autoconf: use c11 on Mac if supported (#717)
This uses a macro from the Autoconf archive to check compiler features. Fixes #674
This commit is contained in:
Phil Burk
GitHub
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2ed65072ca
commit
1a9b91c9b2
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@ -1202,7 +1202,7 @@ fi
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# Invoke $ECHO with all args, space-separated.
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func_echo_all ()
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{
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$ECHO "$*"
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$ECHO "$*"
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}
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case "$ECHO" in
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@ -8542,7 +8542,7 @@ _LT_DECL(, macro_revision, 0)
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# included after everything else. This provides aclocal with the
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# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
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# because those macros already exist, or will be overwritten later.
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# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
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# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
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#
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# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
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# Yes, that means every name once taken will need to remain here until
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@ -8616,7 +8616,7 @@ m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])])
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# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
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# serial 1 (pkg-config-0.24)
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#
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#
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# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
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#
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# This program is free software; you can redistribute it and/or modify
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@ -8739,7 +8739,7 @@ if test $pkg_failed = yes; then
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_PKG_SHORT_ERRORS_SUPPORTED
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if test $_pkg_short_errors_supported = yes; then
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$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
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else
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else
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$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
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fi
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# Put the nasty error message in config.log where it belongs
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@ -8774,3 +8774,58 @@ else
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fi[]dnl
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])# PKG_CHECK_MODULES
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# This was added to aclocal.m4 because PortAudio ships with configure.in
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# and Makefile.in created manually.
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
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#
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# DESCRIPTION
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#
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# Check whether the given FLAG works with the current language's compiler
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# or gives an error. (Warnings, however, are ignored)
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#
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# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
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# success/failure.
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#
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# If EXTRA-FLAGS is defined, it is added to the current language's default
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# flags (e.g. CFLAGS) when the check is done. The check is thus made with
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# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
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# force the compiler to issue an error when a bad flag is given.
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#
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# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
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#
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# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
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# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
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#
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# LICENSE
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#
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# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 6
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AC_DEFUN([AX_CHECK_COMPILE_FLAG],
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[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
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AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
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AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
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ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
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_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
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AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
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[AS_VAR_SET(CACHEVAR,[yes])],
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[AS_VAR_SET(CACHEVAR,[no])])
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_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
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AS_VAR_IF(CACHEVAR,yes,
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[m4_default([$2], :)],
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[m4_default([$3], :)])
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AS_VAR_POPDEF([CACHEVAR])dnl
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])dnl AX_CHECK_COMPILE_FLAGS
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@ -252,7 +252,8 @@ case "${host_os}" in
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mac_version=""
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fi
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SHARED_FLAGS="$LIBS -dynamiclib $mac_arches $mac_sysroot $mac_version_min"
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CFLAGS="-std=c99 $CFLAGS $mac_arches $mac_sysroot $mac_version_min"
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AX_CHECK_COMPILE_FLAG([-std=c11], [CFLAGS="-std=c11 $CFLAGS"], [CFLAGS="-std=c99 $CFLAGS"])
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CFLAGS="$CFLAGS $mac_arches $mac_sysroot $mac_version_min"
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OTHER_OBJS="src/os/unix/pa_unix_hostapis.o src/os/unix/pa_unix_util.o src/hostapi/coreaudio/pa_mac_core.o src/hostapi/coreaudio/pa_mac_core_utilities.o src/hostapi/coreaudio/pa_mac_core_blocking.o src/common/pa_ringbuffer.o"
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PADLL="libportaudio.dylib"
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;;
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