mirror of
https://github.com/amadvance/snapraid.git
synced 2026-10-12 02:10:54 +00:00
Modernize configure.ac
This commit is contained in:
Andrea Mazzoleni
+2
-1
@@ -170,7 +170,8 @@ EXTRA_DIST = \
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cmdline/resource.rc \
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cmdline/resource.manifest \
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configure.windows-x86 configure.windows-x64 snapraid.conf.example.windows \
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acinclude.m4 \
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m4/ax_pthread.m4 \
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m4/m4_ax_check_compile_flag.m4 \
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raid/test/Makefile \
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raid/test/fulltest.c \
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raid/test/selftest.c \
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+1
-1
@@ -61,7 +61,7 @@ size_t direct_size(void);
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#include <pthread.h>
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#endif
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#if HAVE_PTHREAD_CREATE
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#if HAVE_PTHREAD
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#define HAVE_THREAD 1
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typedef pthread_t thread_id_t;
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typedef pthread_mutex_t thread_mutex_t;
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+33
-12
@@ -3,14 +3,19 @@ AC_PREREQ([2.65])
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dnl Get version number from git
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m4_define([git_revision], m4_esyscmd_s([./autover.sh]))
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AC_INIT([SnapRAID CLI], [git_revision], [], [snapraid], [https://www.snapraid.it])
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AC_CANONICAL_HOST
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AC_CANONICAL_BUILD
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AC_CANONICAL_TARGET
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AM_INIT_AUTOMAKE([foreign no-dependencies subdir-objects])
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AC_CONFIG_SRCDIR([cmdline/snapraid.c])
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AC_CONFIG_HEADERS([config.h])
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AC_CANONICAL_HOST
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dnl Enables as many system-specific extensions as reasonably possible
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AC_USE_SYSTEM_EXTENSIONS
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dnl Macro directory
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AC_CONFIG_MACRO_DIRS([m4])
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dnl Checks for programs.
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AC_PROG_CC
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AC_CHECK_PROG([VALGRIND],[valgrind],[valgrind],[])
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@@ -31,17 +36,20 @@ if test "x$is_windows" = "xyes"; then
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fi
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dnl Options to improve stacktrace (some disabled as no crash reported by years)
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AC_CHECK_CC_OPT([-fno-omit-frame-pointer], CFLAGS="$CFLAGS -fno-omit-frame-pointer", [])
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# AC_CHECK_CC_OPT([-fno-inline-functions-called-once], CFLAGS="$CFLAGS -fno-inline-functions-called-once", [])
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# AC_CHECK_CC_OPT([-fno-inline-small-functions], CFLAGS="$CFLAGS -fno-inline-small-functions", [])
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# AC_CHECK_CC_OPT([-fno-optimize-sibling-calls], CFLAGS="$CFLAGS -fno-optimize-sibling-calls", [])
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AC_CHECK_CC_OPT([-rdynamic], CFLAGS="$CFLAGS -rdynamic", [])
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AX_CHECK_COMPILE_FLAG([-fno-omit-frame-pointer], CFLAGS="$CFLAGS -fno-omit-frame-pointer", [])
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# AX_CHECK_COMPILE_FLAG([-fno-inline-functions-called-once], CFLAGS="$CFLAGS -fno-inline-functions-called-once", [])
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# AX_CHECK_COMPILE_FLAG([-fno-inline-small-functions], CFLAGS="$CFLAGS -fno-inline-small-functions", [])
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# AX_CHECK_COMPILE_FLAG([-fno-optimize-sibling-calls], CFLAGS="$CFLAGS -fno-optimize-sibling-calls", [])
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AX_CHECK_COMPILE_FLAG([-rdynamic], CFLAGS="$CFLAGS -rdynamic", [])
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# This the new default for gcc 10
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AC_CHECK_CC_OPT([-fno-common], CFLAGS="$CFLAGS -fno-common", [])
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AX_CHECK_COMPILE_FLAG([-fno-common], CFLAGS="$CFLAGS -fno-common", [])
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dnl Checks for system.
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AC_SYS_LARGEFILE
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dnl Checks for architecture
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AC_C_BIGENDIAN
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dnl Checks for header files.
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AC_HEADER_ASSERT
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AC_HEADER_DIRENT
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@@ -91,8 +99,6 @@ AC_CHECK_FUNCS([mach_absolute_time])
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AC_CHECK_FUNCS([backtrace backtrace_symbols])
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AC_SEARCH_LIBS([clock_gettime], [rt])
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AC_CHECK_FUNCS([clock_gettime])
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AC_CHECK_CC_OPT([-pthread], CFLAGS="$CFLAGS -pthread", CFLAGS="$CFLAGS -D_REENTRANT")
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AC_CHECK_FUNCS([pthread_create])
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AC_SEARCH_LIBS([exp], [m])
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AC_CHECK_FUNCS([eaccess faccessat])
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@@ -141,6 +147,24 @@ AC_CHECK_MEMBERS([struct statfs.f_fstypename], [], [], [[
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#endif
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]])
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dnl Checks for libraries
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have_pthreads=no
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AS_IF([test "x$is_windows" = "xyes"], [
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AC_MSG_NOTICE([Windows native threads support enabled])
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], [
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AC_CHECK_HEADERS([pthread.h])
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AX_PTHREAD([
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thread_model="pthreads"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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LIBS="$PTHREAD_LIBS $LIBS"
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AC_DEFINE([HAVE_PTHREAD], [1], [Define to 1 if POSIX threads are available])
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AC_MSG_NOTICE([POSIX threads support enabled])
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], [
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AC_MSG_WARN([Single-threaded version])
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])
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||||
])
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||||
AM_CONDITIONAL([HAVE_PTHREAD], [test "x$have_pthreads" = "xyes"])
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dnl Checks for libblkid
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AC_ARG_WITH([blkid],
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AS_HELP_STRING([--without-blkid], [Ignore presence of blkid and disable it]))
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@@ -157,9 +181,6 @@ AS_IF([test "x$have_blkid" = "xyes"],
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])
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])
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dnl Checks for architecture
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AC_C_BIGENDIAN
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dnl Checks for compiler
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AC_CHECK_CC_OPT([-Wall], CFLAGS="$CFLAGS -Wall", [])
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AC_CHECK_CC_OPT([-Wextra], CFLAGS="$CFLAGS -Wextra", [])
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@@ -0,0 +1,317 @@
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# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
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||||
# ===========================================================================
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||||
#
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# SYNOPSIS
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#
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# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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#
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# DESCRIPTION
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#
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# This macro figures out how to build C programs using POSIX threads. It
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# sets the PTHREAD_LIBS output variable to the threads library and linker
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# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
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# flags that are needed. (The user can also force certain compiler
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# flags/libs to be tested by setting these environment variables.)
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#
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# Also sets PTHREAD_CC to any special C compiler that is needed for
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# multi-threaded programs (defaults to the value of CC otherwise). (This
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# is necessary on AIX to use the special cc_r compiler alias.)
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#
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# NOTE: You are assumed to not only compile your program with these flags,
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# but also link it with them as well. e.g. you should link with
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# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
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#
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# If you are only building threads programs, you may wish to use these
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# variables in your default LIBS, CFLAGS, and CC:
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#
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# LIBS="$PTHREAD_LIBS $LIBS"
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# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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# CC="$PTHREAD_CC"
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#
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# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
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# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
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# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
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#
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# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
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# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
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# PTHREAD_CFLAGS.
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#
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||||
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
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||||
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
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||||
# is not found. If ACTION-IF-FOUND is not specified, the default action
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# will define HAVE_PTHREAD.
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||||
#
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||||
# Please let the authors know if this macro fails on any platform, or if
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# you have any other suggestions or comments. This macro was based on work
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# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
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# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
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# Alejandro Forero Cuervo to the autoconf macro repository. We are also
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# grateful for the helpful feedback of numerous users.
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#
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# Updated for Autoconf 2.68 by Daniel Richard G.
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#
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# LICENSE
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#
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# Copyright (c) 2008 Steven G. Johnson <[email protected]>
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# Copyright (c) 2011 Daniel Richard G. <[email protected]>
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#
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||||
# This program is free software: you can redistribute it and/or modify it
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||||
# under the terms of the GNU General Public License as published by the
|
||||
# Free Software Foundation, either version 3 of the License, or (at your
|
||||
# option) any later version.
|
||||
#
|
||||
# This program 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 General
|
||||
# Public License for more details.
|
||||
#
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||||
# You should have received a copy of the GNU General Public License along
|
||||
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
# As a special exception, the respective Autoconf Macro's copyright owner
|
||||
# gives unlimited permission to copy, distribute and modify the configure
|
||||
# scripts that are the output of Autoconf when processing the Macro. You
|
||||
# need not follow the terms of the GNU General Public License when using
|
||||
# or distributing such scripts, even though portions of the text of the
|
||||
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||||
# all other use of the material that constitutes the Autoconf Macro.
|
||||
#
|
||||
# This special exception to the GPL applies to versions of the Autoconf
|
||||
# Macro released by the Autoconf Archive. When you make and distribute a
|
||||
# modified version of the Autoconf Macro, you may extend this special
|
||||
# exception to the GPL to apply to your modified version as well.
|
||||
|
||||
#serial 20
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||||
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
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AC_DEFUN([AX_PTHREAD], [
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_LANG_PUSH([C])
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ax_pthread_ok=no
|
||||
|
||||
# We used to check for pthread.h first, but this fails if pthread.h
|
||||
# requires special compiler flags (e.g. on True64 or Sequent).
|
||||
# It gets checked for in the link test anyway.
|
||||
|
||||
# First of all, check if the user has set any of the PTHREAD_LIBS,
|
||||
# etcetera environment variables, and if threads linking works using
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||||
# them:
|
||||
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
|
||||
save_CFLAGS="$CFLAGS"
|
||||
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||
save_LIBS="$LIBS"
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||||
LIBS="$PTHREAD_LIBS $LIBS"
|
||||
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
|
||||
AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes)
|
||||
AC_MSG_RESULT($ax_pthread_ok)
|
||||
if test x"$ax_pthread_ok" = xno; then
|
||||
PTHREAD_LIBS=""
|
||||
PTHREAD_CFLAGS=""
|
||||
fi
|
||||
LIBS="$save_LIBS"
|
||||
CFLAGS="$save_CFLAGS"
|
||||
fi
|
||||
|
||||
# We must check for the threads library under a number of different
|
||||
# names; the ordering is very important because some systems
|
||||
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
|
||||
# libraries is broken (non-POSIX).
|
||||
|
||||
# Create a list of thread flags to try. Items starting with a "-" are
|
||||
# C compiler flags, and other items are library names, except for "none"
|
||||
# which indicates that we try without any flags at all, and "pthread-config"
|
||||
# which is a program returning the flags for the Pth emulation library.
|
||||
|
||||
ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
|
||||
|
||||
# The ordering *is* (sometimes) important. Some notes on the
|
||||
# individual items follow:
|
||||
|
||||
# pthreads: AIX (must check this before -lpthread)
|
||||
# none: in case threads are in libc; should be tried before -Kthread and
|
||||
# other compiler flags to prevent continual compiler warnings
|
||||
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
|
||||
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
|
||||
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
|
||||
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
|
||||
# -pthreads: Solaris/gcc
|
||||
# -mthreads: Mingw32/gcc, Lynx/gcc
|
||||
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
|
||||
# doesn't hurt to check since this sometimes defines pthreads too;
|
||||
# also defines -D_REENTRANT)
|
||||
# ... -mt is also the pthreads flag for HP/aCC
|
||||
# pthread: Linux, etcetera
|
||||
# --thread-safe: KAI C++
|
||||
# pthread-config: use pthread-config program (for GNU Pth library)
|
||||
|
||||
case ${host_os} in
|
||||
solaris*)
|
||||
|
||||
# On Solaris (at least, for some versions), libc contains stubbed
|
||||
# (non-functional) versions of the pthreads routines, so link-based
|
||||
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
|
||||
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
|
||||
# a function called by this macro, so we could check for that, but
|
||||
# who knows whether they'll stub that too in a future libc.) So,
|
||||
# we'll just look for -pthreads and -lpthread first:
|
||||
|
||||
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
|
||||
;;
|
||||
|
||||
darwin*)
|
||||
ax_pthread_flags="-pthread $ax_pthread_flags"
|
||||
;;
|
||||
esac
|
||||
|
||||
if test x"$ax_pthread_ok" = xno; then
|
||||
for flag in $ax_pthread_flags; do
|
||||
|
||||
case $flag in
|
||||
none)
|
||||
AC_MSG_CHECKING([whether pthreads work without any flags])
|
||||
;;
|
||||
|
||||
-*)
|
||||
AC_MSG_CHECKING([whether pthreads work with $flag])
|
||||
PTHREAD_CFLAGS="$flag"
|
||||
;;
|
||||
|
||||
pthread-config)
|
||||
AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no)
|
||||
if test x"$ax_pthread_config" = xno; then continue; fi
|
||||
PTHREAD_CFLAGS="`pthread-config --cflags`"
|
||||
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
|
||||
;;
|
||||
|
||||
*)
|
||||
AC_MSG_CHECKING([for the pthreads library -l$flag])
|
||||
PTHREAD_LIBS="-l$flag"
|
||||
;;
|
||||
esac
|
||||
|
||||
save_LIBS="$LIBS"
|
||||
save_CFLAGS="$CFLAGS"
|
||||
LIBS="$PTHREAD_LIBS $LIBS"
|
||||
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||
|
||||
# Check for various functions. We must include pthread.h,
|
||||
# since some functions may be macros. (On the Sequent, we
|
||||
# need a special flag -Kthread to make this header compile.)
|
||||
# We check for pthread_join because it is in -lpthread on IRIX
|
||||
# while pthread_create is in libc. We check for pthread_attr_init
|
||||
# due to DEC craziness with -lpthreads. We check for
|
||||
# pthread_cleanup_push because it is one of the few pthread
|
||||
# functions on Solaris that doesn't have a non-functional libc stub.
|
||||
# We try pthread_create on general principles.
|
||||
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
|
||||
static void routine(void *a) { *((int*)a) = 0; }
|
||||
static void *start_routine(void *a) { return a; }],
|
||||
[pthread_t th; pthread_attr_t attr;
|
||||
pthread_create(&th, 0, start_routine, 0);
|
||||
pthread_join(th, 0);
|
||||
pthread_attr_init(&attr);
|
||||
pthread_cleanup_push(routine, 0);
|
||||
pthread_cleanup_pop(0) /* ; */])],
|
||||
[ax_pthread_ok=yes],
|
||||
[])
|
||||
|
||||
LIBS="$save_LIBS"
|
||||
CFLAGS="$save_CFLAGS"
|
||||
|
||||
AC_MSG_RESULT($ax_pthread_ok)
|
||||
if test "x$ax_pthread_ok" = xyes; then
|
||||
break;
|
||||
fi
|
||||
|
||||
PTHREAD_LIBS=""
|
||||
PTHREAD_CFLAGS=""
|
||||
done
|
||||
fi
|
||||
|
||||
# Various other checks:
|
||||
if test "x$ax_pthread_ok" = xyes; then
|
||||
save_LIBS="$LIBS"
|
||||
LIBS="$PTHREAD_LIBS $LIBS"
|
||||
save_CFLAGS="$CFLAGS"
|
||||
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||
|
||||
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
|
||||
AC_MSG_CHECKING([for joinable pthread attribute])
|
||||
attr_name=unknown
|
||||
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
|
||||
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
|
||||
[int attr = $attr; return attr /* ; */])],
|
||||
[attr_name=$attr; break],
|
||||
[])
|
||||
done
|
||||
AC_MSG_RESULT($attr_name)
|
||||
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
|
||||
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
|
||||
[Define to necessary symbol if this constant
|
||||
uses a non-standard name on your system.])
|
||||
fi
|
||||
|
||||
AC_MSG_CHECKING([if more special flags are required for pthreads])
|
||||
flag=no
|
||||
case ${host_os} in
|
||||
aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
|
||||
osf* | hpux*) flag="-D_REENTRANT";;
|
||||
solaris*)
|
||||
if test "$GCC" = "yes"; then
|
||||
flag="-D_REENTRANT"
|
||||
else
|
||||
flag="-mt -D_REENTRANT"
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
AC_MSG_RESULT(${flag})
|
||||
if test "x$flag" != xno; then
|
||||
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
|
||||
fi
|
||||
|
||||
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
|
||||
ax_cv_PTHREAD_PRIO_INHERIT, [
|
||||
AC_LINK_IFELSE([
|
||||
AC_LANG_PROGRAM([[#include <pthread.h>]], [[int i = PTHREAD_PRIO_INHERIT;]])],
|
||||
[ax_cv_PTHREAD_PRIO_INHERIT=yes],
|
||||
[ax_cv_PTHREAD_PRIO_INHERIT=no])
|
||||
])
|
||||
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
|
||||
AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], 1, [Have PTHREAD_PRIO_INHERIT.]))
|
||||
|
||||
LIBS="$save_LIBS"
|
||||
CFLAGS="$save_CFLAGS"
|
||||
|
||||
# More AIX lossage: compile with *_r variant
|
||||
if test "x$GCC" != xyes; then
|
||||
case $host_os in
|
||||
aix*)
|
||||
AS_CASE(["x/$CC"],
|
||||
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
|
||||
[#handle absolute path differently from PATH based program lookup
|
||||
AS_CASE(["x$CC"],
|
||||
[x/*],
|
||||
[AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
|
||||
[AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
fi
|
||||
|
||||
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
|
||||
|
||||
AC_SUBST(PTHREAD_LIBS)
|
||||
AC_SUBST(PTHREAD_CFLAGS)
|
||||
AC_SUBST(PTHREAD_CC)
|
||||
|
||||
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
||||
if test x"$ax_pthread_ok" = xyes; then
|
||||
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
|
||||
:
|
||||
else
|
||||
ax_pthread_ok=no
|
||||
$2
|
||||
fi
|
||||
AC_LANG_POP
|
||||
])dnl AX_PTHREAD
|
||||
@@ -0,0 +1,63 @@
|
||||
# ===========================================================================
|
||||
# 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 <[email protected]>
|
||||
# Copyright (c) 2011 Maarten Bosmans <[email protected]>
|
||||
#
|
||||
# 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_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 the _AC_LANG compiler accepts $1], CACHEVAR, [
|
||||
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
|
||||
if test x"m4_case(_AC_LANG,
|
||||
[C], [$GCC],
|
||||
[C++], [$GXX],
|
||||
[Fortran], [$GFC],
|
||||
[Fortran 77], [$G77],
|
||||
[Objective C], [$GOBJC],
|
||||
[Objective C++], [$GOBJCXX],
|
||||
[no])" = xyes ; then
|
||||
add_gnu_werror="-Werror"
|
||||
fi
|
||||
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1 $add_gnu_werror"
|
||||
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
|
||||
Reference in New Issue
Block a user