mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-22 04:22:34 +03:00
Reimplement compiler options checking.
This commit is contained in:
Andrew Borodin
parent
c32c4b316b
commit
62d2580302
@ -7,6 +7,10 @@ m4_include([m4.include/gnulib/windows-stat-inodes.m4])
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m4_include([m4.include/gnulib/sys_types_h.m4])
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m4_include([m4.include/ax_path_lib_pcre.m4])
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m4_include([m4.include/dx_doxygen.m4])
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m4_include([m4.include/ax_require_defined.m4])
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m4_include([m4.include/ax_check_compile_flag.m4])
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m4_include([m4.include/ax_append_flag.m4])
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m4_include([m4.include/ax_append_compile_flags.m4])
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m4_include([m4.include/mc-cflags.m4])
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m4_include([m4.include/ax_gcc_func_attribute.m4])
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m4_include([m4.include/mc-check-search-type.m4])
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@ -53,7 +53,7 @@ fi
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AC_ARG_ENABLE([werror],
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AS_HELP_STRING([--enable-werror], [Handle all compiler warnings as errors]))
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if test "x$enable_werror" = xyes; then
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mc_CHECK_ONE_CFLAG([-Werror])
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AX_APPEND_COMPILE_FLAGS([-Werror], [mc_configured_cflags])
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fi
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dnl Compiler can generate warnings for unrecognized flags added to CFLAGS
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46
m4.include/ax_append_compile_flags.m4
Normal file
46
m4.include/ax_append_compile_flags.m4
Normal file
@ -0,0 +1,46 @@
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# ============================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
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# ============================================================================
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#
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# SYNOPSIS
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#
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# AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
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#
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# DESCRIPTION
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#
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# For every FLAG1, FLAG2 it is checked whether the compiler works with the
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# flag. If it does, the flag is added FLAGS-VARIABLE
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#
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# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
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# CFLAGS) is used. During the check the flag is always added to the
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# current language's flags.
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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: This macro depends on the AX_APPEND_FLAG and
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# AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
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# AX_APPEND_LINK_FLAGS.
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#
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# LICENSE
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#
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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 7
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AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
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[AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
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AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
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for flag in $1; do
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AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3], [$4])
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done
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])dnl AX_APPEND_COMPILE_FLAGS
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50
m4.include/ax_append_flag.m4
Normal file
50
m4.include/ax_append_flag.m4
Normal file
@ -0,0 +1,50 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
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#
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# DESCRIPTION
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#
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# FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
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# added in between.
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#
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# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
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# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains
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# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly
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# FLAG.
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#
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# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
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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 8
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AC_DEFUN([AX_APPEND_FLAG],
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[dnl
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AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
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AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
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AS_VAR_SET_IF(FLAGS,[
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AS_CASE([" AS_VAR_GET(FLAGS) "],
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[*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
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[
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AS_VAR_APPEND(FLAGS,[" $1"])
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AC_RUN_LOG([: FLAGS="$FLAGS"])
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])
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],
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[
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AS_VAR_SET(FLAGS,[$1])
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AC_RUN_LOG([: FLAGS="$FLAGS"])
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])
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AS_VAR_POPDEF([FLAGS])dnl
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])dnl AX_APPEND_FLAG
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53
m4.include/ax_check_compile_flag.m4
Normal file
53
m4.include/ax_check_compile_flag.m4
Normal file
@ -0,0 +1,53 @@
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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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37
m4.include/ax_require_defined.m4
Normal file
37
m4.include/ax_require_defined.m4
Normal file
@ -0,0 +1,37 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_REQUIRE_DEFINED(MACRO)
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#
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# DESCRIPTION
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#
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# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
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# been defined and thus are available for use. This avoids random issues
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# where a macro isn't expanded. Instead the configure script emits a
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# non-fatal:
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#
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# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
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#
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# It's like AC_REQUIRE except it doesn't expand the required macro.
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#
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# Here's an example:
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#
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# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
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#
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# LICENSE
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#
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# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
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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 2
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AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
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m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
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])dnl AX_REQUIRE_DEFINED
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@ -3,104 +3,88 @@ dnl
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dnl Check flags supported by C compiler
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dnl
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dnl @author Slava Zanko <slavazanko@gmail.com>
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dnl @version 2013-01-16
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dnl @modified by Andrew Borodin <aborodin@vmail.ru>
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dnl @version 2021-09-19
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dnl @license GPL
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dnl @copyright Free Software Foundation, Inc.
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AC_DEFUN([mc_CHECK_ONE_CFLAG],[
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AC_MSG_CHECKING([whether ${CC} accepts $1])
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safe_CFLAGS=$CFLAGS
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case "$CC" in
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clang*)
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CFLAGS="-Werror $1"
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;;
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*)
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CFLAGS="$1"
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;;
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esac
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([], [[return 0;]])],
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[mc_check_one_cflag=yes],
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[mc_check_one_cflag=no])
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CFLAGS=$safe_CFLAGS
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AC_MSG_RESULT([$mc_check_one_cflag])
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if test x$mc_check_one_cflag = xyes; then
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mc_configured_cflags="$mc_configured_cflags $1"
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fi
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])
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AC_DEFUN([mc_CHECK_CFLAGS],[
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AC_LANG_PUSH(C)
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mc_configured_cflags=""
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dnl Sorted -f options:
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dnl AC_MSG_CHECKING([CC is $CC])
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case "$CC" in
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gcc*)
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mc_CHECK_ONE_CFLAG([-fdiagnostics-show-option])
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dnl mc_CHECK_ONE_CFLAG([-fno-stack-protector])
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;;
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*)
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;;
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esac
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dnl AC_MSG_CHECKING([CC is $CC])
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dnl Sorted -W options:
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mc_CHECK_ONE_CFLAG([-Wassign-enum])
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mc_CHECK_ONE_CFLAG([-Wbad-function-cast])
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mc_CHECK_ONE_CFLAG([-Wcomment])
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mc_CHECK_ONE_CFLAG([-Wconditional-uninitialized])
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mc_CHECK_ONE_CFLAG([-Wdeclaration-after-statement])
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mc_CHECK_ONE_CFLAG([-Wfloat-conversion])
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mc_CHECK_ONE_CFLAG([-Wfloat-equal])
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mc_CHECK_ONE_CFLAG([-Wformat])
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mc_CHECK_ONE_CFLAG([-Wformat-security])
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mc_CHECK_ONE_CFLAG([-Wformat-signedness])
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mc_CHECK_ONE_CFLAG([-Wimplicit])
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mc_CHECK_ONE_CFLAG([-Wimplicit-fallthrough])
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mc_CHECK_ONE_CFLAG([-Wignored-qualifiers])
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mc_CHECK_ONE_CFLAG([-Wlogical-not-parentheses])
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mc_CHECK_ONE_CFLAG([-Wmaybe-uninitialized])
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mc_CHECK_ONE_CFLAG([-Wmissing-braces])
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mc_CHECK_ONE_CFLAG([-Wmissing-declarations])
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mc_CHECK_ONE_CFLAG([-Wmissing-field-initializers])
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mc_CHECK_ONE_CFLAG([-Wmissing-format-attribute])
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mc_CHECK_ONE_CFLAG([-Wmissing-parameter-type])
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mc_CHECK_ONE_CFLAG([-Wmissing-prototypes])
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mc_CHECK_ONE_CFLAG([-Wmissing-variable-declarations])
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mc_CHECK_ONE_CFLAG([-Wnested-externs])
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mc_CHECK_ONE_CFLAG([-Wno-long-long])
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mc_CHECK_ONE_CFLAG([-Wno-unreachable-code])
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mc_CHECK_ONE_CFLAG([-Wparentheses])
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mc_CHECK_ONE_CFLAG([-Wpointer-arith])
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mc_CHECK_ONE_CFLAG([-Wpointer-sign])
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mc_CHECK_ONE_CFLAG([-Wredundant-decls])
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mc_CHECK_ONE_CFLAG([-Wreturn-type])
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mc_CHECK_ONE_CFLAG([-Wsequence-point])
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mc_CHECK_ONE_CFLAG([-Wshadow])
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mc_CHECK_ONE_CFLAG([-Wsign-compare])
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dnl mc_CHECK_ONE_CFLAG([-Wstrict-aliasing])
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mc_CHECK_ONE_CFLAG([-Wstrict-prototypes])
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mc_CHECK_ONE_CFLAG([-Wswitch])
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mc_CHECK_ONE_CFLAG([-Wswitch-default])
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mc_CHECK_ONE_CFLAG([-Wtype-limits])
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mc_CHECK_ONE_CFLAG([-Wundef])
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mc_CHECK_ONE_CFLAG([-Wuninitialized])
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mc_CHECK_ONE_CFLAG([-Wunreachable-code])
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mc_CHECK_ONE_CFLAG([-Wunused-but-set-variable])
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mc_CHECK_ONE_CFLAG([-Wunused-function])
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mc_CHECK_ONE_CFLAG([-Wunused-label])
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mc_CHECK_ONE_CFLAG([-Wunused-parameter])
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mc_CHECK_ONE_CFLAG([-Wunused-result])
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mc_CHECK_ONE_CFLAG([-Wunused-value])
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mc_CHECK_ONE_CFLAG([-Wunused-variable])
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mc_CHECK_ONE_CFLAG([-Wwrite-strings])
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dnl https://stackoverflow.com/questions/52557417/how-to-check-support-compile-flag-in-autoconf-for-clang
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case "$CC" in
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clang*)
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EXTRA_OPTION="-Werror"
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;;
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*)
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EXTRA_OPTION=""
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;;
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esac
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dnl Sorted -f options:
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case "$CC" in
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gcc*)
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AX_APPEND_COMPILE_FLAGS([-fdiagnostics-show-option], [mc_configured_cflags])
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dnl AX_APPEND_COMPILE_FLAGS([-fno-stack-protector], [mc_configured_cflags])
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;;
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*)
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;;
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esac
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dnl Sorted -W options:
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AX_APPEND_COMPILE_FLAGS([-Wassign-enum], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wcomment], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wconditional-uninitialized], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wdeclaration-after-statement], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-conversion], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wfloat-equal], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wformat], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wformat-security], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wformat-signedness], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wimplicit], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wimplicit-fallthrough], [mc_configured_cflags], [$EXTRA_OPTION])
|
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AX_APPEND_COMPILE_FLAGS([-Wignored-qualifiers], [mc_configured_cflags], [$EXTRA_OPTION])
|
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AX_APPEND_COMPILE_FLAGS([-Wlogical-not-parentheses], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-braces], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-format-attribute], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-parameter-type], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wmissing-variable-declarations], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wnested-externs], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wno-long-long], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wno-unreachable-code], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wparentheses], [mc_configured_cflags], [$EXTRA_OPTION])
|
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AX_APPEND_COMPILE_FLAGS([-Wpointer-arith], [mc_configured_cflags], [$EXTRA_OPTION])
|
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AX_APPEND_COMPILE_FLAGS([-Wpointer-sign], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wredundant-decls], [mc_configured_cflags], [$EXTRA_OPTION])
|
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AX_APPEND_COMPILE_FLAGS([-Wreturn-type], [mc_configured_cflags], [$EXTRA_OPTION])
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AX_APPEND_COMPILE_FLAGS([-Wsequence-point], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wshadow], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wsign-compare], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
dnl AX_APPEND_COMPILE_FLAGS([-Wstrict-aliasing], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wswitch], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wswitch-default], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wtype-limits], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wundef], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wuninitialized], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunreachable-code], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-but-set-variable], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-function], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-label], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-parameter], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-result], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-value], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wunused-variable], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
AX_APPEND_COMPILE_FLAGS([-Wwrite-strings], [mc_configured_cflags], [$EXTRA_OPTION])
|
||||
|
||||
AC_LANG_POP()
|
||||
])
|
||||
|
||||
Loading…
Reference in New Issue
Block a user