commit: ab30b4c73772c4b98a0d36e0f290f60bc8f16907 Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Sun Jan 13 11:33:24 2019 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Sun Jan 13 11:38:51 2019 +0000 URL: https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=ab30b4c7
m4: ax_* update via autogen.sh Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> m4/ax_append_compile_flags.m4 | 31 +++++--------------------- m4/ax_append_flag.m4 | 31 +++++--------------------- m4/ax_append_link_flags.m4 | 31 +++++--------------------- m4/ax_cflags_force_c89.m4 | 41 +++++++++-------------------------- m4/ax_cflags_no_writable_strings.m4 | 42 +++++++++--------------------------- m4/ax_cflags_strict_prototypes.m4 | 43 ++++++++++--------------------------- m4/ax_check_compile_flag.m4 | 31 +++++--------------------- m4/ax_check_link_flag.m4 | 31 +++++--------------------- m4/ax_compiler_flags_cflags.m4 | 35 ++++++++++++++++++++++++------ m4/ax_compiler_flags_ldflags.m4 | 23 ++++++++++++++++++-- 10 files changed, 105 insertions(+), 234 deletions(-) diff --git a/m4/ax_append_compile_flags.m4 b/m4/ax_append_compile_flags.m4 index 5b6f1af..9c85635 100644 --- a/m4/ax_append_compile_flags.m4 +++ b/m4/ax_append_compile_flags.m4 @@ -30,33 +30,12 @@ # # Copyright (c) 2011 Maarten Bosmans <mkbosm...@gmail.com> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 +#serial 7 AC_DEFUN([AX_APPEND_COMPILE_FLAGS], [AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG]) diff --git a/m4/ax_append_flag.m4 b/m4/ax_append_flag.m4 index e8c5312..dd6d8b6 100644 --- a/m4/ax_append_flag.m4 +++ b/m4/ax_append_flag.m4 @@ -23,33 +23,12 @@ # Copyright (c) 2008 Guido U. Draheim <gui...@gmx.de> # Copyright (c) 2011 Maarten Bosmans <mkbosm...@gmail.com> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 8 AC_DEFUN([AX_APPEND_FLAG], [dnl diff --git a/m4/ax_append_link_flags.m4 b/m4/ax_append_link_flags.m4 index 6f7f174..99b9fa5 100644 --- a/m4/ax_append_link_flags.m4 +++ b/m4/ax_append_link_flags.m4 @@ -28,33 +28,12 @@ # # Copyright (c) 2011 Maarten Bosmans <mkbosm...@gmail.com> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 +#serial 7 AC_DEFUN([AX_APPEND_LINK_FLAGS], [AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG]) diff --git a/m4/ax_cflags_force_c89.m4 b/m4/ax_cflags_force_c89.m4 index 59b33c1..815fb68 100644 --- a/m4/ax_cflags_force_c89.m4 +++ b/m4/ax_cflags_force_c89.m4 @@ -29,41 +29,19 @@ # # Copyright (c) 2009 Guido U. Draheim <gui...@gmx.de> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 +#serial 12 AC_DEFUN([AX_CFLAGS_FORCE_C89],[dnl AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_force_c89])dnl AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for C89 mode], VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG_C + AC_LANG_PUSH([C]) ac_save_[]FLAGS="$[]FLAGS" for ac_arg dnl in "-pedantic % -ansi -pedantic" dnl GCC @@ -76,11 +54,12 @@ in "-pedantic % -ansi -pedantic" dnl GCC "-h conform % -h conform" dnl Cray C (Unicos) # do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], + [[return 0;]])], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[]) done FLAGS="$ac_save_[]FLAGS" - AC_LANG_RESTORE + AC_LANG_POP([C]) ]) AS_VAR_POPDEF([FLAGS])dnl AX_REQUIRE_DEFINED([AX_APPEND_FLAG]) diff --git a/m4/ax_cflags_no_writable_strings.m4 b/m4/ax_cflags_no_writable_strings.m4 index 48831fa..14478a6 100644 --- a/m4/ax_cflags_no_writable_strings.m4 +++ b/m4/ax_cflags_no_writable_strings.m4 @@ -30,33 +30,12 @@ # # Copyright (c) 2008 Guido U. Draheim <gui...@gmx.de> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 +#serial 16 AC_DEFUN([AX_FLAGS_NO_WRITABLE_STRINGS],[dnl AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl @@ -79,18 +58,17 @@ in "-pedantic -Werror % -fno-writable-strings -Wwrite-strings" dnl GCC "-fullwarn -use_readonly_const %% ok, its the default" dnl IRIX C # do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[return 0;]])], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[]) done case ".$VAR" in .|.no|.no,*) ;; *) # sanity check - testing strcpy() from string.h cp config.log config.tmp - AC_TRY_COMPILE([#include <string.h>],[ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string.h>]], [[ char test[16]; - if (strcpy (test, "test")) return 1;], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 + if (strcpy (test, "test")) return 1;]])],[dnl the original did use test -n `$CC testprogram.c` + if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 then VAR="no, suppressed, string.h," ; fi], [VAR="no, suppressed, string.h"]) rm config.tmp diff --git a/m4/ax_cflags_strict_prototypes.m4 b/m4/ax_cflags_strict_prototypes.m4 index 1bc5db4..1a910cf 100644 --- a/m4/ax_cflags_strict_prototypes.m4 +++ b/m4/ax_cflags_strict_prototypes.m4 @@ -32,33 +32,12 @@ # # Copyright (c) 2008 Guido U. Draheim <gui...@gmx.de> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 16 +#serial 18 AC_DEFUN([AX_FLAGS_STRICT_PROTOTYPES],[dnl AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl @@ -75,18 +54,18 @@ in "-pedantic -Werror % -fstrict-prototypes -Wstrict-prototypes" dnl GCC "-pedantic % -Wstrict-prototypes %% no, unsupported" dnl oops # do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[return 0;]])], + [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break], []) done case ".$VAR" in .|.no|.no,*) ;; *) # sanity check with signal() from sys/signal.h cp config.log config.tmp - AC_TRY_COMPILE([#include <signal.h>],[ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[ if (signal (SIGINT, SIG_IGN) == SIG_DFL) return 1; - if (signal (SIGINT, SIG_IGN) != SIG_DFL) return 2;], - dnl the original did use test -n `$CC testprogram.c` - [if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 + if (signal (SIGINT, SIG_IGN) != SIG_DFL) return 2;]])], + [dnl the original did use test -n `$CC testprogram.c` + if test `diff config.log config.tmp | grep -i warning | wc -l` != 0 then if test `diff config.log config.tmp | grep -i warning | wc -l` != 1 then VAR="no, suppressed, signal.h," ; fi ; fi], [VAR="no, suppressed, signal.h"]) diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 index dcabb92..bd753b3 100644 --- a/m4/ax_check_compile_flag.m4 +++ b/m4/ax_check_compile_flag.m4 @@ -29,33 +29,12 @@ # Copyright (c) 2008 Guido U. Draheim <gui...@gmx.de> # Copyright (c) 2011 Maarten Bosmans <mkbosm...@gmail.com> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 5 +#serial 6 AC_DEFUN([AX_CHECK_COMPILE_FLAG], [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF diff --git a/m4/ax_check_link_flag.m4 b/m4/ax_check_link_flag.m4 index 819409a..03a30ce 100644 --- a/m4/ax_check_link_flag.m4 +++ b/m4/ax_check_link_flag.m4 @@ -29,33 +29,12 @@ # Copyright (c) 2008 Guido U. Draheim <gui...@gmx.de> # Copyright (c) 2011 Maarten Bosmans <mkbosm...@gmail.com> # -# 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 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. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://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. +# 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 5 +#serial 6 AC_DEFUN([AX_CHECK_LINK_FLAG], [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF diff --git a/m4/ax_compiler_flags_cflags.m4 b/m4/ax_compiler_flags_cflags.m4 index aeb16e3..916f918 100644 --- a/m4/ax_compiler_flags_cflags.m4 +++ b/m4/ax_compiler_flags_cflags.m4 @@ -19,13 +19,14 @@ # LICENSE # # Copyright (c) 2014, 2015 Philip Withnall <phi...@tecnocode.co.uk> +# Copyright (c) 2017, 2018 Reini Urban <rur...@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 14 +#serial 17 AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[ AC_REQUIRE([AC_PROG_SED]) @@ -39,6 +40,13 @@ AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[ 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. @@ -64,23 +72,31 @@ AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[ ],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 - -Wnested-externs dnl -Wwrite-strings dnl -Wpointer-arith dnl -Wmissing-declarations dnl - -Wmissing-prototypes dnl - -Wstrict-prototypes dnl -Wredundant-decls dnl -Wno-unused-parameter dnl -Wno-missing-field-initializers dnl - -Wdeclaration-after-statement dnl -Wformat=2 dnl - -Wold-style-definition dnl -Wcast-align dnl -Wformat-nonliteral dnl -Wformat-security dnl @@ -96,10 +112,15 @@ AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[ -Wmissing-include-dirs dnl -Wunused-but-set-variable dnl -Warray-bounds dnl - -Wimplicit-function-declaration 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 $6 dnl diff --git a/m4/ax_compiler_flags_ldflags.m4 b/m4/ax_compiler_flags_ldflags.m4 index 842e329..976d119 100644 --- a/m4/ax_compiler_flags_ldflags.m4 +++ b/m4/ax_compiler_flags_ldflags.m4 @@ -19,13 +19,14 @@ # LICENSE # # Copyright (c) 2014, 2015 Philip Withnall <phi...@tecnocode.co.uk> +# Copyright (c) 2017, 2018 Reini Urban <rur...@cpan.org> # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 8 +#serial 9 AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[ AX_REQUIRE_DEFINED([AX_APPEND_LINK_FLAGS]) @@ -48,7 +49,25 @@ AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[ ax_compiler_flags_test="" ]) - # macOS linker does not have --as-needed + AX_CHECK_LINK_FLAG([-Wl,--as-needed], [ + AX_APPEND_LINK_FLAGS([-Wl,--as-needed], + [AM_LDFLAGS],[$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" ], [
