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authorMichał Górny <mgorny@gentoo.org>2019-01-13 12:33:24 +0100
committerMichał Górny <mgorny@gentoo.org>2019-01-13 12:38:51 +0100
commitab30b4c73772c4b98a0d36e0f290f60bc8f16907 (patch)
tree573328f8da3e289255a6ac4589d91e3a0168cca2
parentFlatten data, etc & scripts Makefiles (diff)
downloadsandbox-master.tar.gz
sandbox-master.tar.bz2
sandbox-master.zip
m4: ax_* update via autogen.shHEADmaster
Signed-off-by: Michał Górny <mgorny@gentoo.org>
-rw-r--r--m4/ax_append_compile_flags.m431
-rw-r--r--m4/ax_append_flag.m431
-rw-r--r--m4/ax_append_link_flags.m431
-rw-r--r--m4/ax_cflags_force_c89.m441
-rw-r--r--m4/ax_cflags_no_writable_strings.m442
-rw-r--r--m4/ax_cflags_strict_prototypes.m443
-rw-r--r--m4/ax_check_compile_flag.m431
-rw-r--r--m4/ax_check_link_flag.m431
-rw-r--r--m4/ax_compiler_flags_cflags.m435
-rw-r--r--m4/ax_compiler_flags_ldflags.m423
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 <mkbosmans@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 <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@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 <mkbosmans@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 <guidod@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 <guidod@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 <guidod@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 <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@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 <guidod@gmx.de>
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@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 <philip@tecnocode.co.uk>
+# Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 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
$6 dnl
diff --git a/m4/ax_compiler_flags_ldflags.m4 b/m4/ax_compiler_flags_ldflags.m4
index 842e329..976d119 100644
--- a/m4/ax_compiler_flags_ldflags.m4
+++ b/m4/ax_compiler_flags_ldflags.m4
@@ -19,13 +19,14 @@
# LICENSE
#
# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk>
+# Copyright (c) 2017, 2018 Reini Urban <rurban@cpan.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 8
+#serial 9
AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[
AX_REQUIRE_DEFINED([AX_APPEND_LINK_FLAGS])
@@ -48,7 +49,25 @@ AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[
ax_compiler_flags_test=""
])
- # macOS linker does not have --as-needed
+ AX_CHECK_LINK_FLAG([-Wl,--as-needed], [
+ AX_APPEND_LINK_FLAGS([-Wl,--as-needed],
+ [AM_LDFLAGS],[$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"
], [