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[tor-commits] [tor] branch main updated: added check for compiler support of Wextra-semi
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dgoulet pushed a commit to branch main
in repository tor.
The following commit(s) were added to refs/heads/main by this push:
new 1bb386a759 added check for compiler support of Wextra-semi
new 863428d753 Merge branch 'tor-gitlab/mr/627'
1bb386a759 is described below
commit 1bb386a759a67c95d12fa1165332d1e1afbb5f1c
Author: Andy <andy@xxxxxxxxxxxxxxxxx>
AuthorDate: Thu Oct 13 16:35:19 2022 -0600
added check for compiler support of Wextra-semi
update AX_CHECK_COMPILE_FLAG function call
---
configure.ac | 3 ++-
m4/ax_check_compile_flag.m4 | 51 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 53 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 6ab7903010..74ea8050ed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2357,7 +2357,6 @@ if test "x$enable_gcc_warnings_advisory" != "xno"; then
-Wexplicit-ownership-type
-Wextern-initializer
-Wextra
- -Wextra-semi
-Wextra-tokens
-Wflexible-array-extensions
-Wfloat-conversion
@@ -2504,6 +2503,8 @@ if test "x$enable_gcc_warnings_advisory" != "xno"; then
], [ TOR_TRY_COMPILE_WITH_CFLAGS(warning_flag, [],
[TOR_WARNING_FLAGS="$TOR_WARNING_FLAGS warning_flag" CFLAGS="$CFLAGS warning_flag"], true)
])
+
+ AX_CHECK_COMPILE_FLAG([-Wextra-semi], [CFLAGS="$CFLAGS -Wextra-semi"], [], [-Werror])
dnl We should re-enable this in some later version. Clang doesn't
dnl mind, but it causes trouble with GCC.
diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
new file mode 100644
index 0000000000..95df39679e
--- /dev/null
+++ b/m4/ax_check_compile_flag.m4
@@ -0,0 +1,51 @@
+ # Copyright (c) 2008 Guido U. Draheim <guidod@xxxxxx>
+ # Copyright (c) 2011 Maarten Bosmans <mkbosmans@xxxxxxxxx>
+ #
+ # 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
+AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
+ _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+ 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
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