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authorH.J. Lu <hjl.tools@gmail.com>2024-12-22 08:04:25 +0800
committerH.J. Lu <hjl.tools@gmail.com>2024-12-22 12:42:02 +0800
commita0704d9fc68a84f3e7d29179c3f907fe3f10b2c3 (patch)
treed67df1840e49c8d1978a924b2ae2c434fde93735 /configure.ac
parentfe925cb04585dd1cfca4094b255b3390bc56f770 (diff)
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Use -finput-charset=ascii only if supported
Check if -finput-charset=ascii is supported before using it in check-installed-headers.sh. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac20
1 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 85c92e5..6eaf83b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1527,6 +1527,26 @@ LIBC_CONFIG_VAR([cc-option-wimplicit-fallthrough],
[$libc_cv_cc_wimplicit_fallthrough])
AC_SUBST(libc_cv_test_cc_wimplicit_fallthrough)
+dnl Check if TEST_CC supports -finput-charset=ascii.
+LIBC_TRY_TEST_CC_OPTION([-finput-charset=ascii],
+ [-c -Werror -finput-charset=ascii],
+ libc_cv_test_cflags_finput_charset_ascii,
+ [libc_cv_test_cflags_finput_charset_ascii="-finput-charset=ascii"],
+ [libc_cv_test_cflags_finput_charset_ascii=]
+)
+LIBC_CONFIG_VAR(test-config-cflags-finput-charset-ascii,
+ $libc_cv_test_cflags_finput_charset_ascii)
+
+dnl Check if TEST_CXX supports -finput-charset=ascii.
+LIBC_TRY_TEST_CXX_OPTION([-finput-charset=ascii],
+ [-c -Werror -finput-charset=ascii],
+ libc_cv_test_cxxflags_finput_charset_ascii,
+ [libc_cv_test_cxxflags_finput_charset_ascii="-finput-charset=ascii"],
+ [libc_cv_test_cxxflags_finput_charset_ascii=]
+)
+LIBC_CONFIG_VAR(test-config-cxxflags-finput-charset-ascii,
+ $libc_cv_test_cxxflags_finput_charset_ascii)
+
dnl Check whether we have the gd library available.
AC_MSG_CHECKING(for libgd)
if test "$with_gd" != "no"; then