diff options
| author | Jonathan Nieder <jrnieder@gmail.com> | 2012-04-14 15:06:57 +0200 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2012-04-14 15:06:57 +0200 |
| commit | 8b63b48627961c0bf880eb4d57cf24d6a828dcd2 (patch) | |
| tree | ddc6989b9d2a6081bc115c2095bd3c2aba729e16 /m4/curl-compilers.m4 | |
| parent | b9ac64c2cb7965eae3dfa9fd1bf9a2bf04b1e2a5 (diff) | |
headers: surround GCC attribute names with double underscores
This protects from attribute names being defined by third party's code.
Improvement: http://curl.haxx.se/mail/lib-2012-04/0127.html
Diffstat (limited to 'm4/curl-compilers.m4')
| -rw-r--r-- | m4/curl-compilers.m4 | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4 index 9b212e462..fffe85f20 100644 --- a/m4/curl-compilers.m4 +++ b/m4/curl-compilers.m4 @@ -21,7 +21,7 @@ #*************************************************************************** # File version for 'aclocal' use. Keep it a single number. -# serial 59 +# serial 60 dnl CURL_CHECK_COMPILER @@ -1393,7 +1393,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_SYMBOL_HIDING], [ case "$compiler_id" in CLANG) dnl All versions of clang support -fvisibility= - tmp_EXTERN="__attribute__ ((visibility (\"default\")))" + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" tmp_CFLAGS="-fvisibility=hidden" supports_symbol_hiding="yes" ;; @@ -1401,7 +1401,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_SYMBOL_HIDING], [ dnl Only gcc 3.4 or later if test "$compiler_num" -ge "304"; then if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then - tmp_EXTERN="__attribute__ ((visibility (\"default\")))" + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" tmp_CFLAGS="-fvisibility=hidden" supports_symbol_hiding="yes" fi @@ -1420,7 +1420,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_SYMBOL_HIDING], [ printf("icc fvisibility bug test"); ]]) ],[ - tmp_EXTERN="__attribute__ ((visibility (\"default\")))" + tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))" tmp_CFLAGS="-fvisibility=hidden" supports_symbol_hiding="yes" ]) |