diff options
Diffstat (limited to 'm4/gnulib-common.m4')
| -rw-r--r-- | m4/gnulib-common.m4 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index 1bb316bb157..35f6195204e 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -50,7 +50,8 @@ AC_DEFUN([gl_COMMON_BODY], [ #define _UNUSED_PARAMETER_ _GL_UNUSED /* gcc supports the "unused" attribute on possibly unused labels, and - g++ has since version 4.5. */ + g++ has since version 4.5. Note to support C++ as well as C, + _GL_UNUSED_LABEL should be used with a trailing ; */ #if !defined __cplusplus || __GNUC__ > 4 \ || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) # define _GL_UNUSED_LABEL _GL_UNUSED |