diff options
Diffstat (limited to 'm4/ax_gcc_func_attribute.m4')
| -rw-r--r-- | m4/ax_gcc_func_attribute.m4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/m4/ax_gcc_func_attribute.m4 b/m4/ax_gcc_func_attribute.m4 index 4e0ecbb56c5..2e67ea2926d 100644 --- a/m4/ax_gcc_func_attribute.m4 +++ b/m4/ax_gcc_func_attribute.m4 @@ -53,6 +53,7 @@ # optimize # packed # pure +# returns_nonnull # unused # used # visibility @@ -76,6 +77,9 @@ #serial 2 +# mattst88: +# Added support for returns_nonnull attribute + AC_DEFUN([AX_GCC_FUNC_ATTRIBUTE], [ AS_VAR_PUSHDEF([ac_var], [ax_cv_have_func_attribute_$1]) @@ -175,6 +179,9 @@ AC_DEFUN([AX_GCC_FUNC_ATTRIBUTE], [ [pure], [ int foo( void ) __attribute__(($1)); ], + [returns_nonnull], [ + int *foo( void ) __attribute__(($1)); + ], [unused], [ int foo( void ) __attribute__(($1)); ], |