diff options
Diffstat (limited to 'lib/string.in.h')
| -rw-r--r-- | lib/string.in.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/string.in.h b/lib/string.in.h index 596c99bf2e2..96e132f37d7 100644 --- a/lib/string.in.h +++ b/lib/string.in.h @@ -54,10 +54,12 @@ /* The __attribute__ feature is available in gcc versions 2.5 and later. The attribute __pure__ was added in gcc 2.96. */ -#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) -# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) -#else -# define _GL_ATTRIBUTE_PURE /* empty */ +#ifndef _GL_ATTRIBUTE_PURE +# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) +# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +# else +# define _GL_ATTRIBUTE_PURE /* empty */ +# endif #endif /* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */ |