diff options
| author | Nick Wellnhofer <wellnhofer@aevum.de> | 2014-11-16 17:46:12 +0100 |
|---|---|---|
| committer | Nick Wellnhofer <wellnhofer@aevum.de> | 2014-11-16 22:17:36 +0100 |
| commit | cfa702b278c126ed3e5d0d34aa7ca018504edb96 (patch) | |
| tree | a69483e05df239fc69169b93ca6090d5fbfd68aa /src | |
| parent | c69654ce136fa6e7c097f9458ea999e66d6340bc (diff) | |
Feature test for GCC attributes
Diffstat (limited to 'src')
| -rw-r--r-- | src/CMakeLists.txt | 4 | ||||
| -rw-r--r-- | src/buffer.h | 2 | ||||
| -rw-r--r-- | src/config.h.in | 8 |
3 files changed, 13 insertions, 1 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index c5814e0..c399713 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -99,6 +99,10 @@ CHECK_INCLUDE_FILE(stdbool.h HAVE_STDBOOL_H) CHECK_C_SOURCE_COMPILES( "int main() { __builtin_expect(0,0); return 0; }" HAVE___BUILTIN_EXPECT) +CHECK_C_SOURCE_COMPILES(" + int f(void) __attribute__ (()); + int main() { return 0; } +" HAVE___ATTRIBUTE__) CONFIGURE_FILE( ${CMAKE_CURRENT_SOURCE_DIR}/config.h.in diff --git a/src/buffer.h b/src/buffer.h index d14b38e..acbead7 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -110,7 +110,7 @@ CMARK_EXPORT int cmark_strbuf_puts(cmark_strbuf *buf, const char *string); CMARK_EXPORT int cmark_strbuf_printf(cmark_strbuf *buf, const char *format, ...) - __attribute__((format (printf, 2, 3))); + CMARK_ATTRIBUTE((format (printf, 2, 3))); CMARK_EXPORT int cmark_strbuf_vprintf(cmark_strbuf *buf, const char *format, va_list ap); CMARK_EXPORT diff --git a/src/config.h.in b/src/config.h.in index bd39c4e..5294bc9 100644 --- a/src/config.h.in +++ b/src/config.h.in @@ -7,3 +7,11 @@ #endif #cmakedefine HAVE___BUILTIN_EXPECT + +#cmakedefine HAVE___ATTRIBUTE__ + +#ifdef HAVE___ATTRIBUTE__ + #define CMARK_ATTRIBUTE(list) __attribute__ (list) +#else + #define CMARK_ATTRIBUTE(list) +#endif |