diff options
Diffstat (limited to 'pb_encode.c')
| -rw-r--r-- | pb_encode.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pb_encode.c b/pb_encode.c index 8868bb64..3fc03811 100644 --- a/pb_encode.c +++ b/pb_encode.c @@ -8,14 +8,14 @@ #include "pb_encode.h" #include <string.h> -#ifdef __GNUC__ -/* Verify that we remember to check all return values for proper error propagation */ -#define checkreturn __attribute__((warn_unused_result)) +/* The warn_unused_result attribute appeared first in gcc-3.4.0 */ +#if !defined(__GNUC__) || ( __GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 4) + #define checkreturn #else -#define checkreturn + /* Verify that we remember to check all return values for proper error propagation */ + #define checkreturn __attribute__((warn_unused_result)) #endif - typedef bool (*pb_encoder_t)(pb_ostream_t *stream, const pb_field_t *field, const void *src) checkreturn; /* --- Function pointers to field encoders --- |