diff options
| -rw-r--r-- | libopenjpeg/openjpeg.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libopenjpeg/openjpeg.h b/libopenjpeg/openjpeg.h index 6e56f51a..de1576ff 100644 --- a/libopenjpeg/openjpeg.h +++ b/libopenjpeg/openjpeg.h @@ -53,7 +53,14 @@ #endif #if defined(OPJ_STATIC) || !defined(_WIN32) +/* http://gcc.gnu.org/wiki/Visibility */ +#if __GNUC__ >= 4 +#define OPJ_API __attribute__ ((visibility ("default"))) +#define OPJ_LOCAL __attribute__ ((visibility ("hidden"))) +#else #define OPJ_API +#define OPJ_LOCAL +#endif #define OPJ_CALLCONV #else #define OPJ_CALLCONV __stdcall |