First I ever need to use the auto keyword...
void vlc_enable_override (void);
void vlc_enable_override (void);
-#if defined (__GNUC__) /* typeof and statement-expression */ \
+#if defined (__GNUC__) \
&& (defined (__ELF__) && !defined (__sun__))
/* Solaris crashes on printf("%s", NULL); which is legal, but annoying. */
&& (defined (__ELF__) && !defined (__sun__))
/* Solaris crashes on printf("%s", NULL); which is legal, but annoying. */
}
#define LOG(level, ...) logbug(level, __func__, __VA_ARGS__)
}
#define LOG(level, ...) logbug(level, __func__, __VA_ARGS__)
+/* Evil non-standard GNU C macro ;)
+ * typeof keyword,
+ * statement-expression,
+ * nested function...
+ */
#define CALL(func, ...) \
#define CALL(func, ...) \
- ({ typeof (func) *sym = getsym ( # func); sym (__VA_ARGS__); })
+({ \
+ static typeof (func) *sym = NULL; \
+ static pthread_once_t once = PTHREAD_ONCE_INIT; \
+ auto void getsym_once (void); \
+ void getsym_once (void) \
+ { \
+ sym = getsym ( # func); \
+ } \
+ pthread_once (&once, getsym_once); \
+ sym (__VA_ARGS__); \
+})