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-rw-r--r--vm_debug.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/vm_debug.h b/vm_debug.h
index 5956105648..9c7fc65f7c 100644
--- a/vm_debug.h
+++ b/vm_debug.h
@@ -86,6 +86,15 @@ void ruby_debug_log(const char *file, int line, const char *func_name, const cha
void ruby_debug_log_print(unsigned int n);
bool ruby_debug_log_filter(const char *func_name, const char *file_name);
+#if RBIMPL_COMPILER_IS(GCC) && defined(__OPTIMIZE__)
+# define ruby_debug_log(...) \
+ RB_GNUC_EXTENSION_BLOCK( \
+ RBIMPL_WARNING_PUSH(); \
+ RBIMPL_WARNING_IGNORED(-Wformat-zero-length); \
+ ruby_debug_log(__VA_ARGS__); \
+ RBIMPL_WARNING_POP())
+#endif
+
// convenient macro to log even if the USE_RUBY_DEBUG_LOG macro is not specified.
// You can use this macro for temporary usage (you should not commit it).
#define _RUBY_DEBUG_LOG(...) ruby_debug_log(__FILE__, __LINE__, RUBY_FUNCTION_NAME_STRING, "" __VA_ARGS__)