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-rw-r--r--compat/compiler.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/compat/compiler.h b/compat/compiler.h
new file mode 100644
index 0000000000..c929573dd1
--- /dev/null
+++ b/compat/compiler.h
@@ -0,0 +1,24 @@
+#ifndef MPV_COMPILER_H
+#define MPV_COMPILER_H
+
+#define MP_EXPAND_ARGS(...) __VA_ARGS__
+
+#ifdef __GNUC__
+
+/** Use gcc attribute to check printf fns. a1 is the 1-based index of
+ * the parameter containing the format, and a2 the index of the first
+ * argument. **/
+#ifdef __MINGW32__
+// MinGW maps "printf" to the non-standard MSVCRT functions, even if
+// __USE_MINGW_ANSI_STDIO is defined and set to 1. We need to use "gnu_printf",
+// which isn't necessarily available on other GCC compatible compilers.
+#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
+#else
+#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (printf, a1, a2)))
+#endif
+
+#else
+#define PRINTF_ATTRIBUTE(a1, a2)
+#endif
+
+#endif