X-Git-Url: https://git.distorted.org.uk/~mdw/dvdrip/blobdiff_plain/293c860fcf90af73fe953022578e244ac1cea22a..refs/heads/mdw/cleanup:/multiprogress.h

diff --git a/multiprogress.h b/multiprogress.h
index e6f96f8..4a0d114 100644
--- a/multiprogress.h
+++ b/multiprogress.h
@@ -29,6 +29,18 @@
 #include <stdio.h>
 #include <sys/time.h>
 
+/*----- Compiler-specific magic -------------------------------------------*/
+
+#if (defined(__GNUC__) && (__GNUC__ > 2 ||				\
+			   (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))) ||	\
+    (defined(__clang__) && (__clang_major__ > 3 || \
+			    (__clang_major__ == 3 && __clang_minor__ >= 3)))
+#  define MULTIPROGRESS__PRINTF_LIKE(farg, aarg)			\
+	__attribute__((format(printf, farg, aarg)))
+#else
+#  define MULTIPROGRESS__PRINTF_LIKE(farg, aarg)
+#endif
+
 /*----- Data structures ---------------------------------------------------*/
 
 struct progress_ttyinfo {
@@ -165,10 +177,10 @@ extern int progress_vputleft(struct progress_render_state */*render*/,
 			     const char */*fmt*/, va_list /*ap*/);
 extern int progress_vputright(struct progress_render_state */*render*/,
 			      const char */*fmt*/, va_list /*ap*/);
-__attribute__((format(printf, 2, 3)))
+MULTIPROGRESS__PRINTF_LIKE(2, 3)
 extern int progress_putleft(struct progress_render_state */*render*/,
 			    const char */*fmt*/, ...);
-__attribute__((format(printf, 2, 3)))
+MULTIPROGRESS__PRINTF_LIKE(2, 3)
 extern int progress_putright(struct progress_render_state */*render*/,
 			     const char */*fmt*/, ...);
 	/* Format the `printf'-style string FMT with the supplied arguments