diff -ur gcc-10.2.0.orig/libgomp/libgomp.h gcc-10.2.0/libgomp/libgomp.h
--- gcc-10.2.0.orig/libgomp/libgomp.h	2021-05-12 11:35:02.852122961 -0400
+++ gcc-10.2.0/libgomp/libgomp.h	2021-05-12 11:37:05.593912873 -0400
@@ -69,6 +69,14 @@
 # endif
 #endif
 
+#include <stdio.h>
+#include <stdio.h>
+#ifdef __MINGW_PRINTF_FORMAT
+#define PRINTF_FORMAT __MINGW_PRINTF_FORMAT
+#else
+#define PRINTF_FORMAT printf
+#endif
+
 #ifdef HAVE_ATTRIBUTE_VISIBILITY
 # pragma GCC visibility push(hidden)
 #endif
@@ -173,7 +181,7 @@
 
 extern void gomp_vdebug (int, const char *, va_list);
 extern void gomp_debug (int, const char *, ...)
-	__attribute__ ((format (printf, 2, 3)));
+	__attribute__ ((format (PRINTF_FORMAT, 2, 3)));
 #define gomp_vdebug(KIND, FMT, VALIST) \
   do { \
     if (__builtin_expect (gomp_debug_var, 0)) \
@@ -186,11 +194,11 @@
   } while (0)
 extern void gomp_verror (const char *, va_list);
 extern void gomp_error (const char *, ...)
-	__attribute__ ((format (printf, 1, 2)));
+	__attribute__ ((format (PRINTF_FORMAT, 1, 2)));
 extern void gomp_vfatal (const char *, va_list)
 	__attribute__ ((noreturn));
 extern void gomp_fatal (const char *, ...)
-	__attribute__ ((noreturn, format (printf, 1, 2)));
+	__attribute__ ((noreturn, format (PRINTF_FORMAT, 1, 2)));
 
 struct gomp_task;
 struct gomp_taskgroup;