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D52933.1794768609.diff
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diff --git a/tools/build/cross-build/include/common/sys/cdefs.h b/tools/build/cross-build/include/common/sys/cdefs.h
--- a/tools/build/cross-build/include/common/sys/cdefs.h
+++ b/tools/build/cross-build/include/common/sys/cdefs.h
@@ -270,6 +270,16 @@
#define __ISO_C_VISIBLE 2011
#define __EXT1_VISIBLE 1
+/*
+ * Macro to test if we're using a specific version of gcc or later.
+ */
+#if defined(__GNUC__)
+#define __GNUC_PREREQ__(ma, mi) \
+ (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
+#else
+#define __GNUC_PREREQ__(ma, mi) 0
+#endif
+
/* Alignment builtins for better type checking and improved code generation. */
/* Provide fallback versions for other compilers (GCC/Clang < 10): */
#if !__has_builtin(__builtin_is_aligned)
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D52933: cross-build: Define __GNUC_PREREQ__ in cdefs.h
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