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[PATCH] <sys/cdefs.h>: Add __glibc_has_include macro
- From: Florian Weimer <fweimer at redhat dot com>
- To: libc-alpha at sourceware dot org
- Date: Wed, 05 Jun 2019 15:43:16 +0200
- Subject: [PATCH] <sys/cdefs.h>: Add __glibc_has_include macro
2019-06-05 Florian Weimer <fweimer@redhat.com>
* misc/sys/cdefs.h (__glibc_has_include): Define.
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index b1695376dc..638872b87b 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -412,6 +412,12 @@
# define __glibc_has_attribute(attr) 0
#endif
+#ifdef __has_include
+# define __glibc_has_include(header) __has_include (header)
+#else
+# define __glibc_has_include(header) 0
+#endif
+
#if (!defined _Noreturn \
&& (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
&& !__GNUC_PREREQ (4,7))