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authorFlorian Weimer <fweimer@redhat.com>2019-06-12 10:41:19 +0200
committerFlorian Weimer <fweimer@redhat.com>2019-06-12 13:04:43 +0200
commit4e75c2a43bb3208f32556a2b19c939cfe1f54ba6 (patch)
tree029d589ee5e29658f67f84d67734e206562bb190
parent680942b0167715e123d934b609060cd382f8e39f (diff)
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<sys/cdefs.h>: Add __glibc_has_include macro
-rw-r--r--ChangeLog4
-rw-r--r--misc/sys/cdefs.h6
2 files changed, 10 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 01fc0988654..00330231791 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2019-06-12 Florian Weimer <fweimer@redhat.com>
+
+ * misc/sys/cdefs.h (__glibc_has_include): Define.
+
2019-06-12 Wilco Dijkstra <wdijkstr@arm.com>
* string/memmem.c (__memmem): Rewrite to improve performance.
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index b1695376dc0..638872b87b5 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))