Use _STRUCT_TIMESPEC as guard in <bits/types/struct_timespec.h> [BZ #23349]

After commit d76d3703551a362b472c866b5b6089f66f8daa8e ("Fix missing
timespec definition for sys/stat.h (BZ #21371)") in combination with
kernel UAPI changes, GCC sanitizer builds start to fail due to a
conflicting definition of struct timespec in <linux/time.h>.  Use
_STRUCT_TIMESPEC as the header file inclusion guard, which is already
checked in the kernel header, to support including <linux/time.h> and
<sys/stat.h> in the same translation unit.

diff --git a/ChangeLog b/ChangeLog
index 7a585e1..25e824f 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-06-28  Florian Weimer  <fweimer@redhat.com>
+
+       [BZ #23349]
+       * time/bits/types/struct_timespec.h: Change header inclusion guard to
+       _STRUCT_TIMESPEC.
+
 2018-06-28  Rajalakshmi Srinivasaraghavan  <raji@linux.vnet.ibm.com>
 
        * sysdeps/ieee754/ldbl-128ibm-compat/Versions: Add __strfromieee128,

diff --git a/time/bits/types/struct_timespec.h b/time/bits/types/struct_timespec.h
index 644db9f..5b77c52 100644 (file)
--- a/time/bits/types/struct_timespec.h
+++ b/time/bits/types/struct_timespec.h
@@ -1,5 +1,6 @@
-#ifndef __timespec_defined
-#define __timespec_defined 1
+/* NB: Include guard matches what <linux/time.h> uses.  */
+#ifndef _STRUCT_TIMESPEC
+#define _STRUCT_TIMESPEC 1
 
 #include <bits/types.h>