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Linux: only include cred.h if it exists

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Commit c89fd17df1032ec2eacc0d0c9b73e19c5e8db7d2 introduced an explicit
include of linux/cred.h since the latest kernel no longer includes it
implicitly in sched.h. Alas, older kernels (like 2.6.18) don't have this
file. Add a configure test for the existence of cred.h and only include
it if actually present.

Change-Id: Ia7e38160492b1e03cdb257e4b2bef4d18c4a28fb
Reviewed-on: https://gerrit.openafs.org/12593
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
This commit is contained in:
Stephan Wiesand 2017-04-11 11:58:55 +02:00 committed by Benjamin Kaduk
parent c89fd17df1
commit 6b7b4239ab
2 changed files with 4 additions and 1 deletions
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1
acinclude.m4
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@ -931,6 +931,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
unsigned int flags])
dnl Check for header files
AC_CHECK_LINUX_HEADER([cred.h])
AC_CHECK_LINUX_HEADER([config.h])
AC_CHECK_LINUX_HEADER([exportfs.h])
AC_CHECK_LINUX_HEADER([freezer.h])

4
src/afs/LINUX/osi_machdep.h
View File

@ -71,8 +71,10 @@
#define afs_hz HZ
#include "h/sched.h"
/* in case cred.h is not included in sched.h */
/* in case cred.h is present but not included in sched.h */
#if defined(HAVE_LINUX_CRED_H)
#include "h/cred.h"
#endif
#if defined(HAVE_LINUX_CURRENT_KERNEL_TIME)
static inline time_t osi_Time(void) {
struct timespec xtime;