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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.

Reviewed-on: https://gerrit.openafs.org/12593
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
(cherry picked from commit 6b7b4239ab22fbb301e3b50e2ca4072445ba4e9e)

Change-Id: I64970ba471180d32fa5af5445e7604bbe8511b32
Reviewed-on: https://gerrit.openafs.org/12598
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
This commit is contained in:
Stephan Wiesand 2017-04-11 11:58:55 +02:00
parent f7c0c066f4
commit 2c06cc8e40
2 changed files with 4 additions and 1 deletions
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1
acinclude.m4
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@ -868,6 +868,7 @@ 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([completion.h])
AC_CHECK_LINUX_HEADER([exportfs.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;