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* gethrxtime.m4 (gl_PREREQ_GETHRXTIME): Also check for CLOCK_REALTIME,

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since gethrxtime may revert to using clock_gettime via gettime.c.
Gabor Z. Papp reported that gethrxtime-using programs failed to
link due to unresolved clock_gettime on a linux-2.4.x system.
This commit is contained in:
Jim Meyering
2006-08-18 09:04:12 +00:00
parent 1ff9be72d4
commit 16901dd5fb
2 changed files with 14 additions and 14 deletions
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8
m4/ChangeLog
View File

@@ -1,9 +1,9 @@
2006-08-18 Jim Meyering <jim@meyering.net>
* gethrxtime.m4 (gl_PREREQ_GETHRXTIME): Reverse sense of test for
CLOCK_MONOTONIC. Otherwise, linking a gethrxtime-using program
with $(LIB_GETHRXTIME) could fail due to unresolved clock_gettime.
Reported by Gabor Z. Papp.
* gethrxtime.m4 (gl_PREREQ_GETHRXTIME): Also check for CLOCK_REALTIME,
since gethrxtime may revert to using clock_gettime via gettime.c.
Gabor Z. Papp reported that gethrxtime-using programs failed to
link due to unresolved clock_gettime on a linux-2.4.x system.
2006-08-17 Paul Eggert <eggert@cs.ucla.edu>

20
m4/gethrxtime.m4
View File

@@ -1,5 +1,5 @@
# gethrxtime.m4 serial 3
dnl Copyright (C) 2005 Free Software Foundation, Inc.
# gethrxtime.m4 serial 4
dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@@ -56,18 +56,18 @@ AC_DEFUN([gl_PREREQ_GETHRXTIME],
if test $ac_cv_func_nanouptime != yes; then
LIB_GETHRXTIME=
AC_CACHE_CHECK([whether CLOCK_MONOTONIC is defined],
gl_cv_have_CLOCK_MONOTONIC,
[AC_EGREP_CPP([have_CLOCK_MONOTONIC],
AC_CACHE_CHECK([whether CLOCK_MONOTONIC or CLOCK_REALTIME is defined],
gl_cv_have_clock_gettime_macro,
[AC_EGREP_CPP([have_clock_gettime_macro],
[
# include <time.h>
# ifdef CLOCK_MONOTONIC
have_CLOCK_MONOTONIC
# if defined CLOCK_MONOTONIC || defined CLOCK_REALTIME
have_clock_gettime_macro
# endif
],
gl_cv_have_CLOCK_MONOTONIC=yes,
gl_cv_have_CLOCK_MONOTONIC=no)])
if test $gl_cv_have_CLOCK_MONOTONIC = yes; then
gl_cv_have_clock_gettime_macro=yes,
gl_cv_have_clock_gettime_macro=no)])
if test $gl_cv_have_clock_gettime_macro = yes; then
LIB_GETHRXTIME=$LIB_CLOCK_GETTIME
fi
AC_SUBST([LIB_GETHRXTIME])