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configure.in: clock_gettime

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* configure.in (clock_gettime): should not overwrite cache variable
  with different condtion.  otherwise -lrt is not linked and the link
  fails, after reconfig.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42616 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-08-19 04:03:22 +00:00
parent 0a0c96308f
commit a3b4296369
2 changed files with 9 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Mon Aug 19 13:03:08 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* configure.in (clock_gettime): should not overwrite cache variable
with different condtion. otherwise -lrt is not linked and the link
fails, after reconfig.
Mon Aug 19 12:56:49 2013 Tanaka Akira <akr@fsij.org>
* process.c (Init_process): Add constants: CLOCK_REALTIME_ALARM and

5
configure.in
View File

@ -1860,8 +1860,9 @@ if test x"$ac_cv_func_clock_gettime" != xyes; then
# glibc 2.17 moves clock_* functions from librt to the main C library.
# http://sourceware.org/ml/libc-announce/2012/msg00001.html
AC_CHECK_LIB(rt, clock_gettime)
unset ac_cv_func_clock_gettime
AC_CHECK_FUNCS(clock_gettime)
if test x"$ac_cv_lib_rt_clock_gettime" = xyes; then
AC_DEFINE(HAVE_CLOCK_GETTIME, 1)
fi
fi
AC_CACHE_CHECK(for unsetenv returns a value, rb_cv_unsetenv_return_value,