From: Chandler Carruth <chandlerc@gmail.com>
Date: Sat, 5 Jan 2013 00:29:06 +0000 (+0000)
Subject: Finally, fix the autoconf setup to allow for a missing clock_gettime;
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=234aaf08c8b81127a765b2d991cafe146502853c

Finally, fix the autoconf setup to allow for a missing clock_gettime;
the source code should now be set up to handle this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171570 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index fdda3f95671..c0af01a1e41 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1250,9 +1250,10 @@ AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
                [Define if dlopen() is available on this platform.]),
                AC_MSG_WARN([dlopen() not found - disabling plugin support]))
 
-dnl clock_gettime() is required for modern timing support.
-AC_SEARCH_LIBS(clock_gettime,rt,[],
-               AC_MSG_ERROR([clock_gettime not found and is required for modern POSIX timing uspport]))
+dnl Search for the clock_gettime() function. Note that we rely on the POSIX
+dnl macros to detect whether clock_gettime is available, dnl this just finds
+dnl the right libraries to link with.
+AC_SEARCH_LIBS(clock_gettime,rt)
 
 dnl libffi is optional; used to call external functions from the interpreter
 if test "$llvm_cv_enable_libffi" = "yes" ; then
diff --git a/configure b/configure
index 8e06154b98c..4392e976ae5 100755
--- a/configure
+++ b/configure
@@ -12614,10 +12614,6 @@ ac_res=$ac_cv_search_clock_gettime
 if test "$ac_res" != no; then
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
 
-else
-  { { echo "$as_me:$LINENO: error: clock_gettime not found and is required for modern POSIX timing uspport" >&5
-echo "$as_me: error: clock_gettime not found and is required for modern POSIX timing uspport" >&2;}
-   { (exit 1); exit 1; }; }
 fi