For PR696:
Add checks for ceil, ceilf, floor, and floorf


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25453 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/configure b/configure
index fe357b2..9daf472 100755
--- a/configure
+++ b/configure
@@ -27752,7 +27752,10 @@
 
 
 
-for ac_func in backtrace getcwd getpagesize getrusage gettimeofday
+
+
+
+for ac_func in backtrace ceil ceilf floor floorf getcwd getpagesize getrusage
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -27857,7 +27860,8 @@
 
 
 
-for ac_func in isatty mkdtemp mkstemp mktemp
+
+for ac_func in gettimeofday isatty mkdtemp mkstemp mktemp
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5