Add a check to see if HUGE_VAL is sane or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31416 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile.config.in b/Makefile.config.in
index c723906..7ed58f7 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -240,3 +240,7 @@
 # available to those loadable modules.
 LINKALL := @LINKALL@
 NOLINKALL := @NOLINKALL@
+
+# Get the value of HUGE_VAL_SANITY which will be either "yes" or "no" depending
+# on the check.
+HUGE_VAL_SANITY = @HUGE_VAL_SANITY@