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/autoconf/configure.ac b/autoconf/configure.ac
index 9d101c8..78cb86d 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -630,6 +630,7 @@
 dnl===
 dnl===-----------------------------------------------------------------------===
 
+AC_HUGE_VAL_CHECK
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
 AC_TYPE_SIGNAL