Add a -Wno-long-double flag to the compile flags on Mac OS X. Fixes bug
525481. (Probably not a 2.2.1 candidate, unless the fix that introduced a
long double into objimpl.h (rev. 2.44) is backported to 2.2.1).
diff --git a/configure.in b/configure.in
index 56e3fae..3bdb667 100644
--- a/configure.in
+++ b/configure.in
@@ -398,7 +398,7 @@
     esac
     case $ac_sys_system in
     Darwin*)
-    	OPT="$OPT -no-cpp-precomp";;
+    	OPT="$OPT -Wno-long-double -no-cpp-precomp";;
     esac
 fi