Remove -Werror from the C compiler flags used by ocamlc/ocamlopt when compiling a C source file.

The risk of breakage of 3rd-party libraries is too high.
There might be cleaner ways to achieve this effect, e.g. split BYTECCCOMPOPTS into BYTECCCOMPOPTS and BYTECCEXTRAWARNINGS.


git-svn-id: http://caml.inria.fr/svn/ocaml/branches/cc-optim@16337 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

Makefile

@@ -470,6 +470,7 @@ utils/config.ml: utils/config.mlp config/Makefile
 	    -e 's|%%CCOMPTYPE%%|cc|' \
 	    -e 's|%%BYTECC%%|$(BYTECC) $(BYTECCCOMPOPTS) $(SHAREDCCCOMPOPTS)|' \
 	    -e 's|%%NATIVECC%%|$(NATIVECC) $(NATIVECCCOMPOPTS)|' \
+            -e '/c_compiler =/s| -Werror||' \
 	    -e 's|%%PACKLD%%|$(PACKLD)|' \
 	    -e 's|%%BYTECCLIBS%%|$(BYTECCLIBS)|' \
 	    -e 's|%%NATIVECCLIBS%%|$(NATIVECCLIBS)|' \