"-lm" is a symlink to libSystem.dylib on all recent Darwin and
therefore not required (as libSystem is automatically provided by gcc).
Using -lm (especially when in conjunction with "-flat_namespace") can
cause unexpected differences in behavior between Darwin 9 -> Darwin10
(where the unwinder was moved to libSystem) - since it causes
libSystem to be placed ahead of other libs.
- I guess it could be a config subsitution if anyone thinks it worth
it for (really) ancient Darwin support - but I've just removed it.
(no Ada regressions from this on *-darwin9 and x86-64-darwin10.)
OK for trunk?
Iain
ada:
* gcc-interface/Makefile.in (gnatlib-shared-darwin): Remove
reference to "-lm".
diff --git a/gcc/ada/gcc-interface/Makefile.in
b/gcc/ada/gcc-interface/Makefile.in
index 4be366e..8974a99 100644
--- a/gcc/ada/gcc-interface/Makefile.in
+++ b/gcc/ada/gcc-interface/Makefile.in
@@ -2664,7 +2666,7 @@ gnatlib-shared-darwin:
$(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS) \
$(SO_OPTS) \
-Wl,-install_name,@rpath/libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \
- $(MISCLIB) -lm
+ $(MISCLIB)
cd $(RTSDIR); `echo "$(GCC_FOR_TARGET)" \
| sed -e 's,\./xgcc,../../xgcc,' -e 's,-B\./,-B../../,'`
-dynamiclib $(PICFLAG_FOR_TARGET) \
-o libgnarl$(hyphen)$(LIBRARY_VERSION)$(soext) \
