No gengal.bin for iOS

Like any of our executables using <sal/main.h>, it doesn't even build
for iOS anyway using the current <sal/main.h> anyway, as there is no
main() ;) Executables for iOS (i.e. unit testers, and some eventual
end.userish apps) will be handled "semi-manually" in some yet to be
worked out fashion.

Makes no sense for Android either, but I'm lazy.

svx/Module_svx.mk

@@ -39,9 +39,14 @@ $(eval $(call gb_Module_add_targets,svx,\
     Package_globlmn_hrc \
     Package_inc \
     Package_sdi \
-    Package_gengal \
+))
+
+ifneq ($(OS),IOS)
+$(eval $(call gb_Module_add_targets,svx,\
     Executable_gengal.bin \
+    Package_gengal \
 ))
+endif
 
 $(eval $(call gb_Module_add_subsequentcheck_targets,svx,\
     JunitTest_svx_unoapi \