Try to fix OS X bustage.

extensions/transformiix/build/Makefile.in

@@ -145,6 +145,10 @@ EXTRA_DSO_LDOPTS += \
   $(MOZ_JS_LIBS) \
   $(NULL)
 
+ifdef BUILD_SHARED_LIBS
+FORCE_USE_PIC=1
+endif
+
 include $(topsrcdir)/config/rules.mk
 
 INCLUDES += -I$(srcdir)/../source/xslt -I$(srcdir)/../source/base \