Fix empty mac .toc generation

If a shared library has no exported symbols grep will return exit code
1 meaning no matches, but this should not be considered an error
during toc generation.

Test: external/clang/build.py
Change-Id: If589da38ad8b844fe1aff4738481cebea75cca42

parent 70209ad9

core/config.mk

+1 −1

Original line number	Diff line number	Diff line
		@@ -225,7 +225,7 @@ endef
		# Commands to generate .toc file from Darwin dynamic library.
		define _gen_toc_command_for_macho
		$(hide) otool -l $(1) \| grep LC_ID_DYLIB -A 5 > $(2)
		$(hide) nm -gP $(1) \| cut -f1-2 -d" " \| grep -v U$$ >> $(2)
		$(hide) nm -gP $(1) \| cut -f1-2 -d" " \| (grep -v U$$ >> $(2) \|\| true)
		endef

		combo_target := HOST_