From cff9a64a48369222d27f615ce0d83c6426137ab8 Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Tue, 4 Oct 2016 17:01:29 -0700
Subject: [PATCH] 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
---
 core/config.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/config.mk b/core/config.mk
index da4784f172..e79a28ee41 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -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_