From ba61f3f36c53919494375adfe73420844e58e0de Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 25 Oct 2015 14:36:58 +0100
Subject: [PATCH] Re-add missing flags

---
 cmake/common/px4_base.cmake | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/cmake/common/px4_base.cmake b/cmake/common/px4_base.cmake
index 66ec86b848..26598fef70 100644
--- a/cmake/common/px4_base.cmake
+++ b/cmake/common/px4_base.cmake
@@ -633,10 +633,16 @@ function(px4_add_common_flags)
 		-DCONFIG_ARCH_BOARD_${board_config}
 		)
 
-
+	if (NOT ${CMAKE_C_COMPILER_ID} MATCHES ".*Clang.*")
+		set(added_exe_link_flags
+			-Wl,--warn-common
+			-Wl,--gc-sections
+			)
+	else()
 		set(added_exe_link_flags
 			-Wl,--warn-common
 			)
+	endif()
 
 	# output
 	foreach(var ${inout_vars})