From 93d261a558238464a4dec85afabe0b26ac7b05c7 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Tue, 26 Apr 2016 13:04:58 -0400
Subject: [PATCH] cmake fix px4_base linker flags

---
 cmake/common/px4_base.cmake | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/cmake/common/px4_base.cmake b/cmake/common/px4_base.cmake
index 30ccd86b5d..22bcde71f2 100644
--- a/cmake/common/px4_base.cmake
+++ b/cmake/common/px4_base.cmake
@@ -566,6 +566,7 @@ function(px4_add_common_flags)
 		# QuRT 6.4.X compiler identifies as Clang but does not support this option
 		if (NOT ${OS} STREQUAL "qurt")
 			list(APPEND warnings
+				-Qunused-arguments
 				-Wno-unused-const-variable
 				-Wno-varargs
 			)
@@ -701,14 +702,11 @@ function(px4_add_common_flags)
 		-DCONFIG_ARCH_BOARD_${board_config}
 		)
 
-	if (NOT ${CMAKE_C_COMPILER_ID} MATCHES ".*Clang.*")
-		set(added_exe_link_flags
+	if (NOT (APPLE AND (${CMAKE_C_COMPILER_ID} MATCHES ".*Clang.*")))
+		set(added_exe_linker_flags
 			-Wl,--warn-common
 			-Wl,--gc-sections
-			)
-	else()
-		set(added_exe_link_flags
-			-Wl,--warn-common
+			#,--print-gc-sections 
 			)
 	endif()