From c1a087a76d91665433f190d0468be2b33da443cd Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Thu, 26 Jul 2018 01:24:40 +0200
Subject: [PATCH] BaseTools/Source/C: take EXTRA_LDFLAGS from the caller

Allow the caller of the top-level makefile either to set EXTRA_LDFLAGS in
the environment or to pass EXTRA_LDFLAGS as a macro definition on the
command line. EXTRA_LDFLAGS extends (and potentially overrides) default
link-editing flags set in the makefiles.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1540244
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
(cherry picked from commit 81502cee20ac4046f08bb4aec754c7091c8808dc)
---
 BaseTools/Source/C/Makefiles/header.makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/BaseTools/Source/C/Makefiles/header.makefile b/BaseTools/Source/C/Makefiles/header.makefile
index 1b4cad5497..7f283d6464 100644
--- a/BaseTools/Source/C/Makefiles/header.makefile
+++ b/BaseTools/Source/C/Makefiles/header.makefile
@@ -99,6 +99,9 @@ endif
 BUILD_CFLAGS   += $(BUILD_OPTFLAGS)
 BUILD_CXXFLAGS += $(BUILD_OPTFLAGS)
   
+# keep EXTRA_LDFLAGS last
+BUILD_LFLAGS += $(EXTRA_LDFLAGS)
+
 .PHONY: all
 .PHONY: install
 .PHONY: clean