From bbf890fe27c4193752c4f455b01eae62dedab359 Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rbultje@google.com>
Date: Mon, 2 May 2011 13:56:41 -0400
Subject: [PATCH] build: change LDFLAGS/CFLAGS ordering.

Always use CFLAGS/LDFLAGS that point to headers and libvpx.a inside our
build tree before ones from the environment, which could reference
headers or libs outside the build tree.

This fixes issue 307.

Change-Id: I34d176b8c21098f6da5ea71f0147d3c49283cc45
---
 build/make/Makefile | 6 +++---
 examples.mk         | 7 ++++---
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/build/make/Makefile b/build/make/Makefile
index 64d3c934b..a951e99bc 100755
--- a/build/make/Makefile
+++ b/build/make/Makefile
@@ -98,11 +98,11 @@ install::
 $(BUILD_PFX)%.c.d: %.c
 	$(if $(quiet),@echo "    [DEP] $@")
 	$(qexec)mkdir -p $(dir $@)
-	$(qexec)$(CC) $(CFLAGS) -M $< | $(fmt_deps) > $@
+	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -M $< | $(fmt_deps) > $@
 
 $(BUILD_PFX)%.c.o: %.c
 	$(if $(quiet),@echo "    [CC] $@")
-	$(qexec)$(CC) $(CFLAGS) -c -o $@ $<
+	$(qexec)$(CC) $(INTERNAL_CFLAGS) $(CFLAGS) -c -o $@ $<
 
 $(BUILD_PFX)%.asm.d: %.asm
 	$(if $(quiet),@echo "    [DEP] $@")
@@ -188,7 +188,7 @@ define linker_template
 $(1): $(filter-out -%,$(2))
 $(1):
 	$(if $(quiet),@echo    "    [LD] $$@")
-	$(qexec)$$(LD) $$(strip $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))
+	$(qexec)$$(LD) $$(strip $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))
 endef
 # make-3.80 has a bug with expanding large input strings to the eval function,
 # which was triggered in some cases by the following component of
diff --git a/examples.mk b/examples.mk
index 89c93db62..3e34b5697 100644
--- a/examples.mk
+++ b/examples.mk
@@ -122,8 +122,8 @@ else
     LIB_PATH := $(call enabled,LIB_PATH)
     INC_PATH := $(call enabled,INC_PATH)
 endif
-CFLAGS += $(addprefix -I,$(INC_PATH))
-LDFLAGS += $(addprefix -L,$(LIB_PATH))
+INTERNAL_CFLAGS = $(addprefix -I,$(INC_PATH))
+INTERNAL_LDFLAGS += $(addprefix -L,$(LIB_PATH))
 
 
 # Expand list of selected examples to build (as specified above)
@@ -214,7 +214,8 @@ $(1): $($(1:.vcproj=).SRCS)
             --ver=$$(CONFIG_VS_VERSION)\
             --proj-guid=$$($$(@:.vcproj=).GUID)\
             $$(if $$(CONFIG_STATIC_MSVCRT),--static-crt) \
-            --out=$$@ $$(CFLAGS) $$(LDFLAGS) -l$$(CODEC_LIB) -lwinmm $$^
+            --out=$$@ $$(INTERNAL_CFLAGS) $$(CFLAGS) \
+            $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -l$$(CODEC_LIB) -lwinmm $$^
 endef
 PROJECTS-$(CONFIG_MSVS) += $(ALL_EXAMPLES:.c=.vcproj)
 INSTALL-BINS-$(CONFIG_MSVS) += $(foreach p,$(VS_PLATFORMS),\