Index: btrfs-progs-v4.10.2/Makefile
===================================================================
--- btrfs-progs-v4.10.2.orig/Makefile
+++ btrfs-progs-v4.10.2/Makefile
@@ -341,25 +341,25 @@ $(lib_links):
 
 btrfs-%.static: btrfs-%.static.o $(static_objects) $(patsubst %.o,%.static.o,$(standalone_deps)) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $@.o $(static_objects) \
+	$(Q)$(CC) -o $@ $@.o $(static_objects) \
 		$(patsubst %.o, %.static.o, $($(subst -,_,$(subst .static,,$@)-objects))) \
 		$(static_libbtrfs_objects) $(STATIC_LDFLAGS) \
 		$($(subst -,_,$(subst .static,,$@)-libs)) $(STATIC_LIBS)
 
 btrfs-%: btrfs-%.o $(objects) $(standalone_deps) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $(objects) $@.o \
+	$(Q)$(CC) -o $@ $(objects) $@.o \
 		$($(subst -,_,$@-objects)) \
 		$(libs_static) \
 		$(LDFLAGS) $(LIBS) $($(subst -,_,$@-libs))
 
 btrfs: btrfs.o $(objects) $(cmds_objects) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS) $(LIBS_COMP)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS) $(LIBS_COMP)
 
 btrfs.static: btrfs.static.o $(static_objects) $(static_cmds_objects) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS) $(STATIC_LIBS_COMP)
+	$(Q)$(CC) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS) $(STATIC_LIBS_COMP)
 
 # For backward compatibility, 'btrfs' changes behaviour to fsck if it's named 'btrfsck'
 btrfsck: btrfs
@@ -372,43 +372,43 @@ btrfsck.static: btrfs.static
 
 mkfs.btrfs: $(mkfs_objects) $(objects) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS)
 
 mkfs.btrfs.static: $(static_mkfs_objects) $(static_objects) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS)
+	$(Q)$(CC) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS)
 
 btrfstune: btrfstune.o $(objects) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS)
 
 btrfstune.static: btrfstune.static.o $(static_objects) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS)
+	$(Q)$(CC) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS)
 
 btrfs-image: image/main.o $(objects) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS) $(LIBS_COMP)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS) $(LIBS_COMP)
 
 btrfs-image.static: image/main.static.o $(static_objects) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS) $(STATIC_LIBS_COMP)
+	$(Q)$(CC) -o $@ $^ $(STATIC_LDFLAGS) $(STATIC_LIBS) $(STATIC_LIBS_COMP)
 
 btrfs-convert: $(convert_objects) $(objects) $(libs_static)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(btrfs_convert_libs) $(LIBS)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(btrfs_convert_libs) $(LIBS)
 
 btrfs-convert.static: $(static_convert_objects) $(static_objects) $(static_libbtrfs_objects)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(STATIC_CFLAGS) -o $@ $^ $(STATIC_LDFLAGS) $(btrfs_convert_libs) $(STATIC_LIBS)
+	$(Q)$(CC) -o $@ $^ $(STATIC_LDFLAGS) $(btrfs_convert_libs) $(STATIC_LIBS)
 
 dir-test: dir-test.o $(objects) $(libs)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS)
 
 quick-test: quick-test.o $(objects) $(libs)
 	@echo "    [LD]     $@"
-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) $(LIBS)
+	$(Q)$(CC) -o $@ $^ $(LDFLAGS) $(LIBS)
 
 ioctl-test.o: ioctl-test.c ioctl.h kerncompat.h ctree.h
 	@echo "    [CC]   $@"
@@ -430,13 +430,13 @@ ioctl-test: ioctl-test.o
 
 ioctl-test-32: ioctl-test-32.o
 	@echo "    [LD32]   $@"
-	$(Q)$(CC) $(CFLAGS) -m32 -o $@ $< $(LDFLAGS)
+	$(Q)$(CC) -m32 -o $@ $< $(LDFLAGS)
 	@echo "   ?[PAHOLE] $@.pahole"
 	-$(Q)pahole $@ > $@.pahole
 
 ioctl-test-64: ioctl-test-64.o
 	@echo "    [LD64]   $@"
-	$(Q)$(CC) $(CFLAGS) -m64 -o $@ $< $(LDFLAGS)
+	$(Q)$(CC) -m64 -o $@ $< $(LDFLAGS)
 	@echo "   ?[PAHOLE] $@.pahole"
 	-$(Q)pahole $@ > $@.pahole