--- bridge-utils-1.5/libbridge/Makefile.in.orig 2015-07-21 13:09:20.270079468 +0100 +++ bridge-utils-1.5/libbridge/Makefile.in 2015-07-21 13:09:39.382036853 +0100 @@ -5,7 +5,7 @@ RANLIB=@RANLIB@ CC=@CC@ -CFLAGS = -Wall -g $(KERNEL_HEADERS) +CFLAGS = @CFLAGS@ -g $(KERNEL_HEADERS) prefix=@prefix@ exec_prefix=@exec_prefix@