buildroot

Minor build system fixes

​

Usual build system fixes to allow CC/CFLAGS/LDFLAGS to be overriden

from the command line, and completed by additional flags from the

Makefile.

​

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

​

Index: b/Makefile

===================================================================

--- a/Makefile

+++ b/Makefile

@@ -12,9 +12,10 @@

 #   (at your option) any later version.

 #

-CC      = gcc

-CFLAGS  = -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \

-          -Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef

+CC      ?= gcc

+override CFLAGS  += \

+   -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \

+        -Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef

 # Let lseek and mmap support 64-bit wide offsets

 CFLAGS += -D_FILE_OFFSET_BITS=64

@@ -27,7 +28,7 @@ CFLAGS += -O2

 #CFLAGS += -g

 # Pass linker flags here

-LDFLAGS =

+override LDFLAGS +=

 DESTDIR =

 prefix  = /usr/local