inteltool: Allow to override Makefile variables

Allow to override the variables `CC`, `INSTALL`, `PREFIX`,
`CFLAGS` and `LDFLAGS`. Though append `-lpci -lz` to `LDFLAGS`.

This way for example a different compiler can easily be used.

    CC=clang make

As a side note, Clang in contrast to GCC does *not* issue the
following warnings.

    $ clang --version
    Debian clang version 3.2-1~exp6 (tags/RELEASE_32/final) (based on LLVM 3.2)
    Target: i386-pc-linux-gnu
    Thread model: posix
    $ gcc --version
    gcc-4.7.real (Debian 4.7.2-15) 4.7.2
    Copyright (C) 2012 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    $ make
    […]
    amb.c: In function ‘amb_read_config32’:
    amb.c:31:23: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    amb.c:31:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    amb.c: In function ‘amb_read_config16’:
    amb.c:45:23: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    amb.c:45:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    amb.c: In function ‘amb_read_config8’:
    amb.c:60:22: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    amb.c:60:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
    […]

These are only shown under 32-bit and not 64-bit

    $ uname -m
    i686

and are going to be fixed in a separate patch.

Change-Id: Id75dea081ecb35390f283520a7e5dce520f4c98d
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2996
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Paul Menzel 2013-03-31 22:15:43 +02:00 committed by Stefan Reinauer
parent 42c5501c39
commit 9ebd8ea7cf
1 changed files with 6 additions and 6 deletions

View File

@ -21,17 +21,17 @@
PROGRAM = inteltool
CC = gcc
INSTALL = /usr/bin/install
PREFIX = /usr/local
CFLAGS = -O2 -g -Wall -W
LDFLAGS = -lpci -lz
CC ?= gcc
INSTALL ?= /usr/bin/install
PREFIX ?= /usr/local
CFLAGS ?= -O2 -g -Wall -W
LDFLAGS += -lpci -lz
OBJS = inteltool.o cpu.o gpio.o rootcmplx.o powermgt.o memory.o pcie.o amb.o
OS_ARCH = $(shell uname)
ifeq ($(OS_ARCH), Darwin)
LDFLAGS = -framework DirectHW -lpci -lz
LDFLAGS += -framework DirectHW
endif
ifeq ($(OS_ARCH), FreeBSD)
CFLAGS += -I/usr/local/include