#
# Makefile - Makefile of qpkg
#
# Written 2010 by Werner Almesberger
# Copyright 2010 by Werner Almesberger
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#

SHELL = /bin/bash

OBJS_qpkg = gobble.o id.o prereq.o qpkg.o jrb.o
OBJS_rbtest = rbtest.o jrb.o
OBJS = $(OBJS_qpkg) $(OBJS_rbtest)

CFLAGS = -Wall -Wshadow -Wmissing-prototypes -g -O
# -O, so that we get data flow analysis, which helps to find more bugs
#LDFLAGS=-pg

# ----- Verbosity control -----------------------------------------------------

CC_normal	:= $(CC)
DEPEND_normal	:= $(CPP) $(CFLAGS) -MM -MG

CC_quiet	= @echo "  CC       " $@ && $(CC_normal)
DEPEND_quiet	= @$(DEPEND_normal)

ifeq ($(V),1)
    CC		= $(CC_normal)
    DEPEND	= $(DEPEND_normal)
else
    CC		= $(CC_quiet)
    DEPEND	= $(DEPEND_quiet)
endif

# ----- Rules -----------------------------------------------------------------

.PHONY:		all jlime openwrt test tests valgrind clean spotless

all:		qpkg rbtest

jlime:
		$(MAKE) clean
		$(MAKE) CC_normal=mipsel-linux-gcc

#
# OpenWRT uses mipsel-openwrt-linux-* and mipsel-openwrt-linux-uclibc-*.
# They should both be available, but just in case, let's improve our odds
# of picking a compiler that actualy exists.
#

openwrt:
		$(MAKE) clean
		$(MAKE) CC_normal=$(shell \
		  n=`which mipsel-openwrt-linux-gcc`; \
		  echo "$${n:-`which mipsel-openwrt-linux-uclibc-gcc`}")

qpkg:		$(OBJS_qpkg)

rbtest:		$(OBJS_rbtest)

# ----- Tests -----------------------------------------------------------------

test tests:	all
		LANG= sh -c \
		  'passed=0 && cd test && \
		  for n in [a-z]*; do \
		  [ $$n != core ] && SCRIPT=$$n CWD_PREFIX=.. . ./$$n; done; \
		  echo "Passed all $$passed tests"'

valgrind:
		VALGRIND="valgrind -q" $(MAKE) tests

# ----- Cleanup ---------------------------------------------------------------

clean:
		rm -f $(OBJS) $(OBJS:.o=.d)

spotless:	clean
		rm -f qpkg rbtest

# ----- Dependencies ----------------------------------------------------------

# compile and generate dependencies, from fped, based on
# http://scottmcpeak.com/autodepend/autodepend.html

%.o:		%.c
		$(CC) -c $(CFLAGS) $*.c -o $*.o
		$(DEPEND) $*.c | \
		  sed -e \
		    '/^\(.*:\)\? */{p;s///;s/ *\\\?$$/ /;s/  */:\n/g;H;}' \
		    -e '$${g;p;}' -e d >$*.d; \
		  [ "$${PIPESTATUS[*]}" = "0 0" ] || { rm -f $*.d; exit 1; }

-include $(OBJS:.o=.d)