40 lines
1.1 KiB
Makefile
40 lines
1.1 KiB
Makefile
# Makefile for toybox.
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# Copyright 2006 Rob Landley <rob@landley.net>
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CFLAGS = -Wall -Os -s
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CC = $(CROSS_COMPILE)gcc $(CFLAGS)
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HOST_CC = gcc $(CFLAGS)
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all: toybox
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.PHONY: clean
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include kconfig/Makefile
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.config: Config.in toys/Config.in
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# The long and roundabout sed is to make old versions of sed happy. New ones
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# have '\n' so can replace one line with two without all the branches and
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# mucking about with hold space.
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gen_config.h: .config
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sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
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-e 't notset' -e 'b tryisset' -e ':notset' \
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-e 'h' -e 's/.*/#define CFG_& 0/p' \
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-e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
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-e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
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-e 'h' -e 's/.*/#define CFG_& 1/p' \
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-e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
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# Actual build
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toyfiles = main.c toys/*.c lib/*.c
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toybox: gen_config.h $(toyfiles) lib/lib.h toys.h
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$(CC) -Wall -Os -s -funsigned-char $(CFLAGS) -I . \
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$(toyfiles) -o toybox -ffunction-sections -fdata-sections -Wl,--gc-sections
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clean::
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rm -f toybox gen_config.h
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distclean: clean
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rm -f .config
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