Zap toys/Config.in and instead create generated/Config.in from contents of

toys/*.c.  Move relevant info into comment at the top of each toys/*.c.  Also
convert more of Makefile into a thin wrapper around shell scripts that actually
do the work.  (Makefile is only still there for the user interface.)

1 files changed, 16 insertions, 46 deletions

diff --git a/Makefile b/Makefile
index 7e91ded4..b8936001 100644
--- a/Makefile
+++ b/Makefile
@@ -1,39 +1,21 @@
 # Makefile for toybox.
 # Copyright 2006 Rob Landley <rob@landley.net>
 
-CFLAGS  := $(CFLAGS) -Wall -Wundef -Wno-char-subscripts
-CCFLAGS = $(CFLAGS) -funsigned-char
-OPTIMIZE = -Os -ffunction-sections -fdata-sections -Wl,--gc-sections
-CC      = $(CROSS_COMPILE)gcc
-STRIP   = $(CROSS_COMPILE)strip
-HOSTCC  = gcc
-
-# A synonym.
-CROSS_COMPILE = $(CROSS)
-
 all: toybox
 
-.PHONY: clean distclean baseline bloatcheck install_flat test tests help
+toybox toybox_unstripped:
+	scripts/make.sh
 
-include kconfig/Makefile
+.PHONY: clean distclean baseline bloatcheck install_flat test tests help \
+	toybox toybox_unstripped
 
-# defconfig is the "maximum sane config"; allyesconfig minus debugging and such.
-#defconfig: allyesconfig
-#	@sed -i -r -e "s/^(CONFIG_TOYBOX_(DEBUG|FREE))=.*/# \1 is not set/" .config
+include kconfig/Makefile
 
-.config: Config.in toys/Config.in
+$(KCONFIG_TOP): generated/Config.in
+generated/Config.in:
+	scripts/genconfig.sh
 
-# The long and roundabout sed is to make old versions of sed happy.  New ones
-# have '\n' so can replace one line with two without all the branches and
-# mucking about with hold space.
-generated/gen_config.h: .config
-	sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
-	  -e 't notset' -e 'b tryisset' -e ':notset' \
-	  -e 'h' -e 's/.*/#define CFG_& 0/p' \
-	  -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
-	  -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
-	  -e 'h' -e 's/.*/#define CFG_& 1/p' \
-	  -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' $< > $@
+HOSTCC:=cc
 
 # Development targets
 baseline: toybox_unstripped
@@ -42,24 +24,6 @@ baseline: toybox_unstripped
 bloatcheck: toybox_old toybox_unstripped
 	@scripts/bloat-o-meter toybox_old toybox_unstripped
 
-# Get list of .c files to compile, including toys/*.c files from .config
-toyfiles = main.c lib/*.c \
-	$(shell scripts/cfg2files.sh < .config | sed 's@\(.*\)@toys/\1.c@')
-
-# The following still depends on generated/help.h even when it's not there, so
-# *.h isn't sufficient by itself.
-
-toybox_unstripped: generated/gen_config.h generated/help.h $(toyfiles) toys/toylist.h toys/*.h lib/*.h toys.h
-	$(CC) $(CCFLAGS) -I . $(toyfiles) -o toybox_unstripped $(OPTIMIZE)
-
-toybox: toybox_unstripped
-	$(STRIP) toybox_unstripped -o toybox
-
-toys/help.c: generated/help.h
-
-generated/help.h: Config.in toys/Config.in scripts/config2help.py
-	scripts/config2help.py Config.in > generated/help.h
-
 instlist: toybox
 	$(HOSTCC) $(CCFLAGS) -I . scripts/install.c -o instlist
 
@@ -69,7 +33,8 @@ install_flat: instlist
 	@for i in `./instlist`; do ln -s toybox "$(PREFIX)/$$i"; done
 
 clean::
-	rm -f toybox toybox_unstripped generated/gen_config.h instlist
+	rm -f toybox toybox_unstripped generated/config.h generated/Config.in \
+		instlist
 
 distclean: clean
 	rm -f toybox_old .config* generated/help.h
@@ -80,5 +45,10 @@ tests:
 	scripts/testall.sh
 
 help::
+	@echo  '  toybox          - Build toybox.'
 	@echo  '  baseline        - Create busybox_old for use by bloatcheck.'
 	@echo  '  bloatcheck      - Report size differences between old and current versions'
+	@echo  '  test            - Run test suite against compiled commands.'
+	@echo  '  clean           - Delete temporary files.'
+	@echo  '  distclean       - Delete everything that isn't shipped.'
+	@echo  '  install_flat    - Install toybox into $PREFIX directory.'