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kernel-ark/scripts/kconfig/Makefile
Paul Smith 4f1933620f kbuild: change kbuild to not rely on incorrect GNU make behavior 
The kbuild system takes advantage of an incorrect behavior in GNU make.
Once this behavior is fixed, all files in the kernel rebuild every time,
even if nothing has changed.  This patch ensures kbuild works with both
the incorrect and correct behaviors of GNU make.

For more details on the incorrect behavior, see:

http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html

Changes in this patch:
  - Keep all targets that are to be marked .PHONY in a variable, PHONY.
  - Add .PHONY: $(PHONY) to mark them properly.
  - Remove any $(PHONY) files from the $? list when determining whether
    targets are up-to-date or not.

Signed-off-by: Paul Smith <psmith@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-03-06 00:09:51 +01:00

255 lines
7.7 KiB
Makefile
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# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config
xconfig: $(obj)/qconf
$< arch/$(ARCH)/Kconfig
gconfig: $(obj)/gconf
$< arch/$(ARCH)/Kconfig
menuconfig: $(obj)/mconf
$(Q)$(MAKE) $(build)=scripts/kconfig/lxdialog
$< arch/$(ARCH)/Kconfig
config: $(obj)/conf
$< arch/$(ARCH)/Kconfig
oldconfig: $(obj)/conf
$< -o arch/$(ARCH)/Kconfig
silentoldconfig: $(obj)/conf
$< -s arch/$(ARCH)/Kconfig
update-po-config: $(obj)/kxgettext
xgettext --default-domain=linux \
--add-comments --keyword=_ --keyword=N_ \
--files-from=scripts/kconfig/POTFILES.in \
--output scripts/kconfig/config.pot
$(Q)ln -fs Kconfig_i386 arch/um/Kconfig_arch
$(Q)for i in `ls arch/`; \
do \
scripts/kconfig/kxgettext arch/$$i/Kconfig \
| msguniq -o scripts/kconfig/linux_$${i}.pot; \
done
$(Q)msgcat scripts/kconfig/config.pot \
`find scripts/kconfig/ -type f -name linux_*.pot` \
--output scripts/kconfig/linux_raw.pot
$(Q)msguniq --sort-by-file scripts/kconfig/linux_raw.pot \
--output scripts/kconfig/linux.pot
$(Q)rm -f arch/um/Kconfig_arch
$(Q)rm -f scripts/kconfig/linux_*.pot scripts/kconfig/config.pot
PHONY += randconfig allyesconfig allnoconfig allmodconfig defconfig
randconfig: $(obj)/conf
$< -r arch/$(ARCH)/Kconfig
allyesconfig: $(obj)/conf
$< -y arch/$(ARCH)/Kconfig
allnoconfig: $(obj)/conf
$< -n arch/$(ARCH)/Kconfig
allmodconfig: $(obj)/conf
$< -m arch/$(ARCH)/Kconfig
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
$< -d arch/$(ARCH)/Kconfig
else
@echo *** Default configuration is based on '$(KBUILD_DEFCONFIG)'
$(Q)$< -D arch/$(ARCH)/configs/$(KBUILD_DEFCONFIG) arch/$(ARCH)/Kconfig
endif
%_defconfig: $(obj)/conf
$(Q)$< -D arch/$(ARCH)/configs/$@ arch/$(ARCH)/Kconfig
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@echo ' menuconfig - Update current config utilising a menu based program'
@echo ' xconfig - Update current config utilising a QT based front-end'
@echo ' gconfig - Update current config utilising a GTK based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' randconfig - New config with random answer to all options'
@echo ' defconfig - New config with default answer to all options'
@echo ' allmodconfig - New config selecting modules when possible'
@echo ' allyesconfig - New config where all options are accepted with yes'
@echo ' allnoconfig - New config where all options are answered with no'
# ===========================================================================
# Shared Makefile for the various kconfig executables:
# conf: Used for defconfig, oldconfig and related targets
# mconf: Used for the mconfig target.
# Utilizes the lxdialog package
# qconf: Used for the xconfig target
# Based on QT which needs to be installed to compile it
# gconf: Used for the gconfig target
# Based on GTK which needs to be installed to compile it
# object files used by all kconfig flavours
hostprogs-y := conf mconf qconf gconf kxgettext
conf-objs := conf.o zconf.tab.o
mconf-objs := mconf.o zconf.tab.o
kxgettext-objs := kxgettext.o zconf.tab.o
ifeq ($(MAKECMDGOALS),xconfig)
qconf-target := 1
endif
ifeq ($(MAKECMDGOALS),gconfig)
gconf-target := 1
endif
ifeq ($(qconf-target),1)
qconf-cxxobjs := qconf.o
qconf-objs := kconfig_load.o zconf.tab.o
endif
ifeq ($(gconf-target),1)
gconf-objs := gconf.o kconfig_load.o zconf.tab.o
endif
clean-files := lkc_defs.h qconf.moc .tmp_qtcheck \
.tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c
subdir- += lxdialog
# Needed for systems without gettext
KBUILD_HAVE_NLS := $(shell \
if echo "\#include <libintl.h>" | $(HOSTCC) $(HOSTCFLAGS) -E - > /dev/null 2>&1 ; \
then echo yes ; \
else echo no ; fi)
ifeq ($(KBUILD_HAVE_NLS),no)
HOSTCFLAGS += -DKBUILD_NO_NLS
endif
# generated files seem to need this to find local include files
HOSTCFLAGS_lex.zconf.o := -I$(src)
HOSTCFLAGS_zconf.tab.o := -I$(src)
HOSTLOADLIBES_qconf = $(KC_QT_LIBS) -ldl
HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
-D LKC_DIRECT_LINK
$(obj)/qconf.o: $(obj)/.tmp_qtcheck
ifeq ($(qconf-target),1)
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
# QT needs some extra effort...
$(obj)/.tmp_qtcheck:
@set -e; echo " CHECK qt"; dir=""; pkg=""; \
pkg-config --exists qt 2> /dev/null && pkg=qt; \
pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
if [ -n "$$pkg" ]; then \
cflags="\$$(shell pkg-config $$pkg --cflags)"; \
libs="\$$(shell pkg-config $$pkg --libs)"; \
moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
dir="$$(pkg-config $$pkg --variable=prefix)"; \
else \
for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
done; \
if [ -z "$$dir" ]; then \
echo "*"; \
echo "* Unable to find the QT installation. Please make sure that"; \
echo "* the QT development package is correctly installed and"; \
echo "* either install pkg-config or set the QTDIR environment"; \
echo "* variable to the correct location."; \
echo "*"; \
false; \
fi; \
libpath=$$dir/lib; lib=qt; osdir=""; \
$(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
test -f $$libpath/libqt-mt.so && lib=qt-mt; \
cflags="-I$$dir/include"; \
libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
moc="$$dir/bin/moc"; \
fi; \
if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
echo "*"; \
echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc instead."; \
echo "*"; \
moc="/usr/bin/moc"; \
fi; \
echo "KC_QT_CFLAGS=$$cflags" > $@; \
echo "KC_QT_LIBS=$$libs" >> $@; \
echo "KC_QT_MOC=$$moc" >> $@
endif
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
ifeq ($(gconf-target),1)
-include $(obj)/.tmp_gtkcheck
# GTK needs some extra effort, too...
$(obj)/.tmp_gtkcheck:
@if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
touch $@; \
else \
echo "*"; \
echo "* GTK+ is present but version >= 2.0.0 is required."; \
echo "*"; \
false; \
fi \
else \
echo "*"; \
echo "* Unable to find the GTK+ installation. Please make sure that"; \
echo "* the GTK+ 2.0 development package is correctly installed..."; \
echo "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
echo "*"; \
false; \
fi
endif
$(obj)/zconf.tab.o: $(obj)/lex.zconf.c $(obj)/zconf.hash.c
$(obj)/kconfig_load.o: $(obj)/lkc_defs.h
$(obj)/qconf.o: $(obj)/qconf.moc $(obj)/lkc_defs.h
$(obj)/gconf.o: $(obj)/lkc_defs.h
$(obj)/%.moc: $(src)/%.h
$(KC_QT_MOC) -i $< -o $@
$(obj)/lkc_defs.h: $(src)/lkc_proto.h
sed < $< > $@ 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'
###
# The following requires flex/bison/gperf
# By default we use the _shipped versions, uncomment the following line if
# you are modifying the flex/bison src.
# LKC_GENPARSER := 1
ifdef LKC_GENPARSER
$(obj)/zconf.tab.c: $(src)/zconf.y
$(obj)/lex.zconf.c: $(src)/zconf.l
$(obj)/zconf.hash.c: $(src)/zconf.gperf
%.tab.c: %.y
bison -l -b $* -p $(notdir $*) $<
cp $@ $@_shipped
lex.%.c: %.l
flex -L -P$(notdir $*) -o$@ $<
cp $@ $@_shipped
%.hash.c: %.gperf
gperf < $< > $@
cp $@ $@_shipped
endif
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