build system overhaul
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
new file mode 100644
index 0000000..a28414d
--- /dev/null
+++ b/scripts/kconfig/Makefile
@@ -0,0 +1,254 @@
+# ===========================================================================
+# Kernel configuration targets
+# These targets are used from top-level makefile
+
+PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config
+
+xconfig: $(obj)/qconf
+ $< Config.in
+
+gconfig: $(obj)/gconf
+ $< Config.in
+
+menuconfig: $(obj)/mconf
+ $(Q)$(MAKE) $(build)=scripts/kconfig/lxdialog
+ $< Config.in
+
+config: $(obj)/conf
+ $< Config.in
+
+oldconfig: $(obj)/conf
+ $< -o Config.in
+
+silentoldconfig: $(obj)/conf
+ $< -s Config.in
+
+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 Config.in
+
+allyesconfig: $(obj)/conf
+ $< -y Config.in
+
+allnoconfig: $(obj)/conf
+ $< -n Config.in
+
+allmodconfig: $(obj)/conf
+ $< -m Config.in
+
+defconfig: $(obj)/conf
+ifeq ($(KBUILD_DEFCONFIG),)
+ $< -d Config.in
+else
+ @echo *** Default configuration is based on '$(KBUILD_DEFCONFIG)'
+ $(Q)$< -D $(KBUILD_DEFCONFIG) Config.in
+endif
+
+%_defconfig: $(obj)/conf
+ $(Q)$< -D $@ Config.in
+
+# Help text used by make help
+help:
+ @echo ' config - Update current config utilising a line-oriented program'
+ @echo ' menuconfig - Update current config utilising a menu based program'
+ @echo ' xconfig - Update current config utilising a QT based front-end'
+ @echo ' gconfig - Update current config utilising a GTK based front-end'
+ @echo ' oldconfig - Update current config utilising a provided .config as base'
+ @echo ' randconfig - New config with random answer to all options'
+ @echo ' defconfig - New config with default answer to all options'
+ @echo ' allmodconfig - New config selecting modules when possible'
+ @echo ' allyesconfig - New config where all options are accepted with yes'
+ @echo ' allnoconfig - New config where all options are answered with no'
+
+# ===========================================================================
+# Shared Makefile for the various kconfig executables:
+# conf: Used for defconfig, oldconfig and related targets
+# mconf: Used for the mconfig target.
+# Utilizes the lxdialog package
+# qconf: Used for the xconfig target
+# Based on QT which needs to be installed to compile it
+# gconf: Used for the gconfig target
+# Based on GTK which needs to be installed to compile it
+# object files used by all kconfig flavours
+
+hostprogs-y := conf mconf qconf gconf kxgettext
+conf-objs := conf.o zconf.tab.o
+mconf-objs := mconf.o zconf.tab.o
+kxgettext-objs := kxgettext.o zconf.tab.o
+
+ifeq ($(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