kbuild: don't overwrite HOST_EXTRACFLAGS
[linux-2.6.git] / scripts / kconfig / Makefile
1 # ===========================================================================
2 # Kernel configuration targets
3 # These targets are used from top-level makefile
4
5 PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config \
6         localmodconfig localyesconfig
7
8 ifdef KBUILD_KCONFIG
9 Kconfig := $(KBUILD_KCONFIG)
10 else
11 Kconfig := arch/$(SRCARCH)/Kconfig
12 endif
13
14 xconfig: $(obj)/qconf
15         $< $(Kconfig)
16
17 gconfig: $(obj)/gconf
18         $< $(Kconfig)
19
20 menuconfig: $(obj)/mconf
21         $< $(Kconfig)
22
23 config: $(obj)/conf
24         $< --oldaskconfig $(Kconfig)
25
26 nconfig: $(obj)/nconf
27         $< $(Kconfig)
28
29 oldconfig: $(obj)/conf
30         $< --$@ $(Kconfig)
31
32 silentoldconfig: $(obj)/conf
33         $(Q)mkdir -p include/generated
34         $< --$@ $(Kconfig)
35
36 # if no path is given, then use src directory to find file
37 ifdef LSMOD
38 LSMOD_F := $(LSMOD)
39 ifeq ($(findstring /,$(LSMOD)),)
40   LSMOD_F := $(objtree)/$(LSMOD)
41 endif
42 endif
43
44 localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
45         $(Q)mkdir -p include/generated
46         $(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
47         $(Q)if [ -f .config ]; then                                     \
48                         cmp -s .tmp.config .config ||                   \
49                         (mv -f .config .config.old.1;                   \
50                          mv -f .tmp.config .config;                     \
51                          $(obj)/conf --silentoldconfig $(Kconfig);      \
52                          mv -f .config.old.1 .config.old)               \
53         else                                                            \
54                         mv -f .tmp.config .config;                      \
55                         $(obj)/conf --silentoldconfig $(Kconfig);       \
56         fi
57         $(Q)rm -f .tmp.config
58
59 localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
60         $(Q)mkdir -p include/generated
61         $(Q)perl $< $(srctree) $(Kconfig) $(LSMOD_F) > .tmp.config
62         $(Q)sed -i s/=m/=y/ .tmp.config
63         $(Q)if [ -f .config ]; then                                     \
64                         cmp -s .tmp.config .config ||                   \
65                         (mv -f .config .config.old.1;                   \
66                          mv -f .tmp.config .config;                     \
67                          $(obj)/conf --silentoldconfig $(Kconfig);      \
68                          mv -f .config.old.1 .config.old)               \
69         else                                                            \
70                         mv -f .tmp.config .config;                      \
71                         $(obj)/conf --silentoldconfig $(Kconfig);       \
72         fi
73         $(Q)rm -f .tmp.config
74
75 # Create new linux.pot file
76 # Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
77 # The symlink is used to repair a deficiency in arch/um
78 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
79         $(Q)echo "  GEN config"
80         $(Q)xgettext --default-domain=linux              \
81             --add-comments --keyword=_ --keyword=N_      \
82             --from-code=UTF-8                            \
83             --files-from=scripts/kconfig/POTFILES.in     \
84             --output $(obj)/config.pot
85         $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
86         $(Q)ln -fs Kconfig.i386 arch/um/Kconfig.arch
87         $(Q)(for i in `ls arch/*/Kconfig`;               \
88             do                                           \
89                 echo "  GEN $$i";                        \
90                 $(obj)/kxgettext $$i                     \
91                      >> $(obj)/config.pot;               \
92             done )
93         $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
94             --output $(obj)/linux.pot
95         $(Q)rm -f arch/um/Kconfig.arch
96         $(Q)rm -f $(obj)/config.pot
97
98 PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig
99
100 allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
101         $< --$@ $(Kconfig)
102
103 PHONY += listnewconfig oldnoconfig savedefconfig defconfig
104
105 listnewconfig oldnoconfig: $(obj)/conf
106         $< --$@ $(Kconfig)
107
108 savedefconfig: $(obj)/conf
109         $< --$@=defconfig $(Kconfig)
110
111 defconfig: $(obj)/conf
112 ifeq ($(KBUILD_DEFCONFIG),)
113         $< --defconfig $(Kconfig)
114 else
115         @echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
116         $(Q)$< --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
117 endif
118
119 %_defconfig: $(obj)/conf
120         $(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
121
122 # Help text used by make help
123 help:
124         @echo  '  config          - Update current config utilising a line-oriented program'
125         @echo  '  nconfig         - Update current config utilising a ncurses menu based program'
126         @echo  '  menuconfig      - Update current config utilising a menu based program'
127         @echo  '  xconfig         - Update current config utilising a QT based front-end'
128         @echo  '  gconfig         - Update current config utilising a GTK based front-end'
129         @echo  '  oldconfig       - Update current config utilising a provided .config as base'
130         @echo  '  localmodconfig  - Update current config disabling modules not loaded'
131         @echo  '  localyesconfig  - Update current config converting local mods to core'
132         @echo  '  silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
133         @echo  '  defconfig       - New config with default from ARCH supplied defconfig'
134         @echo  '  savedefconfig   - Save current config as ./defconfig (minimal config)'
135         @echo  '  allnoconfig     - New config where all options are answered with no'
136         @echo  '  allyesconfig    - New config where all options are accepted with yes'
137         @echo  '  allmodconfig    - New config selecting modules when possible'
138         @echo  '  alldefconfig    - New config with all symbols set to default'
139         @echo  '  randconfig      - New config with random answer to all options'
140         @echo  '  listnewconfig   - List new options'
141         @echo  '  oldnoconfig     - Same as silentoldconfig but set new symbols to n (unset)'
142
143 # lxdialog stuff
144 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
145
146 # Use recursively expanded variables so we do not call gcc unless
147 # we really need to do so. (Do not call gcc as part of make mrproper)
148 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
149                     -DLOCALE
150
151 # ===========================================================================
152 # Shared Makefile for the various kconfig executables:
153 # conf:   Used for defconfig, oldconfig and related targets
154 # nconf:  Used for the nconfig target.
155 #         Utilizes ncurses
156 # mconf:  Used for the menuconfig target
157 #         Utilizes the lxdialog package
158 # qconf:  Used for the xconfig target
159 #         Based on QT which needs to be installed to compile it
160 # gconf:  Used for the gconfig target
161 #         Based on GTK which needs to be installed to compile it
162 # object files used by all kconfig flavours
163
164 lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
165 lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
166
167 conf-objs       := conf.o  zconf.tab.o
168 mconf-objs     := mconf.o zconf.tab.o $(lxdialog)
169 nconf-objs     := nconf.o zconf.tab.o nconf.gui.o
170 kxgettext-objs  := kxgettext.o zconf.tab.o
171
172 hostprogs-y := conf qconf gconf kxgettext
173
174 ifeq ($(MAKECMDGOALS),nconfig)
175         hostprogs-y += nconf
176 endif
177
178 ifeq ($(MAKECMDGOALS),menuconfig)
179         hostprogs-y += mconf
180 endif
181
182 ifeq ($(MAKECMDGOALS),xconfig)
183         qconf-target := 1
184 endif
185 ifeq ($(MAKECMDGOALS),gconfig)
186         gconf-target := 1
187 endif
188
189
190 ifeq ($(qconf-target),1)
191 qconf-cxxobjs   := qconf.o
192 qconf-objs      := kconfig_load.o zconf.tab.o
193 endif
194
195 ifeq ($(gconf-target),1)
196 gconf-objs      := gconf.o kconfig_load.o zconf.tab.o
197 endif
198
199 clean-files     := lkc_defs.h qconf.moc .tmp_qtcheck \
200                    .tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c gconf.glade.h
201 clean-files     += mconf qconf gconf nconf
202 clean-files     += config.pot linux.pot
203
204 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
205 PHONY += $(obj)/dochecklxdialog
206 $(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
207 $(obj)/dochecklxdialog:
208         $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
209
210 always := dochecklxdialog
211
212 # Add environment specific flags
213 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
214
215 # generated files seem to need this to find local include files
216 HOSTCFLAGS_lex.zconf.o  := -I$(src)
217 HOSTCFLAGS_zconf.tab.o  := -I$(src)
218
219 HOSTLOADLIBES_qconf     = $(KC_QT_LIBS) -ldl
220 HOSTCXXFLAGS_qconf.o    = $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
221
222 HOSTLOADLIBES_gconf     = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0` -ldl
223 HOSTCFLAGS_gconf.o      = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
224                           -D LKC_DIRECT_LINK
225
226 HOSTLOADLIBES_mconf   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
227
228 HOSTLOADLIBES_nconf     = -lmenu -lpanel -lncurses
229 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
230
231 ifeq ($(qconf-target),1)
232 $(obj)/.tmp_qtcheck: $(src)/Makefile
233 -include $(obj)/.tmp_qtcheck
234
235 # QT needs some extra effort...
236 $(obj)/.tmp_qtcheck:
237         @set -e; echo "  CHECK   qt"; dir=""; pkg=""; \
238         pkg-config --exists qt 2> /dev/null && pkg=qt; \
239         pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
240         if [ -n "$$pkg" ]; then \
241           cflags="\$$(shell pkg-config $$pkg --cflags)"; \
242           libs="\$$(shell pkg-config $$pkg --libs)"; \
243           moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
244           dir="$$(pkg-config $$pkg --variable=prefix)"; \
245         else \
246           for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
247             if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
248           done; \
249           if [ -z "$$dir" ]; then \
250             echo "*"; \
251             echo "* Unable to find the QT3 installation. Please make sure that"; \
252             echo "* the QT3 development package is correctly installed and"; \
253             echo "* either install pkg-config or set the QTDIR environment"; \
254             echo "* variable to the correct location."; \
255             echo "*"; \
256             false; \
257           fi; \
258           libpath=$$dir/lib; lib=qt; osdir=""; \
259           $(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
260             osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
261           test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
262           test -f $$libpath/libqt-mt.so && lib=qt-mt; \
263           cflags="-I$$dir/include"; \
264           libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
265           moc="$$dir/bin/moc"; \
266         fi; \
267         if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
268           echo "*"; \
269           echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc instead."; \
270           echo "*"; \
271           moc="/usr/bin/moc"; \
272         fi; \
273         echo "KC_QT_CFLAGS=$$cflags" > $@; \
274         echo "KC_QT_LIBS=$$libs" >> $@; \
275         echo "KC_QT_MOC=$$moc" >> $@
276 endif
277
278 $(obj)/gconf.o: $(obj)/.tmp_gtkcheck
279
280 ifeq ($(gconf-target),1)
281 -include $(obj)/.tmp_gtkcheck
282
283 # GTK needs some extra effort, too...
284 $(obj)/.tmp_gtkcheck:
285         @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then               \
286                 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then                  \
287                         touch $@;                                                               \
288                 else                                                                    \
289                         echo "*";                                                       \
290                         echo "* GTK+ is present but version >= 2.0.0 is required.";     \
291                         echo "*";                                                       \
292                         false;                                                          \
293                 fi                                                                      \
294         else                                                                            \
295                 echo "*";                                                               \
296                 echo "* Unable to find the GTK+ installation. Please make sure that";   \
297                 echo "* the GTK+ 2.0 development package is correctly installed...";    \
298                 echo "* You need gtk+-2.0, glib-2.0 and libglade-2.0.";                 \
299                 echo "*";                                                               \
300                 false;                                                                  \
301         fi
302 endif
303
304 $(obj)/zconf.tab.o: $(obj)/lex.zconf.c $(obj)/zconf.hash.c
305
306 $(obj)/kconfig_load.o: $(obj)/lkc_defs.h
307
308 $(obj)/qconf.o: $(obj)/qconf.moc $(obj)/lkc_defs.h
309
310 $(obj)/gconf.o: $(obj)/lkc_defs.h
311
312 $(obj)/%.moc: $(src)/%.h
313         $(KC_QT_MOC) -i $< -o $@
314
315 $(obj)/lkc_defs.h: $(src)/lkc_proto.h
316         sed < $< > $@ 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'
317
318 # Extract gconf menu items for I18N support
319 $(obj)/gconf.glade.h: $(obj)/gconf.glade
320         intltool-extract --type=gettext/glade $(obj)/gconf.glade
321
322 ###
323 # The following requires flex/bison/gperf
324 # By default we use the _shipped versions, uncomment the following line if
325 # you are modifying the flex/bison src.
326 # LKC_GENPARSER := 1
327
328 ifdef LKC_GENPARSER
329
330 $(obj)/zconf.tab.c: $(src)/zconf.y
331 $(obj)/lex.zconf.c: $(src)/zconf.l
332 $(obj)/zconf.hash.c: $(src)/zconf.gperf
333
334 %.tab.c: %.y
335         bison -l -b $* -p $(notdir $*) $<
336         cp $@ $@_shipped
337
338 lex.%.c: %.l
339         flex -L -P$(notdir $*) -o$@ $<
340         cp $@ $@_shipped
341
342 %.hash.c: %.gperf
343         gperf < $< > $@
344         cp $@ $@_shipped
345
346 endif