1 # utils/Makefile.in --- xscreensaver, Copyright (c) 1997 Jamie Zawinski.
2 # the `../configure' script generates `utils/Makefile' from this file.
5 # The utilities in this directory are used mostly by the demos in ../hacks/.
6 # The Makefile in that directory builds executables by simply referencing
7 # the .o files in this directory.
10 ##############################################################################
12 # Some rambling about dynamic libraries follows, ignore it if you don't care
13 # (which is almost assuredly the case.)
16 # It would probably be sensible to just build a single .a file in this
17 # directory, and link the hacks against that (statically.) I haven't done
18 # that for two reasons: first, it works now, and why fix what ain't broke;
19 # second, it wouldn't actually improve anything for the end user (it would
20 # just make the Makefiles be a little smaller.)
22 # People sometimes suggest that the stuff in this directory should be in a
23 # dynamic library, and that the hacks should be linked dynamically against
24 # it. I haven't done this for a number of reasons:
26 # * First, the only thing that would improve would be disk space, in that
27 # the executable files themselves would be smaller. That's it. Many other
28 # things would get worse if we used a dynamic library:
30 # * Complication of installation procedures: suddenly, before any of the
31 # hacks will work, you need to have a dynamic library installed, and
32 # the system configured to use it. This is, basically, rocket science.
33 # Most people don't know how to do this, it's a huge pain, and on many
34 # systems, it requires root access.
36 # * Complication of the Makefile: every system builds dynamic libraries
37 # differently. Every compiler takes different flags. I don't want to
38 # do the hand-holding for the scores of Unix systems and compilers on
39 # which people try to build this program.
41 # * Reduction of maintainability: gdb is remarkably bad at dealing with
42 # debug info in dynamic libraries, and when debugging a hack, one would
43 # constantly be fighting the linker and the debugger (or linking
44 # statically when debugging.)
46 # * Version skew: when things are statically linked, it's perfectly ok to
47 # make incompatible changes to the APIs defined in this directory, so long
48 # as the current version in ../hacks/ is in sync. Much more care would
49 # need to be taken with such things if dynamic libraries were involved,
50 # to make sure that the major and minor versions of the library changed
51 # at the appropriate time. This isn't too hard, but it's more work, and
52 # yet another opportunity to screw up.
54 # * Runtime memory usage goes *up*. That's right, up! When a program
55 # links in a dynamic library, the whole library is brought into the
56 # address space, not just the files that are actually used. Normally,
57 # this is ok, because if several programs are using (for example)
58 # libX11.so, chances are that the savings outweighs the overhead. But
59 # the nature of xscreensaver is that only one of the hacks ever runs at
60 # a time -- so there would never be a second program using the utils/
61 # dynamic library with which things could be shared.
63 # * Runtime speed decreases slightly, since dynamic code is marginally
64 # slower. On modern machines, this probably doesn't make a perceptible
65 # difference, however.
67 # So basically, I just don't think using libraries would be a win, and it would
68 # definitely cause more of a maintenance and portability headache. However,
69 # if someone else wants to do the work to make it be an option to configure,
70 # and verifies that it works on several (more than three) different Unixes,
71 # I'd be happy to take the patches.
74 ##############################################################################
90 DEPEND_FLAGS = @DEPEND_FLAGS@
91 DEPEND_DEFINES = @DEPEND_DEFINES@
97 INCLUDES = -I$(srcdir) -I.. @INCLUDES@
99 SRCS = alpha.c colors.c fade.c grabscreen.c hsv.c overlay.c \
100 resources.c spline.c usleep.c visual.c xmu.c xroger.c \
101 yarandom.c erase.c sgivideo.c
102 OBJS = alpha.o colors.o fade.o grabscreen.o hsv.o overlay.o \
103 resources.o spline.o usleep.o visual.o xmu.o xroger.o \
104 yarandom.o erase.o sgivideo.o
105 HDRS = alpha.h colors.h fade.h grabscreen.h hsv.h resources.h \
106 spline.h usleep.h utils.h version.h visual.h vroot.h xmu.h \
107 yarandom.h erase.h sgivideo.h
108 EXTRAS = README Makefile.in ad2c
109 VMSFILES = compile_axp.com compile_decc.com vms-gtod.c vms-gtod.h \
112 TARFILES = $(EXTRAS) $(VMSFILES) $(SRCS) $(HDRS)
117 install: install-program install-man
118 uninstall: uninstall-program uninstall-man
121 $(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install
129 -rm -f *.o a.out core
132 -rm -f config.h Makefile *~ "#"*
134 # Adds all current dependencies to Makefile
136 $(DEPEND) -s '# DO NOT DELETE: updated by make depend' \
138 $(INCLUDES) $(DEFS) $(DEPEND_DEFINES) $(CFLAGS) $(X_CFLAGS) -- \
141 # Adds some dependencies to Makefile.in -- not totally accurate, but pretty
142 # close. This excludes dependencies on files in /usr/include, etc. It tries
143 # to include only dependencies on files which are themselves a part of this
146 @echo updating dependencies in `pwd`/Makefile.in... ; \
147 $(DEPEND) -w 0 -f - \
148 -s '# DO NOT DELETE: updated by make distdepend' $(DEPEND_FLAGS) -- \
149 $(INCLUDES) $(DEFS) $(DEPEND_DEFINES) $(CFLAGS) $(X_CFLAGS) -- \
152 awk '/^# .*Makefile.in ---/,/^# DO .*distdepend/' < Makefile.in ; \
153 sed -e 's@ \./@ @g;s@ /[^ ]*@@g;/^.*:$$/d' \
154 -e 's@ \([^$$]\)@ $$(srcdir)/\1@g' \
155 -e 's@ $$(srcdir)/\(.*config.h\)@ \1@g' ; \
157 ) > /tmp/distdepend.$$$$ && \
158 mv Makefile.in Makefile.in.bak && \
159 mv /tmp/distdepend.$$$$ Makefile.in
163 find $(srcdir) -name '*.[chly]' -print | xargs etags -a
169 # How we build object files in this directory.
171 $(CC) -c $(INCLUDES) $(DEFS) $(CFLAGS) $(X_CFLAGS) $<
174 # Rules for generating the VMS makefiles on Unix, so that it doesn't have to
177 VMS_AXP_COMPILE=$$ CC/DECC/PREFIX=ALL/DEFINE=(VMS,HAVE_CONFIG_H)/INCL=([],[-])
179 compile_axp.com: Makefile.in
180 @echo generating $@ from $<... ; \
181 ( ( for c in $(SRCS) vms-*.c ; do \
182 c=`echo $$c | tr a-z A-Z` ; \
183 echo "$(VMS_AXP_COMPILE) $$c" ; \
186 echo '$$ lib/cre utils.olb_axp' ; \
187 echo '$$ lib utils.olb_axp *.obj' ; \
188 echo '$$! delete/noconf *.obj;' ; \
191 compile_decc.com: compile_axp.com
192 @echo generating $@ from $<... ; \
193 sed 's/axp/decc/g' < $< > $@
195 distdepend:: compile_axp.com compile_decc.com
198 ##############################################################################
200 # DO NOT DELETE: updated by make distdepend
202 alpha.o: $(srcdir)/utils.h
204 alpha.o: $(srcdir)/alpha.h
205 alpha.o: $(srcdir)/hsv.h
206 alpha.o: $(srcdir)/yarandom.h
207 alpha.o: $(srcdir)/resources.h
208 colors.o: $(srcdir)/utils.h
209 colors.o: ../config.h
210 colors.o: $(srcdir)/hsv.h
211 colors.o: $(srcdir)/yarandom.h
212 colors.o: $(srcdir)/visual.h
213 colors.o: $(srcdir)/colors.h
214 fade.o: $(srcdir)/utils.h
216 fade.o: $(srcdir)/visual.h
217 fade.o: $(srcdir)/usleep.h
218 fade.o: $(srcdir)/fade.h
219 grabscreen.o: $(srcdir)/utils.h
220 grabscreen.o: ../config.h
221 grabscreen.o: $(srcdir)/yarandom.h
222 grabscreen.o: $(srcdir)/usleep.h
223 grabscreen.o: $(srcdir)/colors.h
224 grabscreen.o: $(srcdir)/grabscreen.h
225 grabscreen.o: $(srcdir)/sgivideo.h
226 grabscreen.o: $(srcdir)/visual.h
227 grabscreen.o: $(srcdir)/resources.h
228 grabscreen.o: $(srcdir)/vroot.h
229 hsv.o: $(srcdir)/utils.h
231 hsv.o: $(srcdir)/hsv.h
232 overlay.o: $(srcdir)/utils.h
233 overlay.o: ../config.h
234 overlay.o: $(srcdir)/visual.h
235 resources.o: $(srcdir)/utils.h
236 resources.o: ../config.h
237 resources.o: $(srcdir)/resources.h
238 spline.o: $(srcdir)/utils.h
239 spline.o: ../config.h
240 spline.o: $(srcdir)/spline.h
241 usleep.o: ../config.h
242 visual.o: $(srcdir)/utils.h
243 visual.o: ../config.h
244 visual.o: $(srcdir)/resources.h
245 visual.o: $(srcdir)/visual.h
247 xroger.o: $(srcdir)/utils.h
248 xroger.o: ../config.h
249 xroger.o: $(srcdir)/spline.h
250 yarandom.o: ../config.h
251 yarandom.o: $(srcdir)/yarandom.h
252 erase.o: $(srcdir)/utils.h
254 erase.o: $(srcdir)/yarandom.h
255 erase.o: $(srcdir)/usleep.h
256 erase.o: $(srcdir)/resources.h
257 sgivideo.o: $(srcdir)/utils.h
258 sgivideo.o: ../config.h
259 sgivideo.o: $(srcdir)/sgivideo.h
260 sgivideo.o: $(srcdir)/resources.h
261 sgivideo.o: $(srcdir)/visual.h
262 sgivideo.o: $(srcdir)/usleep.h