X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=utils%2FMakefile.in;h=efee7f7b36c195cf6597c0c44124ac1a1a146d91;hb=14627f4038ada5d11456f3770090f3c39740d70f;hp=ef96cd5f64bb0e7a1da93f77e52c3ac8e8fc97ac;hpb=c6b273ef7292ba10943694df1656b05203d7b62f;p=xscreensaver

diff --git a/utils/Makefile.in b/utils/Makefile.in
index ef96cd5f..efee7f7b 100644
--- a/utils/Makefile.in
+++ b/utils/Makefile.in
@@ -1,6 +1,79 @@
-# utils/Makefile.in --- xscreensaver, Copyright (c) 1997 Jamie Zawinski.
+# utils/Makefile.in --- xscreensaver, Copyright (c) 1997-2000 Jamie Zawinski.
 # the `../configure' script generates `utils/Makefile' from this file.
 
+
+# The utilities in this directory are used mostly by the demos in ../hacks/.
+# The Makefile in that directory builds executables by simply referencing
+# the .o files in this directory.
+
+
+##############################################################################
+#
+# Some rambling about dynamic libraries follows, ignore it if you don't care
+# (which is almost assuredly the case.)
+#
+#
+# It would probably be sensible to just build a single .a file in this
+# directory, and link the hacks against that (statically.)  I haven't done
+# that for two reasons: first, it works now, and why fix what ain't broke;
+# second, it wouldn't actually improve anything for the end user (it would
+# just make the Makefiles be a little smaller.)
+#
+# People sometimes suggest that the stuff in this directory should be in a
+# dynamic library, and that the hacks should be linked dynamically against
+# it.  I haven't done this for a number of reasons:
+#
+#  *  First, the only thing that would improve would be disk space, in that
+#     the executable files themselves would be smaller.  That's it.  Many other
+#     things would get worse if we used a dynamic library:
+#
+#  *  Complication of installation procedures: suddenly, before any of the
+#     hacks will work, you need to have a dynamic library installed, and
+#     the system configured to use it.  This is, basically, rocket science.
+#     Most people don't know how to do this, it's a huge pain, and on many
+#     systems, it requires root access.
+#
+#  *  Complication of the Makefile: every system builds dynamic libraries
+#     differently.  Every compiler takes different flags.  I don't want to
+#     do the hand-holding for the scores of Unix systems and compilers on 
+#     which people try to build this program.
+#
+#  *  Reduction of maintainability: gdb is remarkably bad at dealing with
+#     debug info in dynamic libraries, and when debugging a hack, one would
+#     constantly be fighting the linker and the debugger (or linking
+#     statically when debugging.)
+#
+#  *  Version skew: when things are statically linked, it's perfectly ok to
+#     make incompatible changes to the APIs defined in this directory, so long
+#     as the current version in ../hacks/ is in sync.  Much more care would 
+#     need to be taken with such things if dynamic libraries were involved,
+#     to make sure that the major and minor versions of the library changed
+#     at the appropriate time.  This isn't too hard, but it's more work, and
+#     yet another opportunity to screw up.
+#
+#  *  Runtime memory usage goes *up*.  That's right, up!  When a program
+#     links in a dynamic library, the whole library is brought into the 
+#     address space, not just the files that are actually used.  Normally,
+#     this is ok, because if several programs are using (for example)
+#     libX11.so, chances are that the savings outweighs the overhead.  But
+#     the nature of xscreensaver is that only one of the hacks ever runs at
+#     a time -- so there would never be a second program using the utils/
+#     dynamic library with which things could be shared.
+#
+#  *  Runtime speed decreases slightly, since dynamic code is marginally
+#     slower.  On modern machines, this probably doesn't make a perceptible
+#     difference, however.
+#
+# So basically, I just don't think using libraries would be a win, and it would
+# definitely cause more of a maintenance and portability headache.  However,
+# if someone else wants to do the work to make it be an option to configure,
+# and verifies that it works on several (more than three) different Unixes,
+# I'd be happy to take the patches.
+#                                                           -- jwz, 30-Jun-98
+#
+##############################################################################
+
+
 @SET_MAKE@
 .SUFFIXES:
 .SUFFIXES: .c .o
@@ -18,20 +91,24 @@ DEPEND_FLAGS	= @DEPEND_FLAGS@
 DEPEND_DEFINES	= @DEPEND_DEFINES@
 
 SHELL		= /bin/sh
+INSTALL		= @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA	= @INSTALL_DATA@
+INSTALL_DIRS	= @INSTALL_DIRS@
 
 X_CFLAGS	= @X_CFLAGS@
 
 INCLUDES	= -I$(srcdir) -I.. @INCLUDES@
 
 SRCS		= alpha.c colors.c fade.c grabscreen.c hsv.c overlay.c \
-		  resources.c spline.c usleep.c visual.c xmu.c xroger.c \
-		  yarandom.c erase.c sgivideo.c
+		  resources.c spline.c usleep.c visual.c visual-gl.c xmu.c \
+		  xroger.c yarandom.c erase.c sgivideo.c xshm.c xdbe.c
 OBJS		= alpha.o colors.o fade.o grabscreen.o hsv.o overlay.o \
-		  resources.o spline.o usleep.o visual.o xmu.o xroger.o \
-		  yarandom.o erase.o sgivideo.o
+		  resources.o spline.o usleep.o visual.o visual-gl.o xmu.o \
+		  xroger.o yarandom.o erase.o sgivideo.o xshm.o xdbe.o
 HDRS		= alpha.h colors.h fade.h grabscreen.h hsv.h resources.h \
 		  spline.h usleep.h utils.h version.h visual.h vroot.h xmu.h \
-		  yarandom.h erase.h sgivideo.h
+		  yarandom.h erase.h sgivideo.h xshm.h xdbe.h
 EXTRAS		= README Makefile.in ad2c
 VMSFILES	= compile_axp.com compile_decc.com vms-gtod.c vms-gtod.h \
 		  vms-strdup.c
@@ -39,6 +116,7 @@ VMSFILES	= compile_axp.com compile_decc.com vms-gtod.c vms-gtod.h \
 TARFILES	= $(EXTRAS) $(VMSFILES) $(SRCS) $(HDRS)
 
 
+default: all
 all: $(OBJS)
 
 install:   install-program   install-man
@@ -56,7 +134,7 @@ clean:
 	-rm -f *.o a.out core
 
 distclean: clean
-	-rm -f config.h Makefile *~ "#"*
+	-rm -f Makefile TAGS *~ "#"*
 
 # Adds all current dependencies to Makefile
 depend:
@@ -125,10 +203,12 @@ distdepend:: compile_axp.com compile_decc.com
 ##############################################################################
 #
 # DO NOT DELETE: updated by make distdepend
+# $(srcdir)/DO $(srcdir)/NOT $(srcdir)/DELETE: $(srcdir)/updated $(srcdir)/by $(srcdir)/make $(srcdir)/distdepend
 
 alpha.o: $(srcdir)/utils.h
 alpha.o: ../config.h
 alpha.o: $(srcdir)/alpha.h
+alpha.o: $(srcdir)/visual.h
 alpha.o: $(srcdir)/hsv.h
 alpha.o: $(srcdir)/yarandom.h
 alpha.o: $(srcdir)/resources.h
@@ -170,6 +250,9 @@ visual.o: $(srcdir)/utils.h
 visual.o: ../config.h
 visual.o: $(srcdir)/resources.h
 visual.o: $(srcdir)/visual.h
+visual-gl.o: $(srcdir)/utils.h
+visual-gl.o: ../config.h
+visual-gl.o: $(srcdir)/visual.h
 xmu.o: ../config.h
 xroger.o: $(srcdir)/utils.h
 xroger.o: ../config.h
@@ -186,5 +269,12 @@ sgivideo.o: ../config.h
 sgivideo.o: $(srcdir)/sgivideo.h
 sgivideo.o: $(srcdir)/resources.h
 sgivideo.o: $(srcdir)/visual.h
-sgivideo.o: $(srcdir)/usleep.h
+xshm.o: $(srcdir)/utils.h
+xshm.o: ../config.h
+xshm.o: $(srcdir)/xshm.h
+xshm.o: $(srcdir)/resources.h
+xdbe.o: $(srcdir)/utils.h
+xdbe.o: ../config.h
+xdbe.o: $(srcdir)/xdbe.h
+xdbe.o: $(srcdir)/resources.h