Makefile.in

# Copyright (C) 2000 Marcelo E. Magallon <marcelo.magallon@bigfoot.com>
#
# This Makefile is free software; the author gives unlimited permission
# to copy and/or distribute it, with or without modifications, as long
# as this notice is preserved.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE.

#############################################################
# These bits come from configure
#############################################################

SHELL = @SHELL@

srcdir = @srcdir@
top_srcdir = @top_srcdir@
VPATH = @srcdir@
prefix = @prefix@
exec_prefix = @exec_prefix@

bindir = @bindir@
sbindir = @sbindir@
libexecdir = @libexecdir@
datadir = @datadir@
sysconfdir = @sysconfdir@
sharedstatedir = @sharedstatedir@
localstatedir = @localstatedir@
libdir = @libdir@
infodir = @infodir@
mandir = @mandir@
includedir = @includedir@
oldincludedir = /usr/include

DESTDIR =

pkgdatadir = $(datadir)/@PACKAGE@
pkglibdir = $(libdir)/@PACKAGE@
pkgincludedir = $(includedir)/@PACKAGE@

top_builddir = ../..

INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
INSTALL_SCRIPT = @INSTALL_SCRIPT@

mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs

@SET_MAKE@

#############################################################
# These bits are hand-written down-to-earth makefile stuff
#############################################################

MAJOR     := 0
MINOR     := 1
VERSION   := $(MAJOR).$(MINOR)
LIBNAME   := libfakeGL.so
FAKELIB   := $(LIBNAME).$(VERSION)
SONAME    := $(LIBNAME).$(MAJOR)
HELPER    := spyglass-helper
HELPERBIN := $(HELPER).real

SOFLAGS   := -fPIC

COMPILE   := $(CC) -c

# _GNU_SOURCE is needed for strncat; if I ever port this to a non-GNU platform
# I'll end up writing strndup myself and removing this.

CPPFLAGS  := -D_GNU_SOURCE
CFLAGS    := -O2 -Wall

# Use this if you want to have libfakeGL dlopen the system's OpenGL lib
# CPPFLAGS += -DDLOPEN_GL_LIB

# Use and change this if your system's OpenGL lib is somewhere else
# CPPFLAGS += -DOPENGLLIB=\"/usr/lib/libGL.so.1\"

LDLIBS    := -ldl

FAKELIBSRC     := libfakeGL.c
FAKELIBOBJS    := $(FAKELIBSRC:.c=.o)
FAKELIBAUTOSRC := gl_function_table.c

GENTABLE  := $(PWD)/gentable.pl
LN        := ln -sf

GARBAGE   := $(FAKELIBOBJS) \
             $(FAKELIBAUTOSRC) \
             $(LIBNAME) \
             $(FAKELIB) \
             $(SONAME) \
             $(HELPERBIN)

TARGETS   := $(SONAME) $(HELPER)

all: $(TARGETS)

$(FAKELIB): $(FAKELIBOBJS)
	$(CC) -shared -o $@ -Wl,-soname,$(SONAME) $(LDFLAGS) $^ $(LOADLIBES) $(LDLIBS)

$(HELPER): $(HELPERBIN)
	touch $@

$(HELPERBIN): spyglass-helper.c $(LIBNAME)
	$(CC) -o $@ $^

$(SONAME): $(FAKELIB)
	$(LN) $^ $@

$(LIBNAME): $(SONAME)
	$(LN) $^ $@

$(FAKELIBOBJS): %.o: %.c
	$(COMPILE) -o $@ $(CPPFLAGS) $(CFLAGS) $(SOFLAGS) $<

libfakeGL.o: $(FAKELIBAUTOSRC)

libfakeGL.c: $(FAKELIBAUTOSRC)

$(FAKELIBAUTOSRC): $(GENTABLE)
	$^ specs/gl.spec gl > $@

clean:
	$(RM) $(GARBAGE)
	$(RM) *~

distclean mrproper: clean
	$(RM) Makefile

install: all
	$(mkinstalldirs) $(DESTDIR)$(pkglibdir)
	$(INSTALL_DATA) $(FAKELIB) $(DESTDIR)$(pkglibdir)
	ln -sf $(FAKELIB) $(DESTDIR)$(pkglibdir)/$(LIBNAME)
	ln -sf $(FAKELIB) $(DESTDIR)$(pkglibdir)/$(SONAME)
	$(INSTALL_SCRIPT) $(HELPER) $(DESTDIR)$(pkglibdir)
	$(INSTALL_PROGRAM) $(HELPERBIN) $(DESTDIR)$(pkglibdir)

.PHONY: clean distclean mrproper
.NOEXPORT: