all:

# Get settings from the output of configure by running it to generate
# Makefile.config if it doesn't exist yet.

# If Makefile.config doesn't exist, then srcdir won't be
# set. Conditionally set it (assuming a plain srcdir build) so that
# the rule to generate Makefile.config can actually work.
srcdir ?= .

include Makefile.config
Makefile.config: $(srcdir)/configure
ifeq ($(configure_options),)
	@echo ""
	@echo "Note: Calling ./configure with no command-line arguments. This is often fine,"
	@echo "      but if you want to specify any arguments (such as an alternate prefix"
	@echo "      into which to install), call ./configure explicitly and then make again."
	@echo "      See \"./configure --help\" for more details."
	@echo ""
endif
	$(srcdir)/configure $(configure_options)

LIBGLAZE_LINKER_NAME = libglaze.so
LIBGLAZE_SONAME = $(LIBGLAZE_LINKER_NAME).$(MAJOR)
LIBGLAZE_LIBNAME = $(LIBGLAZE_SONAME).$(MINOR).$(RELEASE)

LIBGLAZE_32_LINKER_NAME = libglaze-32.so
LIBGLAZE_32_SONAME = $(LIBGLAZE_32_LINKER_NAME).$(MAJOR)
LIBGLAZE_32_LIBNAME = $(LIBGLAZE_32_SONAME).$(MINOR).$(RELEASE)

ifeq ($(COMPILER_SUPPORTS_32),Yes)
TARGETS += $(LIBGLAZE_32_LIBNAME)
TARGETS += $(LIB32_DIR)/libGL.so.1
TARGETS += glaze-find-libgl-32
endif

ifeq ($(COMPILER_SUPPORTS_64),Yes)
TARGETS += $(LIBGLAZE_LIBNAME)
TARGETS += $(LIB64_DIR)/libGL.so.1
TARGETS += glaze-find-libgl-64
endif

all: $(TARGETS)

GLAZE_CFLAGS = $(CFLAGS) $(WARN_CFLAGS)

$(LIBGLAZE_32_LIBNAME): glaze.c
	$(CC) $(GLAZE_CFLAGS) -m32 -fPIC -shared -Wl,-Bsymbolic,-soname=$(LIBGLAZE_SONAME) -ldl -ltalloc -o $@ $<

$(LIBGLAZE_LIBNAME): glaze.c
	$(CC) $(GLAZE_CFLAGS) -m64 -fPIC -shared -Wl,-Bsymbolic,-soname=$(LIBGLAZE_SONAME) -ldl -ltalloc -o $@ $<

$(LIB64_DIR)/libGL.so.1: glaze-gl.c
	mkdir -p $(LIB64_DIR)
	$(CC) $(GLAZE_CFLAGS) -DGLAZE_BITS=64 -m64 -fPIC -shared -Wl,-Bsymbolic -o $@ $<

$(LIB32_DIR)/libGL.so.1: glaze-gl.c specs/gl.def
	mkdir -p $(LIB32_DIR)
	$(CC) $(GLAZE_CFLAGS) -DGLAZE_BITS=32 -m32 -fPIC -shared -Wl,-Bsymbolic -o $@ $<

glaze-find-libgl-32: glaze-find-libgl.c
	$(CC) $(GLAZE_CFLAGS) -m32 -fPIC -ldl -o $@ $<

glaze-find-libgl-64: glaze-find-libgl.c
	$(CC) $(GLAZE_CFLAGS) -m64 -fPIC -ldl -o $@ $<

.PHONY: install
install: all
	mkdir -p $(DESTDIR)$(INCLUDEDIR)/glaze
	install -m0644 glaze.h $(DESTDIR)$(INCLUDEDIR)/glaze
	mkdir -p $(DESTDIR)$(BINDIR)
	mkdir -p $(DESTDIR)$(LIBDIR)/pkgconfig
ifeq ($(COMPILER_SUPPORTS_32),Yes)
	mkdir -p $(DESTDIR)$(LIBDIR)/glaze/$(LIB32_DIR)
	install -m0644 $(LIB32_DIR)/libGL.so.1 $(DESTDIR)$(LIBDIR)/glaze/$(LIB32_DIR)
	ln -sf libGL.so.1 $(DESTDIR)$(LIBDIR)/glaze/$(LIB32_DIR)/libGL.so
	install -m0644 $(LIBGLAZE_32_LIBNAME) $(DESTDIR)$(LIBDIR)
	ln -sf $(LIBGLAZE_32_LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBGLAZE_32_SONAME)
	ln -sf $(LIBGLAZE_32_LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBGLAZE_32_LINKER_NAME)
	install glaze-32.pc $(DESTDIR)$(LIBDIR)/pkgconfig
	install -m0755 glaze-find-libgl-32 $(DESTDIR)$(BINDIR)
endif
ifeq ($(COMPILER_SUPPORTS_64),Yes)
	mkdir -p $(DESTDIR)$(LIBDIR)/glaze/$(LIB64_DIR)
	install -m0644 $(LIB64_DIR)/libGL.so.1 $(DESTDIR)$(LIBDIR)/glaze/$(LIB64_DIR)
	ln -sf libGL.so.1 $(DESTDIR)$(LIBDIR)/glaze/$(LIB64_DIR)/libGL.so
	install -m0644 $(LIBGLAZE_LIBNAME) $(DESTDIR)$(LIBDIR)
	ln -sf $(LIBGLAZE_LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBGLAZE_SONAME)
	ln -sf $(LIBGLAZE_LIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBGLAZE_LINKER_NAME)
	install glaze.pc $(DESTDIR)$(LIBDIR)/pkgconfig
	install -m0755 glaze-find-libgl-64 $(DESTDIR)$(BINDIR)
endif

clean:
	rm -f $(TARGETS)