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)

TARGETS = glenv libglenv.so

all: $(TARGETS)

GLENV_CFLAGS = $(CFLAGS) $(WARN_CFLAGS) $(GLAZE_CFLAGS)
GLENV_LDFLAGS = $(GLAZE_LDFLAGS)

glenv: glenv.c
	$(CC) $(GLENV_CFLAGS) $(GLENV_LDFLAGS) -o $@ $<

libglenv.so: glwrap.c
	$(CC) $(GLENV_CFLAGS) $(GLENV_LDFLAGS) -fPIC -shared -Wl,-Bsymbolic -o $@ $<

.PHONY: install
install: all
	mkdir -p $(DESTDIR)$(BINDIR)
	install -m07555 glenv $(DESTDIR)$(BINDIR)
	mkdir -p $(DESTDIR)$(LIBDIR)
	install -m0644 libglenv.so $(DESTDIR)$(LIBDIR)

clean:
	rm -f $(TARGETS)