# Copyright © 2009-2012, 2015, 2019-2020, 2022 Nick Bowler
#
# License WTFPL2: Do What The Fuck You Want To Public License, version 2.
# This is free software: you are free to do what the fuck you want to.
# There is NO WARRANTY, to the extent permitted by law.

ACLOCAL_AMFLAGS = -I m4 -I common/m4
MAINTAINERCLEANFILES =
MOSTLYCLEANFILES =
DISTCLEANFILES =

# Distribution should be buildable without working gob.
AM_DISTCHECK_CONFIGURE_FLAGS = GOB2=false

EXTRA_DIST = $(MAINTAINERCLEANFILES) m4/gnulib-cache.m4
CLEANFILES = $(EXTRA_LTLIBRARIES) $(EXTRA_LIBRARIES)

AM_CPPFLAGS = -I$(top_builddir)/src -I$(top_srcdir)/src \
              -I$(top_builddir)/lib -I$(top_srcdir)/lib \
              -I$(DX_BASEDIR)/src -DPKGLIBDIR=\"$(pkglibdir)\" \
              -DPKGDATADIR=\"$(pkgdatadir)\"

AM_CFLAGS = $(LTDLINCL) $(GLIB_CFLAGS) $(LIBMODPLUG_CFLAGS)

bin_PROGRAMS = upkg
lib_LTLIBRARIES = libupkg.la libuobject.la
pkglib_LTLIBRARIES = engine.la
noinst_LTLIBRARIES =
EXTRA_LTLIBRARIES =
include_HEADERS =

dist_man_MANS = doc/man/upkg.1

upkg_SOURCES = src/upkg.c src/upkg.h src/upkgopts.h \
               common/src/help.c common/src/help.h
upkg_LDFLAGS = $(AM_LDFLAGS) -export-dynamic
upkg_LDADD   = libuobject.la libupkg.la libgnu.la $(GLIB_LIBS)
$(upkg_OBJECTS): $(gnulib_headers) src/upkgopts.h

libupkg_la_SOURCES = src/libupkg.c common/src/pack.c common/src/pack.h
$(libupkg_la_OBJECTS): $(gnulib_headers)

uobjectdir = $(includedir)/uobject
uobject_HEADERS = src/uobject/uobject.h src/uobject/exportable.h \
	src/uobject/loadable.h src/uobject/module.h src/uobject/package.h \
	src/uobject/vfs.h

libuobject_la_SOURCES = src/uobject/uobject.c src/uobject/module.c \
	src/uobject/avl.c src/uobject/avl.h src/uobject/package.c \
	src/uobject/exportable.c src/uobject/loadable.c src/uobject/vfs.c \
	src/uobject/primitives.c
libuobject_la_LDFLAGS  = $(AM_LDFLAGS) -export-symbols-regex '^u_'
libuobject_la_LIBADD   = libgnu.la $(LIBLTDL) $(GLIB_LIBS)
$(libuobject_la_OBJECTS): $(gnulib_headers)

libuobject_la = libuobject.la
$(libuobject_la): $(LTDLDEPS)

moduleflags = -module -avoid-version -export-symbols-regex _LTX_

engine_GOBS = src/engine/palette.gob src/engine/texture.gob \
	src/engine/music.gob src/engine/sound.gob src/engine/mesh.gob
EXTRA_DIST += $(engine_GOBS)

MAINTAINERCLEANFILES += $(engine_GOBS:.gob=.gobstamp) \
	$(engine_GOBS:.gob=.c) $(engine_GOBS:.gob=.h)

engine_la_SOURCES = $(engine_GOBS:.gob=.c) $(engine_GOBS:.gob=.h) \
	src/engine/engine.c \
	src/engine/music-module.h \
	src/engine/pcx.c \
	src/engine/pcx.h
engine_la_LDFLAGS  = $(AM_LDFLAGS) $(moduleflags)
engine_la_LIBADD   = $(GLIB_LIBS)
$(engine_la_OBJECTS): $(gnulib_headers) $(engine_GOBS:.gob=.gobstamp)

if USE_DUMMYMOD
engine_la_SOURCES += src/engine/music-dummymod.c
endif

if USE_LIBMODPLUG
engine_la_SOURCES  += src/engine/music-modplug.c src/engine/modplug-types.h
engine_la_LIBADD   += $(LIBMODPLUG_LIBS)
endif

check_PROGRAMS = test/decodeindex test/pcxrle
check_LIBRARIES = libtest.a

libtest_a_SOURCES = test/common.c test/common.h common/src/help.c
$(libtest_a_OBJECTS): $(gnulib_headers)

TEST_LIBS = libtest.a libgnu.la

test_decodeindex_LDADD = libupkg.la $(TEST_LIBS)
$(test_decodeindex_OBJECTS): $(gnulib_headers)
test_pcxrle_LDADD = src/engine/pcx.lo libupkg.la $(TEST_LIBS)
$(test_pcxrle_OBJECTS): $(gnulib_headers)

EXTRA_DIST += tests/data/test0.utx tests/data/hatch2x2.pcx

# Supporting rules for GObject Builder
GOB_V   = $(GOB_V_@AM_V@)
GOB_V_  = $(GOB_V_@AM_DEFAULT_V@)
GOB_V_0 = @printf '  %$(DX_ALIGN_V)s %s\n' 'GOB     ' $<;

# Unfortunately, GOB's output filenames depend on the contents of the gob file,
# rather than its filename.  This isn't really suitable for use with make, so
# this rule has to make some assumptions about the source tree layout.
.gob.gobstamp:
if HAVE_GOB2_DYN
	$(AM_V_at) touch $@.tmp
	$(GOB_V) od='$(@D)'; case $$od in \
	  src/*) od=src ;; \
	  */src/*) od=$${od%/src/*}/src ;; \
	  esac; $(GOB2) -o "$$od" --file-sep=/ \
	    --no-private-header --no-touch-headers $<
	$(AM_V_at) mv -f $@.tmp $@
else
if HAVE_GOB2
	@echo "ERROR: *** $(GOB2) does not support dynamic types." 1>&2
else
	@echo "ERROR: *** gob2 is missing on your system."  1>&2
endif
	@:; { \
	 echo "       *** Because of this, I cannot compile $<, but"; \
	 echo "       *** (perhaps because you modified it) the sources appear out of date."; \
	 echo "       *** A newer version of gob2 may be required; the latest version"; \
	 echo "       *** may be found at <https://draconx.ca/projects/gob-dx/>."; \
	 echo "       *** See config.log for more details."; \
	} 1>&2
	@false
endif

STAMP_RECOVER = \
	@if test -f $@; then :; else rm -f $<; $(MAKE) $(AM_MAKEFLAGS) $<; fi
.gobstamp.c: ; $(STAMP_RECOVER)
.gobstamp.h: ; $(STAMP_RECOVER)

OPTFILES = src/upkgopts.opt
.opt.h:
	$(AM_V_GEN) $(AWK) -f $(DX_BASEDIR)/scripts/gen-options.awk $< >$@.tmp
	$(AM_V_at) mv -f $@.tmp $@
$(OPTFILES:.opt=.h): $(DX_BASEDIR)/scripts/gen-options.awk
MAINTAINERCLEANFILES += $(OPTFILES:.opt=.h)
EXTRA_DIST += $(DX_BASEDIR)/scripts/gen-options.awk $(OPTFILES)

# The gob rules refrain from updating unchanged headers for the convenience of
# developers, but the headers should be distributed with up-to-date timestamps.
dist-hook: update-headers
update-headers: unfuck-distdir
	for f in $(engine_GOBS:.gob=.h); do \
	  touch -c '$(distdir)'/"$$f" || exit; \
	done
.PHONY: update-headers

# When running "make dist" in a VPATH build with a read-only srcdir, Automake
# will produce a distribution with all files read-only.  Moreover, the files
# are read-only in distdir when the dist hooks are run.  This hook will
# manually fix up the permissions.  All dist hooks that modify files in
# distdir should list unfuck-distdir as a prerequisite.
dist-hook: unfuck-distdir
unfuck-distdir:
	find '$(distdir)' -type f -exec chmod u+w {} +
.PHONY: unfuck-distdir

include $(top_srcdir)/lib/gnulib.mk
include $(top_srcdir)/libltdl/ltdl.mk
include $(top_srcdir)/common/snippet/autotest.mk