# Top level -*- makefile -*- fragment for the Elna frontend.
# Copyright (C) 2025 Free Software Foundation, Inc.

# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.

# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

ELNA_INSTALL_NAME := $(shell echo gelna|sed '$(program_transform_name)')
ELNA_TARGET_INSTALL_NAME := $(target_noncanonical)-$(shell echo gelna|sed '$(program_transform_name)')

elna: elna1$(exeext)

.PHONY: elna

# Driver

ELNA_OBJS = \
   $(GCC_OBJS) \
   elna/elna-spec.o \
   $(END)

gelna$(exeext): $(ELNA_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a $(LIBDEPS)
	+$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
	  $(ELNA_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a \
	  $(EXTRA_GCC_LIBS) $(LIBS)

# The compiler proper

elna_OBJS = \
	elna/elna1.o \
	elna/elna-generic.o \
	elna/elna-diagnostic.o \
	elna/elna-tree.o \
	elna/elna-builtins.o \
	elna/ast.o \
	elna/driver.o \
	elna/lexer.o \
	elna/parser.o \
	elna/result.o \
	$(END)

elna1$(exeext): attribs.o $(elna_OBJS) $(BACKEND) $(LIBDEPS)
	+$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
	      attribs.o $(elna_OBJS) $(BACKEND) $(LIBS) $(BACKENDLIBS)

elna.all.cross:

elna.start.encap: gelna$(exeext)
elna.rest.encap:

# No elna-specific selftests.
selftest-elna:

ELNA_TEXI_FILES = \
  elna/gcc/gelna.texi \
  $(srcdir)/doc/include/fdl.texi \
  $(srcdir)/doc/include/gpl_v3.texi \
  $(srcdir)/doc/include/funding.texi \
  $(srcdir)/doc/include/gcc-common.texi \
  gcc-vers.texi

elna.install-common: installdirs
	-rm -f $(DESTDIR)$(bindir)/$(ELNA_INSTALL_NAME)$(exeext)
	$(INSTALL_PROGRAM) gelna$(exeext) $(DESTDIR)$(bindir)/$(ELNA_INSTALL_NAME)$(exeext)
	rm -f $(DESTDIR)$(bindir)/$(ELNA_TARGET_INSTALL_NAME)$(exeext); \
	( cd $(DESTDIR)$(bindir) && \
      $(LN) $(ELNA_INSTALL_NAME)$(exeext) $(ELNA_TARGET_INSTALL_NAME)$(exeext) ); \

$(build_htmldir)/gelna/index.html: $(ELNA_TEXI_FILES)
	$(mkinstalldirs) $(@D)
	rm -f $(@D)/*
	$(TEXI2HTML) -I $(gcc_docdir)/include -I $(srcdir)/elna -o $(@D) $<

# Required goals, they still do nothing
elna.install-man:
elna.install-info:
elna.install-pdf:
elna.install-plugin:

elna.install-html: $(build_htmldir)/gelna
	@$(NORMAL_INSTALL)
	test -z "$(htmldir)" || $(mkinstalldirs) "$(DESTDIR)$(htmldir)"
	@for p in $(build_htmldir)/gelna; do \
	  if test -f "$$p" || test -d "$$p"; then d=""; else d="$(srcdir)/"; fi; \
	  f=$(html__strip_dir) \
	  if test -d "$$d$$p"; then \
	    echo " $(mkinstalldirs) '$(DESTDIR)$(htmldir)/$$f'"; \
	    $(mkinstalldirs) "$(DESTDIR)$(htmldir)/$$f" || exit 1; \
	    echo " $(INSTALL_DATA) '$$d$$p'/* '$(DESTDIR)$(htmldir)/$$f'"; \
	    $(INSTALL_DATA) "$$d$$p"/* "$(DESTDIR)$(htmldir)/$$f"; \
	  else \
	    echo " $(INSTALL_DATA) '$$d$$p' '$(DESTDIR)$(htmldir)/$$f'"; \
	    $(INSTALL_DATA) "$$d$$p" "$(DESTDIR)$(htmldir)/$$f"; \
	  fi; \
	done

elna.info:
elna.dvi:
elna.pdf:
elna.html: $(build_htmldir)/gelna/index.html
elna.man:
elna.mostlyclean:
elna.clean:
elna.distclean:
elna.maintainer-clean:

# make uninstall
elna.uninstall:
	-rm -f gelna$(exeext) elna1$(exeext)
	-rm -f $(elna_OBJS)

# Used for handling bootstrap
elna.stage1: stage1-start
	-mv elna/*$(objext) stage1/elna
elna.stage2: stage2-start
	-mv elna/*$(objext) stage2/elna
elna.stage3: stage3-start
	-mv elna/*$(objext) stage3/elna
elna.stage4: stage4-start
	-mv elna/*$(objext) stage4/elna
elna.stageprofile: stageprofile-start
	-mv elna/*$(objext) stageprofile/elna
elna.stagefeedback: stagefeedback-start
	-mv elna/*$(objext) stagefeedback/elna

ELNA_INCLUDES = -I $(srcdir)/elna/include -I elna/generated
ELNA_CXXFLAGS = -std=c++11

elna/%.o: elna/boot/%.cc elna/generated/parser.hh elna/generated/location.hh
	$(COMPILE) $(ELNA_CXXFLAGS) $(ELNA_INCLUDES) $<
	$(POSTCOMPILE)

elna/%.o: elna/generated/%.cc elna/generated/parser.hh elna/generated/location.hh
	$(COMPILE) $(ELNA_CXXFLAGS) $(ELNA_INCLUDES) $<
	$(POSTCOMPILE)

elna/%.o: elna/gcc/%.cc elna/generated/parser.hh elna/generated/location.hh
	$(COMPILE) $(ELNA_CXXFLAGS) $(ELNA_INCLUDES) $<
	$(POSTCOMPILE)

elna/generated/parser.cc: elna/boot/parser.yy
	mkdir -p $(dir $@)
	$(BISON) -d -o $@ $<

elna/generated/parser.hh elna/generated/location.hh: elna/generated/parser.cc
	@touch $@

elna/generated/lexer.cc: elna/boot/lexer.ll
	mkdir -p $(dir $@)
	$(FLEX) -o $@ $<