2/19 modula2 front end: Make-lang.in

  The makefile fragment for modula2 which builds the gm2 driver and cc1gm2.

 
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On Mon, Oct 10, 2022 at 5:34 PM Gaius Mulley via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
>
>
> The makefile fragment for modula2 which builds the gm2 driver and cc1gm2.
>
>
> ------8<----------8<----------8<----------8<----------8<----------8<----
> diff -ruw /dev/null gcc-git-devel-modula2/gcc/m2/Make-lang.in
> --- /dev/null   2022-08-24 16:22:16.888000070 +0100
> +++ gcc-git-devel-modula2/gcc/m2/Make-lang.in   2022-10-07 20:21:18.634096743 +0100
> @@ -0,0 +1,1556 @@
> +# Top level -*- makefile -*- fragment for GNU M2.
> +
> +# Copyright (C) 2000-2022 Free Software Foundation, Inc.
> +
> +#This file is part of GCC.
> +
> +#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/>.
> +
> +GM2_MAKE_DEBUG=
> +
> +# Actual names to use when installing a native compiler.
> +GM2_INSTALL_NAME = $(shell echo gm2|sed '$(program_transform_name)')
> +GM2_TARGET_INSTALL_NAME = $(target_noncanonical)-$(shell echo gm2|sed '$(program_transform_name)')
> +
> +# Actual names to use when installing a cross-compiler.
> +GM2_CROSS_NAME = `echo gm2|sed '$(program_transform_cross_name)'`
> +
> +M2_MAINTAINER = no
> +
> +CPP_GM2=-fpermissive -DIN_GCC -g

Do we really need -fpermissive here?

> +GM2_1 = ./gm2 -B./stage1/m2 -g -fm2-g
> +
> +GM2_FOR_TARGET = $(STAGE_CC_WRAPPER) ./gm2 -B./ -B$(build_tooldir)/bin/ -L$(objdir)/../ld $(TFLAGS)
> +
> +TEXISRC = $(objdir)/m2/images/gnu.eps \
> +          $(srcdir)/doc/gm2.texi \
> +          m2/gm2-libs.texi \
> +          m2/gm2-ebnf.texi \
> +          m2/SYSTEM-pim.texi \
> +          m2/SYSTEM-iso.texi \
> +          m2/Builtins.texi
> +

That will need Sphinx treatment

> +# Define the names for selecting modula-2 in LANGUAGES.
> +m2 modula-2 modula2: gm2$(exeext) xgcc$(exeext) cc1gm2$(exeext) \
> +                 $(GCC_PASSES) $(GCC_PARTS)
> +m2.serial = cc1gm2$(exeext)
> +
> +# Tell GNU make to ignore these if they exist.
> +.PHONY: m2 modula-2 modula2
> +
> +GM2_PROG_DEP=gm2$(exeext) xgcc$(exeext) cc1gm2$(exeext)
> +
> +include m2/config-make
> +LIBSTDCXX=../$(TARGET_SUBDIR)/libstdc++-v3/src/.libs/libstdc++.a
> +
> +PGE=m2/pge$(exeext)
> +
> +SRC_PREFIX=G
> +
> +m2/gm2spec.o: $(srcdir)/m2/gm2spec.cc $(SYSTEM_H) $(GCC_H) $(CONFIG_H) \
> +               m2/gm2config.h $(TARGET_H) $(PLUGIN_HEADERS) \
> +               $(generated_files) $(C_TREE_H) insn-attr-common.h
> +       (SHLIB_LINK='$(SHLIB_LINK)' \
> +       SHLIB_MULTILIB='$(SHLIB_MULTILIB)'; \
> +       $(COMPILER) $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
> +         $(DRIVER_DEFINES) \
> +               -DLIBSUBDIR=\"$(libsubdir)\" \
> +                -DPREFIX=\"$(prefix)\" \
> +                -c $(srcdir)/m2/gm2spec.cc $(OUTPUT_OPTION))
> +
> +# Create the compiler driver for M2.
> +CFLAGS-m2/m2/gm2spec.o += $(DRIVER_DEFINES)
> +
> +GM2_OBJS = $(GCC_OBJS) prefix.o intl.o m2/gm2spec.o
> +
> +# Create the compiler driver for gm2.
> +gm2$(exeext): $(GM2_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a $(LIBDEPS) \
> +    m2/gm2config.h
> +       +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
> +         $(GM2_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a \
> +         $(EXTRA_GCC_LIBS) $(LIBS)
> +
> +# Create a version of the gm2 driver which calls the cross-compiler.
> +gm2-cross$(exeext): gm2$(exeext)
> +       -rm -f gm2-cross$(exeext)
> +       cp gm2$(exeext) gm2-cross$(exeext)
> +
> +po-generated:
> +
> +# Build hooks:
> +
> +m2.all.cross: gm2-cross$(exeext) plugin/m2rte$(exeext).so
> +
> +m2.start.encap: gm2$(exeext) plugin/m2rte$(exeext).so
> +m2.rest.encap:
> +
> +m2.info: doc/m2.info
> +
> +m2.man: doc/m2.1
> +
> +m2.install-man: $(DESTDIR)$(man1dir)/$(GM2_INSTALL_NAME)$(man1ext)
> +
> +$(DESTDIR)$(man1dir)/$(GM2_INSTALL_NAME)$(man1ext): doc/m2.1 installdirs
> +       -rm -f $@
> +       -$(INSTALL_DATA) $< $@
> +       -chmod a-x $@
> +
> +m2.dvi: $(TEXISRC)
> +       $(TEXI2DVI) -I $(objdir)/m2 -I $(srcdir)/doc/include $(srcdir)/doc/gm2.texi -o $@
> +
> +m2.ps: m2.dvi
> +       dvips -o $@ $<
> +
> +m2.pdf: m2.ps
> +       gs -q -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=$@ $<
> +
> +.INTERMEDIATE: gm2.pod
> +
> +m2.pod: doc/gm2.texi $(TEXISRC)
> +       -$(TEXI2POD) -I $(objdir)/m2 -D m2 < $< > $@

Likewise for the doc parts above and below

> +doc/m2.info: $(TEXISRC)
> +       if test "x$(BUILD_INFO)" = xinfo; then \
> +         rm -f doc/m2.info*; \
> +          $(MAKEINFO) --no-headers -I$(objdir)/m2 -I$(srcdir)/doc/include \
> +                      -o $@ $(srcdir)/doc/gm2.texi ; \
> +       else true; fi
> +
> +$(objdir)/m2/images/gnu.eps: $(srcdir)/m2/images/gnupng
> +       test -d m2/images || mkdir -p m2/images
> +       if [ -f $(srcdir)/m2/images/gnu.eps ] ; then \
> +           cp $(srcdir)/m2/images/gnu.eps $@ ; \
> +        else \
> +           pngtopnm $< | pnmtops -noturn > $@ ; \
> +        fi
> +
> +m2/gm2-libs.texi: gm2-libs.texi-check; @true
> +
> +gm2-libs.texi-check:  m2/SYSTEM-pim.texi m2/SYSTEM-iso.texi m2/Builtins.texi \
> +                      $(objdir)/m2/gm2-libs-coroutines/SYSTEM.def m2/gm2-ebnf.texi
> +       python3 $(srcdir)/m2/tools-src/def2texi.py -uLibraries -s$(srcdir)/m2 -b$(objdir)/m2 > $(objdir)/m2/gm2-libs.texi
> +       $(STAMP) gm2-libs.texi-check
> +
> +m2/gm2-ebnf.texi: gm2-ebnf.texi-check; @true
> +
> +gm2-ebnf.texi-check: $(PGE) $(srcdir)/m2/gm2-compiler/P0SyntaxCheck.bnf
> +       $(PGE) -c -p -t -f $(srcdir)/m2/gm2-compiler/P0SyntaxCheck.bnf > m2/gm2-ebnf.texi
> +       $(STAMP) gm2-ebnf.texi-check
> +
> +m2/SYSTEM-pim.texi: SYSTEM-pim-texi-check; @true
> +
> +SYSTEM-pim-texi-check: $(objdir)/m2/gm2-libs/SYSTEM.def
> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b$(objdir)/m2 -f$(objdir)/m2/gm2-libs/SYSTEM.def > $(objdir)/m2/SYSTEM-pim.texi
> +       $(STAMP) SYSTEM-pim-texi-check
> +
> +m2/SYSTEM-iso.texi:  SYSTEM-iso.texi-check; @true
> +
> +SYSTEM-iso.texi-check:  $(objdir)/m2/gm2-libs-iso/SYSTEM.def
> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b$(objdir)/m2 -f$(objdir)/m2/gm2-libs-iso/SYSTEM.def > $(objdir)/m2/SYSTEM-iso.texi
> +       $(STAMP) SYSTEM-iso.texi-check
> +
> +m2/Builtins.texi:  Builtins.texi-check; @true
> +
> +Builtins.texi-check:  m2/gm2-libs/Builtins.def
> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b./ -f$(srcdir)/m2/gm2-libs/Builtins.def > $(objdir)/m2/Builtins.texi
> +       $(STAMP) Builtins.texi-check
> +
> +$(objdir)/m2/gm2-compiler-boot:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-boot:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libiberty:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-gcc:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-compiler:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-iso:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-min:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-compiler-paranoid:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-paranoid:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-compiler-verify:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/boot-bin:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-pim:
> +       test -d $@ || mkdir $@
> +
> +$(objdir)/m2/gm2-libs-coroutines:
> +       test -d $@ || mkdir $@
> +
> +stage1/m2:
> +       -test -d $@ || mkdir -p stage1/m2
> +
> +stage2/m2:
> +       -test -d $@ || mkdir -p stage2/m2
> +
> +stage3/m2:
> +       -test -d $@ || mkdir -p stage3/m2
> +
> +stage4/m2:
> +       -test -d $@ || mkdir -p stage4/m2
> +
> +# No gm2-specific selftests
> +selftest-m2:
> +
> +# Install hooks:
> +# cc1gm2 is installed elsewhere as part of $(COMPILERS).
> +# $(COMPILERS) is defined in `config-lang.in'
> +
> +m2.install-common: installdirs
> +       -rm -f $(DESTDIR)$(bindir)/$(GM2_INSTALL_NAME)$(exeext)
> +       $(INSTALL_PROGRAM) gm2$(exeext) $(DESTDIR)$(bindir)/$(GM2_INSTALL_NAME)$(exeext)
> +       -if test -f cc1gm2$(exeext); then \
> +         if test -f gm2-cross$(exeext); then \
> +           :; \
> +         else \
> +           rm -f $(DESTDIR)$(bindir)/$(GM2_TARGET_INSTALL_NAME)$(exeext); \
> +           ( cd $(DESTDIR)$(bindir) && \
> +             $(LN) $(GM2_INSTALL_NAME)$(exeext) $(GM2_TARGET_INSTALL_NAME)$(exeext) ); \
> +         fi; \
> +       fi
> +       -for tool in cc1gm2$(exeext); do \
> +             if [ -f $$tool ]; then \
> +               rm -f $(DESTDIR)$(libexecsubdir)/$$tool; \
> +               $(INSTALL_PROGRAM) $$tool $(DESTDIR)$(libexecsubdir)/$$tool; \
> +               chmod a+x $(DESTDIR)$(libexecsubdir)/$$tool; \
> +             else \
> +               echo "cannot find $$tool" ; \
> +             fi ; \
> +         done
> +
> +m2.install-info: installdirs
> +       if [ -d gm2$(exeext) ] ; then \
> +         if [ -f $(objdir)/doc/gm2.info ]; then \
> +           rm -f $(DESTDIR)$(infodir)/gm2.info*; \
> +           for f in $(objdir)/doc/gm2.info*; do \
> +             realfile=`echo $$f | sed -e 's|.*/\([^/]*\)$$|\1|'`; \
> +              rm -f $(DESTDIR)$(infodir)/`basename $$realfile`; \
> +             $(INSTALL_DATA) $$f $(DESTDIR)$(infodir)/`basename $$realfile`; \
> +           done; \
> +           chmod a-x $(DESTDIR)$(infodir)/gm2.info*; \
> +         else true; fi; \
> +       else true; fi
> +       -if [ -f gm2$(exeext) ] && [ -f $(DESTDIR)$(infodir)/gm2.info ]; then \
> +         if $(SHELL) -c 'install-info --version' >/dev/null 2>&1; then \
> +           install-info --dir-file=$(infodir)/dir $(DESTDIR)$(infodir)/gm2.info; \
> +         else true; fi; \
> +       else true; fi
> +
> +m2.install-normal: m2.install-common m2.install-info m2.install-man
> +
> +# This target will install GM2 into an existing GCC installation,
> +# without overwriting existing files.
> +# The semicolon is to prevent the install.sh -> install default rule
> +# from doing anything.  Having it run true helps avoid problems and
> +# noise from versions of make which don't like to have null commands.
> +m2.install: m2.install-normal; @true
> +
> +gm2.install-with-gcc: $(INSTALL_HEADERS) gm2.install $(INSTALL_LIBGCC)
> +       for file in $(GCC_PASSES); do \
> +          if [ x"$$file" != x"xgcc$(exeext)" ]; then \
> +            rm -f $(DESTDIR)$(libsubdir)/$$file; \
> +            $(INSTALL_PROGRAM) $$file $(DESTDIR)$(libsubdir)/$$file || exit 1; \
> +          fi; \
> +        done; exit 0
> +
> +m2.uninstall:
> +       -rm -rf $(bindir)/$(GM2_INSTALL_NAME)
> +       -rm -rf $(bindir)/$(GM2_CROSS_NAME)
> +
> +m2.install-plugin: installdirs
> +       $(mkinstalldirs) $(DESTDIR)$(plugin_resourcesdir)
> +       $(INSTALL_PROGRAM) plugin/m2rte$(exeext).so $(DESTDIR)$(plugin_resourcesdir)/m2rte$(exeext).so
> +       chmod a+x $(DESTDIR)$(plugin_resourcesdir)/m2rte$(exeext).so
> +
> +plugin/m2rte$(exeext).so: $(srcdir)/m2/plugin/m2rte.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2) \
> +        insn-attr-common.h insn-flags.h $(generated_files)
> +       test -d plugin || mkdir plugin
> +       $(PLUGINCC) $(PLUGINCFLAGS) -fno-rtti -I. -I$(srcdir) -I$(srcdir)/m2 -I$(srcdir)/m2/gm2-gcc -I$(srcdir)/../include -I$(srcdir)/../libcpp/include -Wall $(GMPINC) -Wno-literal-suffix -fPIC -c -o plugin/m2rte.o $(srcdir)/m2/plugin/m2rte.cc
> +       $(PLUGINCC) $(PLUGINCFLAGS) $(PLUGINLIBS) -fno-rtti plugin/m2rte.o -shared -o $@
> +
> +
> +# Clean hooks:
> +# A lot of the ancillary files are deleted by the main makefile.
> +# We just have to delete files specific to us.
> +
> +m2.mostlyclean:
> +       -rm -f m2/*.o
> +
> +m2.clean:
> +       -rm -f m2/*.o
> +       -rm -f m2/gm2-libs/config.*
> +       -rm m2/gm2-libs/gm2-libs-host.h m2/gm2config.h
> +
> +m2.extraclean:
> +m2.realclean:
> +
> +# Stage hooks:
> +
> +m2.stage1: stage1-start
> +       -mv m2/*$(objext) stage1/m2
> +
> +m2.stage2: stage2-start
> +       -mv m2/*$(objext) stage2/m2
> +
> +m2.stage3: stage3-start
> +       -mv m2/*$(objext) stage3/m2
> +
> +m2.stage4: stage4-start
> +       -mv m2/*$(objext) stage4/m2
> +
> +quit: force
> +       echo "calling exit"
> +       exit 1
> +
> +# Rules to build the compiler, pge and mc.
> +
> +# MC_COPYRIGHT=--gpl-header --project="GNU Modula-2"
> +MC_COPYRIGHT=
> +
> +MC_ARGS= --olang=c++ \
> + --h-file-prefix=$(SRC_PREFIX) \
> + -I$(srcdir)/m2/gm2-libs \
> + -I$(srcdir)/m2/gm2-compiler \
> + -I$(srcdir)/m2/gm2-libiberty \
> + -I$(srcdir)/m2/gm2-gcc \
> + --quiet \
> + $(MC_COPYRIGHT) \
> + --gcc-config-system
> +
> +MCDEPS=m2/boot-bin/mc$(exeext)
> +
> +MC=m2/boot-bin/mc$(exeext) $(MC_ARGS)
> +
> +MC_LIBS=m2/mc-boot-ch/Glibc.o m2/mc-boot-ch/Gmcrts.o
> +
> +M2LINK=m2/boot-bin/mklink$(exeext)
> +GM2_O=
> +GM2_O_S3=-O
> +GM2_OS=-Os
> +GM2_G=-g -fm2-g
> +GM2_CPP=
> +# GM2_DEBUG_STRMEM=-fcpp
> +GM2_DEBUG_STRMEM=
> +GM2_FLAGS=-Wunused-variable -fsoft-check-all $(GM2_G) $(GM2_O) \
> + -funbounded-by-reference -fpim -fextended-opaque \
> + -Wpedantic-cast -Wpedantic-param-names -ffunction-sections \
> + -fdata-sections $(GM2_CPP) # -fauto-init
> +GM2_ISO_FLAGS=-fsoft-check-all $(GM2_G) $(GM2_O) \
> + -funbounded-by-reference -fiso -fextended-opaque \
> + -Wpedantic-cast -Wpedantic-param-names -ffunction-sections \
> + -fdata-sections $(GM2_CPP)
> +GM2_MIN_FLAGS=$(GM2_G) $(GM2_OS) \
> + -funbounded-by-reference -fextended-opaque \
> + -Wpedantic-cast -Wpedantic-param-names -fno-exceptions \
> + -ffunction-sections -fdata-sections $(GM2_CPP)
> +
> +O2=-O2 -g
> +SO_O2=-O2 -g -fPIC
> +SO=-O0 -g -fPIC
> +
> +# Language-specific object files for the gm2 compiler.
> +
> +GM2_C_OBJS        = m2/gm2-lang.o \
> +                    m2/stor-layout.o \
> +                    m2/m2pp.o \
> +                    m2/gm2-gcc/m2assert.o \
> +                    m2/gm2-gcc/m2block.o \
> +                    m2/gm2-gcc/m2builtins.o \
> +                    m2/gm2-gcc/m2except.o \
> +                    m2/gm2-gcc/m2color.o \
> +                    m2/gm2-gcc/m2configure.o \
> +                    m2/gm2-gcc/m2convert.o \
> +                    m2/gm2-gcc/m2decl.o \
> +                    m2/gm2-gcc/m2expr.o \
> +                    m2/gm2-gcc/m2linemap.o \
> +                    m2/gm2-gcc/m2statement.o \
> +                    m2/gm2-gcc/m2type.o \
> +                    m2/gm2-gcc/m2tree.o \
> +                    m2/gm2-gcc/m2treelib.o \
> +                    m2/gm2-gcc/m2top.o \
> +                    m2/gm2-gcc/m2misc.o \
> +                    m2/gm2-gcc/init.o
> +GM2_LIBS          = m2/gm2-compiler/gm2.a \
> +                    ../$(target_subdir)/libgm2/libm2pim/.libs/libm2pim.a m2/gm2-libs-boot/choosetemp.o
> +
> +GM2_LIBS_BOOT     = m2/gm2-compiler-boot/gm2.a \
> +                    m2/gm2-libs-boot/libgm2.a \
> +                    $(GM2-BOOT-O)
> +GM2_LIBS_PARANOID = m2/gm2-compiler-paranoid/gm2.a \
> +                    m2/gm2-libs-paranoid/libgm2.a                       # build it again using GM2_LIBS
> +
> +gm2.paranoid: stage3/m2/cc1gm2$(exeext) gm2.verifyparanoid
> +
> +cc1gm2$(exeext): stage1/m2/cc1gm2$(exeext) $(m2.prev)
> +       cp -p $< $@
> +
> +stage3/m2/cc1gm2$(exeext): stage2/m2/cc1gm2$(exeext) m2/gm2-compiler-paranoid/m2flex.o \
> +                            $(P) $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) $(GM2_LIBS_PARANOID) \
> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so
> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler-paranoid/m2flex.o \
> +                            attribs.o \
> +                              $(GM2_LIBS_PARANOID) \
> +                              $(BACKEND) $(LIBS) m2/gm2-gcc/rtegraph.o \
> +                              $(BACKENDLIBS) $(LIBSTDCXX) -lm
> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)
> +
> +stage2/m2/cc1gm2$(exeext): stage1/m2/cc1gm2$(exeext) m2/gm2-compiler/m2flex.o $(P) \
> +                            $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) $(GM2_LIBS) \
> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so
> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler/m2flex.o \
> +                            attribs.o \
> +                              $(GM2_LIBS) \
> +                              $(BACKEND) $(LIBS) m2/gm2-gcc/rtegraph.o \
> +                              $(BACKENDLIBS) $(LIBSTDCXX) -lm
> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)
> +
> +stage1/m2/cc1gm2$(exeext): gm2$(exeext) m2/gm2-compiler-boot/m2flex.o \
> +                            $(P) $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) \
> +                            $(GM2_LIBS_BOOT) $(MC_LIBS) \
> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so \
> +                            m2/gm2-libs-boot/M2LINK.o \
> +                            $(m2.prev)
> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler-boot/m2flex.o \
> +                            attribs.o \
> +                             $(GM2_LIBS_BOOT) $(MC_LIBS) \
> +                             m2/gm2-gcc/rtegraph.o m2/gm2-libs-boot/M2LINK.o \
> +                             $(BACKEND) $(LIBS) $(BACKENDLIBS)
> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)

It looks like you are employing your own bootstrapping scheme here?
In theory one could
use --enable-stage1-languages=m2 and the stage1 built compiler could
be used to shorten the above
for stage2 and stage3?

Likewise it might be feasible to provide a --with-system-gm2?

Anyway, I can't spot any obvious issues in this file (but it's large).
I think exposing this to a wider audience
earlier is most important at this point.

Thus OK.

Thanks,
Richard.

> +# Compiling object files from source files.
> +
> +GCC_HEADER_DEPENDENCIES_FOR_M2 = $(BUILD-BOOT-H) $(TIMEVAR_H) m2/gm2config.h $(CONFIG_H) \
> +        $(TREE_H) $(RTL_H) $(TARGET_H) $(PLUGIN_HEADERS) \
> +        $(BCONFIG_H) $(CORETYPES_H) $(SYSTEM_H) \
> +        $(srcdir)/flags.h gtype-m2.h \
> +        $(generated_files) insn-attr-common.h
> +
> +m2/gm2-gcc/%.o: $(srcdir)/m2/gm2-gcc/%.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2)
> +       $(COMPILER) -c -g $(ALL_COMPILERFLAGS) \
> +             $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +m2/gm2-gcc/m2configure.o: $(srcdir)/m2/gm2-gcc/m2configure.cc \
> +               $(SYSTEM_H) $(GCC_H) $(CONFIG_H) \
> +               m2/gm2config.h $(TARGET_H) $(PLUGIN_HEADERS) \
> +               $(generated_files) $(C_TREE_H) insn-attr-common.h
> +       $(COMPILER) $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
> +         $(DRIVER_DEFINES) \
> +               -DLIBSUBDIR=\"$(libsubdir)\" \
> +                -DPREFIX=\"$(prefix)\" \
> +                -c $(srcdir)/m2/gm2-gcc/m2configure.cc $(OUTPUT_OPTION)
> +
> +m2/gm2-lang.o: $(srcdir)/m2/gm2-lang.cc gt-m2-gm2-lang.h $(GCC_HEADER_DEPENDENCIES_FOR_M2)
> +       $(COMPILER) -c -g -I$(GM2GCC) $(ALL_COMPILERFLAGS) \
> +            $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +m2/stor-layout.o: $(srcdir)/stor-layout.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2)
> +       $(COMPILER) -c -DSET_WORD_SIZE=INT_TYPE_SIZE $(ALL_COMPILERFLAGS) \
> +            $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +m2/m2pp.o : $(srcdir)/m2/m2pp.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2)
> +       $(COMPILER) -c -g -DGM2 $(ALL_COMPILERFLAGS) \
> +            $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +m2/gm2-gcc/rtegraph.o: $(srcdir)/m2/gm2-gcc/rtegraph.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2) \
> +                       gt-m2-rtegraph.h
> +       $(COMPILER) -c -g -I$(GM2GCC) $(ALL_COMPILERFLAGS) \
> +            $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +c-family/m2pp.o : $(srcdir)/m2/m2pp.cc $(GCC_HEADER_DEPENDENCIES_FOR_M2)
> +       $(COMPILER) -c -g $(ALL_COMPILERFLAGS) \
> +            $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
> +
> +m2/gm2-gcc/$(SRC_PREFIX)%.h: $(srcdir)/m2/gm2-gcc/%.def $(MCDEPS)
> +       $(MC) -o=$@ $(srcdir)/m2/gm2-gcc/$*.def
> +
> +# The following tables define the source files which are translated into C using mc
> +# and defines the system interface C files.
> +
> +# Core library definition modules found in gm2-libs.
> +
> +GM2-LIBS-BOOT-DEFS = \
> +   ASCII.def \
> +   Args.def \
> +   Assertion.def \
> +   Break.def \
> +   CmdArgs.def \
> +   Debug.def \
> +   DynamicStrings.def \
> +   Environment.def \
> +   FIO.def \
> +   FormatStrings.def \
> +   FpuIO.def \
> +   IO.def \
> +   Indexing.def \
> +   M2Dependent.def \
> +   M2EXCEPTION.def \
> +   M2LINK.def \
> +   M2RTS.def \
> +   NumberIO.def \
> +   PushBackInput.def \
> +   RTExceptions.def \
> +   SArgs.def \
> +   SEnvironment.def \
> +   SFIO.def \
> +   SYSTEM.def \
> +   Scan.def \
> +   StdIO.def \
> +   Storage.def \
> +   StrCase.def \
> +   StrIO.def \
> +   StrLib.def \
> +   StringConvert.def \
> +   SysExceptions.def \
> +   SysStorage.def \
> +   TimeString.def \
> +   UnixArgs.def \
> +   dtoa.def \
> +   errno.def \
> +   ldtoa.def \
> +   libc.def \
> +   libm.def \
> +   termios.def \
> +   wrapc.def \
> +
> +# Core library implementation modules found in gm2-libs.
> +
> +GM2-LIBS-BOOT-MODS = \
> +   ASCII.mod \
> +   Args.mod \
> +   Assertion.mod \
> +   Break.mod \
> +   CmdArgs.mod \
> +   Debug.mod \
> +   DynamicStrings.mod \
> +   Environment.mod \
> +   FIO.mod \
> +   FormatStrings.mod \
> +   FpuIO.mod \
> +   IO.mod \
> +   Indexing.mod \
> +   M2Dependent.mod \
> +   M2EXCEPTION.mod \
> +   M2RTS.mod \
> +   NumberIO.mod \
> +   PushBackInput.mod \
> +   RTExceptions.mod \
> +   SArgs.mod \
> +   SEnvironment.mod \
> +   SFIO.mod \
> +   Scan.mod \
> +   Storage.mod \
> +   StrCase.mod \
> +   StrIO.mod \
> +   StrLib.mod \
> +   StringConvert.mod \
> +   SysStorage.mod \
> +   TimeString.mod \
> +
> +# Hand translated C files and C files for definition module for "C" modules
> +# found in gm2-libs-ch.
> +
> +GM2-LIBS-BOOT-C = \
> +   StdIO.c \
> +   SysExceptions.c \
> +   choosetemp.c \
> +   errno.c \
> +   termios.c \
> +   wrapc.c \
> +
> +# C++ implemented modules found in gm2-libs-ch.
> +
> +GM2-LIBS-BOOT-CC = \
> +   UnixArgs.cc \
> +   dtoa.cc \
> +   ldtoa.cc
> +
> +# Definition modules for the front end found in gm2-compiler.
> +
> +GM2-COMP-BOOT-DEFS = \
> +   FifoQueue.def \
> +   Lists.def \
> +   M2ALU.def \
> +   M2AsmUtil.def \
> +   M2Base.def \
> +   M2BasicBlock.def \
> +   M2Batch.def \
> +   M2Bitset.def \
> +   M2CaseList.def \
> +   M2Check.def \
> +   M2Code.def \
> +   M2ColorString.def \
> +   M2Comp.def \
> +   M2Const.def \
> +   M2Debug.def \
> +   M2DebugStack.def \
> +   M2Defaults.def \
> +   M2DriverOptions.def \
> +   M2Emit.def \
> +   M2Error.def \
> +   M2EvalSym.def \
> +   M2FileName.def \
> +   M2GCCDeclare.def \
> +   M2GenGCC.def \
> +   M2Graph.def \
> +   M2LexBuf.def \
> +   M2MetaError.def \
> +   M2Optimize.def \
> +   M2Options.def \
> +   M2Pass.def \
> +   M2Preprocess.def \
> +   M2Printf.def \
> +   M2Quads.def \
> +   M2Quiet.def \
> +   M2Range.def \
> +   M2Reserved.def \
> +   M2SSA.def \
> +   M2Scaffold.def \
> +   M2Scope.def \
> +   M2Search.def \
> +   M2Size.def \
> +   M2StackAddress.def \
> +   M2StackWord.def \
> +   M2Students.def \
> +   M2Swig.def \
> +   M2System.def \
> +   NameKey.def \
> +   ObjectFiles.def \
> +   Output.def \
> +   P0SymBuild.def \
> +   P0SyntaxCheck.def \
> +   P1Build.def \
> +   P1SymBuild.def \
> +   P2Build.def \
> +   P2SymBuild.def \
> +   P3Build.def \
> +   P3SymBuild.def \
> +   PCBuild.def \
> +   PCSymBuild.def \
> +   PHBuild.def \
> +   Sets.def \
> +   SymbolConversion.def \
> +   SymbolKey.def \
> +   SymbolTable.def \
> +   bnflex.def \
> +   m2flex.def \
> +
> +# Implementation modules for the front end found in gm2-compiler.
> +
> +GM2-COMP-BOOT-MODS = \
> +   FifoQueue.mod \
> +   Lists.mod \
> +   Lists.mod \
> +   M2ALU.mod \
> +   M2AsmUtil.mod \
> +   M2Base.mod \
> +   M2BasicBlock.mod \
> +   M2Batch.mod \
> +   M2Bitset.mod \
> +   M2CaseList.mod \
> +   M2Check.mod \
> +   M2Code.mod \
> +   M2ColorString.mod \
> +   M2Comp.mod \
> +   M2Const.mod \
> +   M2Debug.mod \
> +   M2DebugStack.mod \
> +   M2Defaults.mod \
> +   M2DriverOptions.mod \
> +   M2Emit.mod \
> +   M2Error.mod \
> +   M2FileName.mod \
> +   M2GCCDeclare.mod \
> +   M2GenGCC.mod \
> +   M2Graph.mod \
> +   M2LexBuf.mod \
> +   M2MetaError.mod \
> +   M2Optimize.mod \
> +   M2Options.mod \
> +   M2Pass.mod \
> +   M2Preprocess.mod \
> +   M2Printf.mod \
> +   M2Quads.mod \
> +   M2Quiet.mod \
> +   M2Range.mod \
> +   M2Reserved.mod \
> +   M2SSA.mod \
> +   M2Scaffold.mod \
> +   M2Scope.mod \
> +   M2Search.mod \
> +   M2Size.mod \
> +   M2StackAddress.mod \
> +   M2StackWord.mod \
> +   M2Students.mod \
> +   M2Swig.mod \
> +   M2System.mod \
> +   NameKey.mod \
> +   NameKey.mod \
> +   ObjectFiles.mod \
> +   Output.mod \
> +   P0SymBuild.mod \
> +   P1SymBuild.mod \
> +   P2SymBuild.mod \
> +   P3SymBuild.mod \
> +   PCSymBuild.mod \
> +   Sets.mod \
> +   SymbolConversion.mod \
> +   SymbolKey.mod \
> +   SymbolKey.mod \
> +   SymbolTable.mod \
> +   bnflex.mod \
> +
> +# The interface between the modula-2 front end and gimple/trees found in directory gm2-gcc.
> +
> +GM2-GCC-DEFS = \
> +   m2block.def \
> +   m2builtins.def \
> +   m2color.def \
> +   m2configure.def \
> +   m2convert.def \
> +   m2decl.def \
> +   m2except.def \
> +   m2except.def \
> +   m2expr.def \
> +   m2linemap.def \
> +   m2misc.def \
> +   m2statement.def \
> +   m2top.def \
> +   m2tree.def \
> +   m2treelib.def \
> +   m2type.def \
> +
> +# The following lists define the source files used to build gm2 using Modula-2
> +# sources directly.
> +#
> +# cc1gm2$(exeext) uses these definition modules from the core libraries.
> +
> +GM2-LIBS-DEFS = \
> +   ASCII.def \
> +   Args.def \
> +   Assertion.def \
> +   Break.def \
> +   Builtins.def \
> +   COROUTINES.def \
> +   CmdArgs.def \
> +   Debug.def \
> +   DynamicStrings.def \
> +   Environment.def \
> +   FIO.def \
> +   FormatStrings.def \
> +   FpuIO.def \
> +   GetOpt.def \
> +   IO.def \
> +   Indexing.def \
> +   LMathLib0.def \
> +   LegacyReal.def \
> +   M2Dependent.def \
> +   M2EXCEPTION.def \
> +   M2LINK.def \
> +   M2RTS.def \
> +   MathLib0.def \
> +   MemUtils.def \
> +   NumberIO.def \
> +   PushBackInput.def \
> +   RTExceptions.def \
> +   RTint.def \
> +   SArgs.def \
> +   SEnvironment.def \
> +   SFIO.def \
> +   SMathLib0.def \
> +   SYSTEM.def \
> +   Scan.def \
> +   StdIO.def \
> +   Storage.def \
> +   StrCase.def \
> +   StrIO.def \
> +   StrLib.def \
> +   StringConvert.def \
> +   SysStorage.def \
> +   TimeString.def \
> +   UnixArgs.def \
> +   cbuiltin.def \
> +   dtoa.def \
> +   ldtoa.def \
> +   libc.def \
> +   termios.def \
> +   wrapc.def \
> +
> +# cc1gm2$(exeext) uses these implementation modules from the core libraries.
> +
> +GM2-LIBS-MODS = \
> +   ASCII.mod \
> +   Args.mod \
> +   Assertion.mod \
> +   Break.mod \
> +   Builtins.mod \
> +   COROUTINES.mod \
> +   CmdArgs.mod \
> +   Debug.mod \
> +   DynamicStrings.mod \
> +   Environment.mod \
> +   FIO.mod \
> +   FormatStrings.mod \
> +   FpuIO.mod \
> +   GetOpt.mod \
> +   IO.mod \
> +   Indexing.mod \
> +   LMathLib0.mod \
> +   LegacyReal.mod \
> +   M2Dependent.mod \
> +   M2EXCEPTION.mod \
> +   M2RTS.mod \
> +   MathLib0.mod \
> +   MemUtils.mod \
> +   NumberIO.mod \
> +   PushBackInput.mod \
> +   RTExceptions.mod \
> +   RTint.mod \
> +   SArgs.mod \
> +   SEnvironment.mod \
> +   SFIO.mod \
> +   SMathLib0.mod \
> +   SYSTEM.mod \
> +   Scan.mod \
> +   StdIO.mod \
> +   Storage.mod \
> +   StrCase.mod \
> +   StrIO.mod \
> +   StrLib.mod \
> +   StringConvert.mod \
> +   SysStorage.mod \
> +   TimeString.mod \
> +
> +# cc1gm2$(exeext) uses these C modules from the core libraries.
> +
> +GM2-LIBS-C = \
> +   Selective.c \
> +   SysExceptions.c \
> +   cgetopt.c \
> +   choosetemp.c \
> +   errno.c \
> +   host.c \
> +   termios.c \
> +   wrapc.c \
> +
> +# cc1gm2$(exeext) uses these C++ modules from the core libraries.
> +
> +GM2-LIBS-CC = \
> +   UnixArgs.cc \
> +   dtoa.cc \
> +   ldtoa.cc \
> +
> +# cc1gm2$(exeext) uses these definition modules found in the gm2-compiler directory.
> +
> +GM2-COMP-DEFS = \
> +   FifoQueue.def \
> +   Lists.def \
> +   M2ALU.def \
> +   M2AsmUtil.def   \
> +   M2Base.def \
> +   M2BasicBlock.def \
> +   M2Batch.def \
> +   M2Bitset.def \
> +   M2CaseList.def \
> +   M2Check.def \
> +   M2Code.def \
> +   M2ColorString.def \
> +   M2Comp.def \
> +   M2Const.def \
> +   M2Debug.def \
> +   M2DebugStack.def \
> +   M2Defaults.def \
> +   M2DriverOptions.def \
> +   M2Emit.def \
> +   M2Error.def \
> +   M2FileName.def \
> +   M2GCCDeclare.def \
> +   M2GenGCC.def \
> +   M2Graph.def \
> +   M2LexBuf.def \
> +   M2MetaError.def \
> +   M2Optimize.def \
> +   M2Options.def \
> +   M2Pass.def \
> +   M2Preprocess.def \
> +   M2Printf.def \
> +   M2Quads.def     \
> +   M2Quiet.def \
> +   M2Range.def \
> +   M2Reserved.def \
> +   M2SSA.def \
> +   M2Scaffold.def \
> +   M2Scope.def \
> +   M2Search.def \
> +   M2Size.def \
> +   M2StackAddress.def \
> +   M2StackWord.def \
> +   M2Students.def \
> +   M2Swig.def \
> +   M2System.def \
> +   NameKey.def \
> +   ObjectFiles.def \
> +   P0SymBuild.def \
> +   P0SyntaxCheck.def \
> +   P1Build.def \
> +   P1SymBuild.def \
> +   P2Build.def \
> +   P2SymBuild.def \
> +   P3Build.def \
> +   P3SymBuild.def \
> +   PCBuild.def \
> +   PCSymBuild.def \
> +   PHBuild.def \
> +   Sets.def \
> +   SymbolConversion.def \
> +   SymbolKey.def \
> +   SymbolTable.def \
> +   bnflex.def \
> +
> +# cc1gm2$(exeext) uses these implementation modules found in the gm2-compiler directory.
> +
> +GM2-COMP-MODS = \
> +   FifoQueue.mod \
> +   Lists.mod \
> +   M2ALU.mod \
> +   M2AsmUtil.mod \
> +   M2Base.mod \
> +   M2BasicBlock.mod \
> +   M2Batch.mod \
> +   M2Bitset.mod \
> +   M2CaseList.mod \
> +   M2Check.mod \
> +   M2Code.mod \
> +   M2ColorString.mod \
> +   M2Comp.mod \
> +   M2Const.mod \
> +   M2Debug.mod \
> +   M2DebugStack.mod \
> +   M2Defaults.mod \
> +   M2DriverOptions.mod \
> +   M2Emit.mod \
> +   M2Error.mod \
> +   M2FileName.mod \
> +   M2GCCDeclare.mod \
> +   M2GenGCC.mod \
> +   M2Graph.mod \
> +   M2LexBuf.mod \
> +   M2MetaError.mod \
> +   M2Optimize.mod \
> +   M2Options.mod \
> +   M2Pass.mod \
> +   M2Preprocess.mod \
> +   M2Printf.mod \
> +   M2Quads.mod \
> +   M2Quiet.mod \
> +   M2Range.mod \
> +   M2Reserved.mod \
> +   M2SSA.mod \
> +   M2Scaffold.mod \
> +   M2Scope.mod \
> +   M2Search.mod \
> +   M2Size.mod \
> +   M2StackAddress.mod \
> +   M2StackWord.mod \
> +   M2Students.mod \
> +   M2Swig.mod \
> +   M2System.mod \
> +   NameKey.mod \
> +   ObjectFiles.mod \
> +   Output.mod \
> +   P0SymBuild.mod \
> +   P1SymBuild.mod \
> +   P2SymBuild.mod  \
> +   P3SymBuild.mod  \
> +   PCSymBuild.mod \
> +   Sets.mod \
> +   SymbolConversion.mod \
> +   SymbolKey.mod \
> +   SymbolTable.mod \
> +   bnflex.mod \
> +
> +# Implementation modules created by the parser generator pge from .bnf files.
> +
> +GM2-AUTO-MODS = \
> +   P2Build.mod \
> +   P3Build.mod \
> +   PHBuild.mod \
> +   PCBuild.mod \
> +   P1Build.mod \
> +   P0SyntaxCheck.mod \
> +
> +# LIBIBERTY interface definition modules
> +
> +GM2-LIBIBERTY-DEFS = \
> +   choosetemp.def \
> +   pexecute.def
> +
> +BUILD-LIBS-BOOT-H = $(GM2-LIBS-BOOT-DEFS:%.def=m2/gm2-libs-boot/$(SRC_PREFIX)%.h)
> +
> +BUILD-LIBS-BOOT = $(BUILD-LIBS-BOOT-H) \
> +                  $(GM2-LIBS-BOOT-MODS:%.mod=m2/gm2-libs-boot/%.o) \
> +                  $(GM2-LIBS-BOOT-CC:%.cc=m2/gm2-libs-boot/%.o) \
> +                  $(GM2-LIBS-BOOT-C:%.c=m2/gm2-libs-boot/%.o)
> +
> +BUILD-COMPILER-BOOT-H = $(GM2-COMP-BOOT-DEFS:%.def=m2/gm2-compiler-boot/$(SRC_PREFIX)%.h) \
> +                        $(GM2-LIBIBERTY-DEFS:%.def=m2/gm2-libiberty/$(SRC_PREFIX)%.h) \
> +                        $(GM2-GCC-DEFS:%.def=m2/gm2-gcc/$(SRC_PREFIX)%.h)
> +
> +BUILD-COMPILER-BOOT = $(BUILD-COMPILER-BOOT-H) \
> +                      $(GM2-COMP-BOOT-DEFS:%.def=m2/gm2-compiler-boot/$(SRC_PREFIX)%.h) \
> +                      $(GM2-AUTO-MODS:%.mod=m2/gm2-compiler-boot/%.o) \
> +                      $(GM2-COMP-BOOT-MODS:%.mod=m2/gm2-compiler-boot/%.o) \
> +                      m2/gm2-compiler-boot/m2flex.o
> +
> +BUILD-BOOT-H = m2/boot-bin/mc$(exeext) \
> +               $(BUILD-LIBS-BOOT-H) $(BUILD-COMPILER-BOOT-H) $(TARGET_H) $(PLUGIN_HEADERS)
> +
> +# Core library definition modules used by the modula-2 to C++ translator.
> +
> +MC-LIB-DEFS = \
> +   ASCII.def \
> +   Args.def \
> +   Assertion.def \
> +   Break.def  \
> +   COROUTINES.def \
> +   CmdArgs.def \
> +   Debug.def \
> +   DynamicStrings.def \
> +   Environment.def \
> +   FIO.def \
> +   FormatStrings.def \
> +   FpuIO.def \
> +   IO.def \
> +   M2Dependent.def \
> +   M2EXCEPTION.def \
> +   M2LINK.def \
> +   M2RTS.def \
> +   MemUtils.def \
> +   NumberIO.def \
> +   PushBackInput.def \
> +   RTExceptions.def \
> +   RTco.def \
> +   RTint.def \
> +   SArgs.def \
> +   SFIO.def \
> +   SYSTEM.def \
> +   Selective.def \
> +   StdIO.def \
> +   Storage.def \
> +   StrCase.def \
> +   StrIO.def \
> +   StrLib.def \
> +   StringConvert.def \
> +   SysExceptions.def \
> +   SysStorage.def \
> +   TimeString.def \
> +   UnixArgs.def \
> +   dtoa.def \
> +   errno.def \
> +   ldtoa.def \
> +   libc.def \
> +   libm.def \
> +   termios.def \
> +   wrapc.def \
> +
> +# Core library implementation modules used by the modula-2 to C++ translator.
> +
> +MC-LIB-MODS = \
> +   ASCII.mod \
> +   Args.mod \
> +   Assertion.mod \
> +   Break.mod  \
> +   CmdArgs.mod \
> +   Debug.mod \
> +   DynamicStrings.mod \
> +   Environment.mod \
> +   FIO.mod \
> +   FormatStrings.mod \
> +   FpuIO.mod \
> +   IO.mod \
> +   M2Dependent.mod \
> +   M2EXCEPTION.mod \
> +   M2RTS.mod \
> +   MemUtils.mod \
> +   NumberIO.mod \
> +   PushBackInput.mod \
> +   RTExceptions.mod \
> +   RTint.mod \
> +   SArgs.mod \
> +   SFIO.mod \
> +   StdIO.mod \
> +   Storage.mod \
> +   StrCase.mod \
> +   StrIO.mod \
> +   StrLib.mod \
> +   StringConvert.mod \
> +   SysStorage.mod \
> +   TimeString.mod \
> +
> +MC-LIB-BOOT-C = $(MC-LIB-MODS:%.mod=%.c)
> +
> +# Definition modules for the modula-2 to C++ translator found in mc.
> +
> +MC-DEFS = \
> +   Indexing.def \
> +   alists.def \
> +   decl.def \
> +   keyc.def \
> +   lists.def \
> +   mcComment.def \
> +   mcComp.def \
> +   mcDebug.def \
> +   mcError.def \
> +   mcFileName.def \
> +   mcLexBuf.def \
> +   mcMetaError.def \
> +   mcOptions.def \
> +   mcPreprocess.def \
> +   mcPretty.def \
> +   mcPrintf.def \
> +   mcQuiet.def \
> +   mcReserved.def \
> +   mcSearch.def \
> +   mcStack.def \
> +   mcStream.def \
> +   mcflex.def \
> +   mcp1.def \
> +   mcp2.def \
> +   mcp3.def \
> +   mcp4.def \
> +   mcp5.def  \
> +   nameKey.def \
> +   symbolKey.def \
> +   varargs.def \
> +   wlists.def \
> +
> +# Implementation modules for the modula-2 to C++ translator found in mc.
> +
> +MC-MODS = \
> +   Indexing.mod \
> +   alists.mod \
> +   decl.mod \
> +   keyc.mod \
> +   lists.mod \
> +   mcComment.mod \
> +   mcComp.mod \
> +   mcDebug.mod \
> +   mcError.mod \
> +   mcFileName.mod \
> +   mcLexBuf.mod \
> +   mcMetaError.mod \
> +   mcOptions.mod \
> +   mcPreprocess.mod \
> +   mcPretty.mod \
> +   mcPrintf.mod \
> +   mcQuiet.mod \
> +   mcReserved.mod \
> +   mcSearch.mod \
> +   mcStack.mod \
> +   mcStream.mod \
> +   nameKey.mod \
> +   symbolKey.mod \
> +   top.mod \
> +   varargs.mod \
> +   wlists.mod \
> +
> +# Parser files generated by pge from .bnf files.
> +
> +MC-AUTO-MODS = \
> +   mcp1.mod \
> +   mcp2.mod \
> +   mcp3.mod \
> +   mcp4.mod \
> +   mcp5.mod
> +
> +MC-BOOT-C = $(MC-MODS:%.mod=%.c) $(MC-AUTO-MODS:%.mod=%.c)
> +
> +# C interface files for mc.
> +
> +MC-INTERFACE-C = \
> +   M2LINK.c \
> +   SYSTEM.c \
> +   Selective.c \
> +   SysExceptions.c \
> +   abort.c \
> +   errno.c \
> +   libc.c \
> +   mcrts.c \
> +   termios.c \
> +   wrapc.c \
> +
> +# C++ interface files for mc.
> +
> +MC-INTERFACE-CC = \
> +   UnixArgs.cc \
> +   dtoa.cc \
> +   ldtoa.cc \
> +
> +BUILD-MC-BOOT-H =  $(MC-LIB-DEFS:%.def=m2/mc-boot-gen/$(SRC_PREFIX)%.h) \
> +                   $(MC-DEFS:%.def=m2/mc-boot-gen/$(SRC_PREFIX)%.h)
> +
> +BUILD-MC-BOOT-C =  $(MC-LIB-MODS:%.mod=m2/mc-boot-gen/$(SRC_PREFIX)%.c) \
> +                   $(MC-MODS:%.mod=m2/mc-boot-gen/$(SRC_PREFIX)%.c)
> +
> +BUILD-MC-BOOT-AUTO-C = $(MC-AUTO-MODS:%.mod=m2/mc-boot-gen/$(SRC_PREFIX)%.c)
> +
> +BUILD-MC-BOOT-O =  $(MC-LIB-BOOT-C:%.c=m2/mc-boot/$(SRC_PREFIX)%.o) \
> +                   $(MC-BOOT-C:%.c=m2/mc-boot/$(SRC_PREFIX)%.o)
> +
> +BUILD-MC-INTERFACE-O = $(MC-INTERFACE-C:%.c=m2/mc-boot-ch/$(SRC_PREFIX)%.o) \
> +                       $(MC-INTERFACE-CC:%.cc=m2/mc-boot-ch/$(SRC_PREFIX)%.o)
> +
> +GM2GCC = -I$(srcdir)/m2 -Im2 -I$(srcdir)/m2/gm2-gcc -Im2/gm2-gcc
> +
> +MCINCLUDES= -I$(srcdir)/m2/mc-boot-ch
> +LOCAL_INCLUDES = -I. -I$(srcdir)/../include -I$(srcdir)
> +
> +GCC_COLOR=m2/gm2-gcc/m2color.o diagnostic-color.o
> +
> +m2/boot-bin/mc$(exeext): $(BUILD-MC-BOOT-O) $(BUILD-MC-INTERFACE-O) \
> +        m2/mc-boot/main.o mcflex.o m2/gm2-libs-boot/RTcodummy.o
> +       +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ $(BUILD-MC-BOOT-O) \
> +         $(BUILD-MC-INTERFACE-O) m2/mc-boot/main.o \
> +         mcflex.o m2/gm2-libs-boot/RTcodummy.o -lm
> +
> +m2/mc-boot/$(SRC_PREFIX)%.o: m2/mc-boot/$(SRC_PREFIX)%.c
> +       $(CXX) -g -c -I. -I$(srcdir)/m2/mc-boot-ch -I$(srcdir)/m2/mc-boot -I$(srcdir)/../include -I$(srcdir) $(INCLUDES) $< -o $@
> +
> +m2/mc-boot-ch/$(SRC_PREFIX)%.o: m2/mc-boot-ch/$(SRC_PREFIX)%.c m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -DHAVE_CONFIG_H -g -c -I. -Im2/gm2-libs -I$(srcdir)/../include -I$(srcdir) $(INCLUDES) -Im2/gm2-libs $< -o $@
> +
> +m2/mc-boot-ch/$(SRC_PREFIX)%.o: m2/mc-boot-ch/$(SRC_PREFIX)%.cc m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -DHAVE_CONFIG_H -g -c -I. -Im2/gm2-libs -I$(srcdir)/../include -I$(srcdir) $(INCLUDES) -Im2/gm2-libs $< -o $@
> +
> +m2/mc-boot/main.o: $(M2LINK) $(srcdir)/m2/init/mcinit
> +       unset CC ; $(M2LINK) -s --langc++ --exit --name m2/mc-boot/main.c $(srcdir)/m2/init/mcinit
> +       $(CXX) -g -c -I. -I$(srcdir)/../include -I$(srcdir) $(INCLUDES) m2/mc-boot/main.c -o $@
> +
> +mcflex.o: mcflex.c
> +       $(CC) -I$(srcdir)/m2/mc -g -c $< -o $@   # remember that mcReserved.h is copied into m2/mc
> +
> +mcflex.c: $(srcdir)/m2/mc/mc.flex
> +       flex -t $< > $@
> +
> +m2/gm2-libs-boot/%.o: $(srcdir)/m2/gm2-libs-boot/%.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) -o=m2/gm2-libs-boot/$*.c $(srcdir)/m2/gm2-libs-boot/$*.mod
> +       $(COMPILER) -c $(CPP_GM2) $(CFLAGS) $(MCINCLUDES) m2/gm2-libs-boot/$*.c -o $@
> +
> +m2/gm2-libs-boot/%.o: $(srcdir)/m2/gm2-libs/%.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) -o=m2/gm2-libs-boot/$*.c $(srcdir)/m2/gm2-libs/$*.mod
> +       $(COMPILER) -c $(CPP_GM2) $(CFLAGS) -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(MCINCLUDES) $(INCLUDES) m2/gm2-libs-boot/$*.c -o $@
> +
> +m2/gm2-libs-boot/$(SRC_PREFIX)%.h: $(srcdir)/m2/gm2-libs/%.def $(MCDEPS)
> +       $(MC) -o=$@ $(srcdir)/m2/gm2-libs/$*.def
> +
> +m2/gm2-libs-boot/RTcodummy.o: $(srcdir)/m2/gm2-libs-ch/RTcodummy.c m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c -DIN_GCC $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/RTintdummy.o: $(srcdir)/m2/gm2-libs-ch/RTintdummy.c m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c -DIN_GCC $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/wrapc.o: $(srcdir)/m2/gm2-libs-ch/wrapc.c m2/gm2-libs-boot/$(SRC_PREFIX)wrapc.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c -DHAVE_CONFIG_H $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot -Im2/gm2-libs $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/M2LINK.o: $(srcdir)/m2/gm2-libs-ch/M2LINK.c m2/gm2-libs-boot/$(SRC_PREFIX)M2LINK.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c -DHAVE_CONFIG_H $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot -Im2/gm2-libs $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/UnixArgs.o: $(srcdir)/m2/gm2-libs-ch/UnixArgs.cc m2/gm2-libs-boot/$(SRC_PREFIX)UnixArgs.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c -DIN_GCC $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/choosetemp.o: m2/gm2-libs-ch/choosetemp.c m2/gm2-libiberty/Gchoosetemp.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot -Im2/gm2-libiberty -I$(srcdir)/m2/gm2-libiberty/ $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/errno.o: $(srcdir)/m2/gm2-libs-ch/errno.c m2/gm2-libs-boot/$(SRC_PREFIX)errno.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/dtoa.o: $(srcdir)/m2/gm2-libs-ch/dtoa.cc m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/ldtoa.o: $(srcdir)/m2/gm2-libs-ch/ldtoa.cc m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/termios.o: $(srcdir)/m2/gm2-libs-ch/termios.c $(BUILD-LIBS-BOOT-H) m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/SysExceptions.o: $(srcdir)/m2/gm2-libs-ch/SysExceptions.c \
> +                                  m2/gm2-libs-boot/$(SRC_PREFIX)SysExceptions.h m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-boot/SysStorage.o: $(srcdir)/m2/gm2-libs/SysStorage.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) -o=m2/gm2-libs-boot/SysStorage.c $(srcdir)/m2/gm2-libs/SysStorage.mod
> +       $(COMPILER) -DIN_GCC -c -fpermissive $(CFLAGS) \
> +          -I$(srcdir)/m2 -Im2 -I. -Im2/gm2-libs-boot $(MCINCLUDES) $(INCLUDES) \
> +          m2/gm2-libs-boot/SysStorage.c -o m2/gm2-libs-boot/SysStorage.o
> +
> +m2/gm2-compiler-boot/M2GCCDeclare.o: $(srcdir)/m2/gm2-compiler/M2GCCDeclare.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) --extended-opaque -o=m2/gm2-compiler-boot/M2GCCDeclare.c $<
> +       $(COMPILER) -c -fpermissive $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(GM2GCC) \
> +            -I. -I$(srcdir)/../include -I$(srcdir) \
> +            -I. -Im2/gm2-libs-boot -Im2/gm2-compiler-boot \
> +            -I$(srcdir)/m2/gm2-libiberty $(MCINCLUDES) $(INCLUDES) m2/gm2-compiler-boot/M2GCCDeclare.c -o $@
> +
> +m2/gm2-compiler-boot/M2Error.o: $(srcdir)/m2/gm2-compiler/M2Error.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) --extended-opaque -o=m2/gm2-compiler-boot/M2Error.c $<
> +       $(COMPILER) -c -fpermissive $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(GM2GCC) \
> +            -I. -I$(srcdir)/../include -I$(srcdir) \
> +            -I. -Im2/gm2-libs-boot -Im2/gm2-compiler-boot \
> +            -I$(srcdir)/m2/gm2-libiberty $(MCINCLUDES) $(INCLUDES) m2/gm2-compiler-boot/M2Error.c -o $@
> +
> +m2/gm2-compiler-boot/%.o: $(srcdir)/m2/gm2-compiler/%.mod $(BUILD-BOOT-H) $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) -o=m2/gm2-compiler-boot/$*.c $(srcdir)/m2/gm2-compiler/$*.mod
> +       $(COMPILER) -c -fpermissive $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(GM2GCC) \
> +            -I. -I$(srcdir)/../include -I$(srcdir) \
> +            -I. -Im2/gm2-libs-boot -Im2/gm2-compiler-boot -Im2/gm2-libiberty \
> +            -I$(srcdir)/m2/gm2-libiberty $(MCINCLUDES) $(INCLUDES) m2/gm2-compiler-boot/$*.c -o $@
> +
> +m2/gm2-compiler-boot/%.o: m2/gm2-compiler-boot/%.mod $(MCDEPS) $(BUILD-BOOT-H)
> +       $(MC) -o=m2/gm2-compiler-boot/$*.c m2/gm2-compiler-boot/$*.mod
> +       $(COMPILER) -c -fpermissive $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(GM2GCC) \
> +            -I. -I$(srcdir)/../include -I$(srcdir) \
> +            -I. -Im2/gm2-libs-boot -Im2/gm2-compiler-boot \
> +            -I$(srcdir)/m2/gm2-libiberty $(MCINCLUDES) $(INCLUDES) m2/gm2-compiler-boot/$*.c -o $@
> +
> +m2/gm2-compiler-boot/$(SRC_PREFIX)%.h: $(srcdir)/m2/gm2-compiler/%.def $(MCDEPS)
> +       $(MC) -o=$@ $(srcdir)/m2/gm2-compiler/$*.def
> +
> +m2/gm2-compiler-boot/m2flex.o: m2/gm2-compiler/m2flex.c $(BUILD-BOOT-H) $(TIMEVAR_H) \
> +        $(BUILD-LIBS-BOOT-H)  m2/gm2-compiler-boot/$(SRC_PREFIX)NameKey.h \
> +        $(CONFIG_H) m2/gm2config.h $(TARGET_H) $(PLUGIN_HEADERS)
> +       $(COMPILER) -c -g $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
> +          $(GM2GCC) $(INCLUDES) -I$(srcdir)/m2 \
> +          -Im2 -Im2/gm2-compiler-boot -Im2/gm2-libs-boot $< -o $@
> +
> +m2/gm2-compiler/m2flex.c: $(srcdir)/m2/m2.flex $(TIMEVAR_H) insn-attr-common.h
> +       flex -t $< | sed -e 's/ malloc/ xmalloc/' | sed -e 's/ realloc/ xrealloc/' > $@
> +
> +m2/gm2-libiberty/$(SRC_PREFIX)%.h: $(srcdir)/m2/gm2-libiberty/%.def $(MCDEPS)
> +       $(MC) -o=$@ $(srcdir)/m2/gm2-libiberty/$*.def
> +
> +# The rules to build objects in gm2-compiler and gm2-libs directories.
> +
> +m2/gm2-compiler/%.o: $(srcdir)/m2/gm2-compiler/%.mod
> +       $(GM2_1) $(GM2_FLAGS) -c -I$(srcdir)/m2/gm2-compiler -I$(srcdir)/m2/gm2-libs -I$(srcdir)/m2/gm2-gcc -I$(srcdir)/m2/gm2-libiberty $< -o $@
> +
> +m2/gm2-compiler/m2flex.o: m2/gm2-compiler/m2flex.c m2/gm2-libs/gm2-libs-host.h $(TIMEVAR_H)
> +       $(COMPILER) -c -g $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
> +          $(GM2GCC) -Im2/gm2-compiler-boot -Im2/gm2-libs-boot $< -o $@
> +
> +m2/gm2-compiler/%.o: m2/gm2-compiler/%.mod
> +       $(GM2_1) $(GM2_FLAGS) -c -I$(srcdir)/m2/gm2-compiler -I$(srcdir)/m2/gm2-libs -I$(srcdir)/m2/gm2-gcc -I$(srcdir)/m2/gm2-libiberty $< -o $@
> +
> +m2/gm2-libs-iso/%.o: $(srcdir)/m2/gm2-libs-iso/%.c m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) -DBUILD_GM2_LIBS_TARGET -DBUILD_GM2_LIBS -c $(CFLAGS) -Im2/gm2-libs -I$(srcdir)/m2 -Im2/gm2-libs-boot $(INCLUDES) $< -o $@
> +
> +m2/gm2-libs-iso/%.o: $(srcdir)/m2/gm2-libs-iso/%.mod
> +       $(GM2_1) $(GM2_ISO_FLAGS) -c -B./ -Im2/gm2-libs-iso:$(srcdir)/m2/gm2-libs-iso -I$(srcdir)/m2/gm2-libs $< -o $@
> +
> +
> +# We build the cc1gm2$(exeext) from the boot stage and then proceed to build it
> +# again using itself.
> +
> +m2/gm2-libs/gm2-libs-host.h:
> +       echo "Configuring to build libraries using native compiler" ; \
> +        NEW_SRCDIR=`${srcdir}/m2/tools-src/calcpath ../../ ${srcdir} m2/gm2-libs` ; \
> +        export NEW_SRCDIR ; \
> +        cd m2/gm2-libs ; \
> +        $(SHELL) -c '$${NEW_SRCDIR}/config-host \
> +               --srcdir=$${NEW_SRCDIR} \
> +               --target=$(target) \
> +               --program-suffix=$(exeext)'
> +
> +# Autoconf inserts -DCROSS_DIRECTORY_STRUCTURE if we are building a
> +# cross compiler and the ../Makefile.in above appends this to INTERNAL_CFLAGS.
> +
> +m2/gm2config.h:
> +       NEW_SRCDIR=`${srcdir}/m2/tools-src/calcpath ../ ${srcdir} m2` ; \
> +        export NEW_SRCDIR ; \
> +       cd m2 ; \
> +       if echo $(INTERNAL_CFLAGS) | grep \\-DCROSS_DIRECTORY_STRUCTURE; then \
> +            AR=$(echo $(AR_FOR_TARGET) | sed -e "s/^ //") ; \
> +            export AR ; \
> +            RANLIB=$(echo $(RANLIB_FOR_TARGET) | sed -e "s/^ //") ; \
> +            export RANLIB ; \
> +            $(SHELL) -c '$${NEW_SRCDIR}/configure --srcdir=$${NEW_SRCDIR} \
> +                --target=$(target) --program-suffix=$(exeext) \
> +                --includedir=$(SYSTEM_HEADER_DIR) --libdir=$(libdir) \
> +                --libexecdir=$(libexecdir)' ; \
> +        else \
> +            $(SHELL) -c '$${NEW_SRCDIR}/configure --srcdir=$(NEW_SRCDIR) \
> +                --target=$(target) --program-suffix=$(exeext)' ; \
> +        fi
> +
> +$(objdir)/m2/gm2-libs-min/SYSTEM.def: $(GM2_PROG_DEP)
> +       $(SHELL) $(srcdir)/m2/tools-src/makeSystem -fpim \
> +             $(srcdir)/m2/gm2-libs-min/SYSTEM.def \
> +             $(srcdir)/m2/gm2-libs-min/SYSTEM.mod \
> +             -I$(srcdir)/m2/gm2-libs-min:$(srcdir)/m2/gm2-libs \
> +             "$(GM2_FOR_TARGET)" $@
> +
> +$(objdir)/m2/gm2-libs/SYSTEM.def: $(GM2_PROG_DEP)
> +       echo "GM2_FOR_TARGET $(GM2_FOR_TARGET)"
> +       echo "GCC_FOR_TARGET $(GCC_FOR_TARGET)"
> +       $(SHELL) $(srcdir)/m2/tools-src/makeSystem -fpim \
> +             $(srcdir)/m2/gm2-libs/SYSTEM.def \
> +             $(srcdir)/m2/gm2-libs/SYSTEM.mod \
> +             -I$(srcdir)/m2/gm2-libs \
> +             "$(GM2_FOR_TARGET)" $@
> +
> +$(objdir)/m2/gm2-libs-iso/SYSTEM.def: $(GM2_PROG_DEP)
> +       $(SHELL) $(srcdir)/m2/tools-src/makeSystem -fiso \
> +             $(srcdir)/m2/gm2-libs-iso/SYSTEM.def \
> +             $(srcdir)/m2/gm2-libs-iso/SYSTEM.mod \
> +             -I$(srcdir)/m2/gm2-libs-iso:$(srcdir)/m2/gm2-libs \
> +             "$(GM2_FOR_TARGET)" $@
> +
> +$(objdir)/m2/gm2-libs-coroutines/SYSTEM.def: $(GM2_PROG_DEP)
> +       $(SHELL) $(srcdir)/m2/tools-src/makeSystem -fpim \
> +             $(srcdir)/m2/gm2-libs-coroutines/SYSTEM.def \
> +             $(srcdir)/m2/gm2-libs-coroutines/SYSTEM.mod \
> +             -I$(srcdir)/m2/gm2-libs-coroutines:$(srcdir)/m2/gm2-libs-iso:$(srcdir)/m2/gm2-libs \
> +             "$(GM2_FOR_TARGET)" $@
> +
> +build-compiler: $(GM2-COMP-MODS:%.mod=m2/gm2-compiler/%.o) \
> +                $(GM2-AUTO-MODS:%.mod=m2/gm2-compiler/%.o) \
> +                m2/gm2-compiler/m2flex.o
> +
> +m2/gm2-compiler/gm2.a: build-compiler gm2$(exeext)
> +       $(AR_FOR_TARGET) cr $@ $(GM2-COMP-MODS:%.mod=m2/gm2-compiler/%.o) \
> +                    $(GM2-AUTO-MODS:%.mod=m2/gm2-compiler/%.o)
> +       $(RANLIB) $@
> +
> +m2/gm2-libs-boot/libgm2.a: m2/boot-bin/mc$(exeext) $(BUILD-LIBS-BOOT)
> +       $(AR) cr $@ $(GM2-LIBS-BOOT-MODS:%.mod=m2/gm2-libs-boot/%.o) \
> +                    $(GM2-LIBS-BOOT-CC:%.cc=m2/gm2-libs-boot/%.o) \
> +                    $(GM2-LIBS-BOOT-C:%.c=m2/gm2-libs-boot/%.o)
> +       $(RANLIB) $@
> +
> +m2/gm2-compiler-boot/gm2.a: m2/boot-bin/mc$(exeext) m2/boot-bin/mklink$(exeext) \
> +                         $(BUILD-LIBS-BOOT) $(BUILD-COMPILER-BOOT)
> +       $(AR) cr $@ $(GM2-COMP-BOOT-MODS:%.mod=m2/gm2-compiler-boot/%.o) \
> +                    $(GM2-AUTO-MODS:%.mod=m2/gm2-compiler-boot/%.o)
> +       $(RANLIB) $@
> +
> +m2/gm2-compiler-boot/gm2.a: m2/boot-bin/mc$(exeext)
> +
> +m2/boot-bin/mklink$(exeext): $(srcdir)/m2/tools-src/mklink.c
> +       $(CXX) $(CFLAGS) -I$(srcdir)/m2 -Im2/gm2-libs-boot -Im2/gm2-compiler-boot -I$(srcdir)/m2/mc-boot-ch $(INCLUDES) $< -o $@
> +
> +m2/gm2-compiler-boot/$(SRC_PREFIX)%.h: $(srcdir)/m2/gm2-compiler-boot/%.def $(MCDEPS)
> +       $(MC) --quiet -o=$@ $(srcdir)/m2/gm2-compiler-boot/$*.def
> +
> +m2/gm2-compiler/%.mod: $(srcdir)/m2/gm2-compiler/%.bnf $(PGE)
> +       $(PGE) -k -l $< -o $@
> +
> +m2/gm2-compiler-boot/%.mod: $(srcdir)/m2/gm2-compiler/%.bnf $(PGE)
> +       $(PGE) -k -l $< -o $@
> +
> +check-m2: check-gm2
> +check_m2: check-gm2
> +check_gm2: check-gm2
> +check-modula2: check-gm2
> +check_modula2: check-gm2
> +check-modula-2: check-gm2
> +check_modula-2: check-gm2
> +check_modula_2: check-gm2
> +
> +lang_checks += check-gm2
> +lang_checks_parallelized += check-gm2
> +# For description see the check_$lang_parallelize comment in gcc/Makefile.in.
> +check_gm2_parallelize = 10000
> +
> +check-gm2-local: $(GM2TESTSUITEDIR)/site.exp
> +       -(rootme=`${PWD_COMMAND}`; export rootme; \
> +       srcdir=`cd ${srcdir}; ${PWD_COMMAND}` ; export srcdir ; \
> +       cd $(TESTSUITEDIR); \
> +       EXPECT=${EXPECT} ; export EXPECT ; \
> +       if [ -f $${rootme}/../expect/expect ] ; then  \
> +          TCL_LIBRARY=`cd .. ; cd ${srcdir}/../tcl/library ; ${PWD_COMMAND}` ; \
> +           export TCL_LIBRARY ; fi ; \
> +       $(RUNTEST) --tool gm2 --directory testsuite/m2/pim/pass)
> +
> +BUILD-PGE-O = \
> +   m2/pge-boot/GArgs.o \
> +   m2/pge-boot/GASCII.o \
> +   m2/pge-boot/GAssertion.o \
> +   m2/pge-boot/Gbnflex.o \
> +   m2/pge-boot/GDebug.o \
> +   m2/pge-boot/GDynamicStrings.o \
> +   m2/pge-boot/GFIO.o \
> +   m2/pge-boot/GIndexing.o \
> +   m2/pge-boot/GIO.o \
> +   m2/pge-boot/GLists.o \
> +   m2/pge-boot/GM2Dependent.o \
> +   m2/pge-boot/GM2EXCEPTION.o \
> +   m2/pge-boot/GM2RTS.o \
> +   m2/pge-boot/GNameKey.o \
> +   m2/pge-boot/GNumberIO.o \
> +   m2/pge-boot/GOutput.o \
> +   m2/pge-boot/Gpge.o \
> +   m2/pge-boot/GPushBackInput.o \
> +   m2/pge-boot/GRTExceptions.o \
> +   m2/pge-boot/GSFIO.o \
> +   m2/pge-boot/GStdIO.o \
> +   m2/pge-boot/GStorage.o \
> +   m2/pge-boot/GStrCase.o \
> +   m2/pge-boot/GStrIO.o \
> +   m2/pge-boot/GStrLib.o \
> +   m2/pge-boot/GSymbolKey.o \
> +   m2/pge-boot/GSysStorage.o \
> +   m2/pge-boot/Glibc.o \
> +   m2/pge-boot/Gerrno.o \
> +   m2/pge-boot/GUnixArgs.o \
> +   m2/pge-boot/GM2LINK.o \
> +   m2/pge-boot/Gtermios.o \
> +   m2/pge-boot/GSysExceptions.o \
> +   m2/pge-boot/Gabort.o \
> +   m2/pge-boot/Gmcrts.o \
> +   m2/pge-boot/main.o
> +
> +ifeq ($(M2_MAINTAINER),yes)
> +include m2/Make-maintainer
> +else
> +m2/pge-boot/%.o: m2/pge-boot/%.c m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) $(INCLUDES) -I$(srcdir)/m2/pge-boot -Im2/gm2-libs -g -c $< -o $@
> +
> +m2/pge-boot/%.o: m2/pge-boot/%.cc m2/gm2-libs/gm2-libs-host.h
> +       $(CXX) $(INCLUDES) -I$(srcdir)/m2/pge-boot -Im2/gm2-libs -g -c $< -o $@
> +
> +$(PGE): $(BUILD-PGE-O)
> +       +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ $(BUILD-PGE-O) -lm
> +
> +endif
  

Richard Biener <richard.guenther@gmail.com> writes:

>> +M2_MAINTAINER = no
>> +
>> +CPP_GM2=-fpermissive -DIN_GCC -g
>
> Do we really need -fpermissive here?

no not needed (and now removed) - thanks for spotting it.

>> +GM2_1 = ./gm2 -B./stage1/m2 -g -fm2-g
>> +
>> +GM2_FOR_TARGET = $(STAGE_CC_WRAPPER) ./gm2 -B./ -B$(build_tooldir)/bin/ -L$(objdir)/../ld $(TFLAGS)
>> +
>> +TEXISRC = $(objdir)/m2/images/gnu.eps \
>> +          $(srcdir)/doc/gm2.texi \
>> +          m2/gm2-libs.texi \
>> +          m2/gm2-ebnf.texi \
>> +          m2/SYSTEM-pim.texi \
>> +          m2/SYSTEM-iso.texi \
>> +          m2/Builtins.texi
>> +
>
> That will need Sphinx treatment

true

>> +# Define the names for selecting modula-2 in LANGUAGES.

snip

>> +m2.info: doc/m2.info
>> +
>> +m2.man: doc/m2.1
>> +
>> +m2.install-man: $(DESTDIR)$(man1dir)/$(GM2_INSTALL_NAME)$(man1ext)
>> +
>> +$(DESTDIR)$(man1dir)/$(GM2_INSTALL_NAME)$(man1ext): doc/m2.1 installdirs
>> +       -rm -f $@
>> +       -$(INSTALL_DATA) $< $@
>> +       -chmod a-x $@
>> +
>> +m2.dvi: $(TEXISRC)
>> +       $(TEXI2DVI) -I $(objdir)/m2 -I $(srcdir)/doc/include $(srcdir)/doc/gm2.texi -o $@
>> +
>> +m2.ps: m2.dvi
>> +       dvips -o $@ $<
>> +
>> +m2.pdf: m2.ps
>> +       gs -q -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=$@ $<
>> +
>> +.INTERMEDIATE: gm2.pod
>> +
>> +m2.pod: doc/gm2.texi $(TEXISRC)
>> +       -$(TEXI2POD) -I $(objdir)/m2 -D m2 < $< > $@
>
> Likewise for the doc parts above and below

yes, sure I'll convert them

>> +doc/m2.info: $(TEXISRC)
>> +       if test "x$(BUILD_INFO)" = xinfo; then \
>> +         rm -f doc/m2.info*; \
>> +          $(MAKEINFO) --no-headers -I$(objdir)/m2 -I$(srcdir)/doc/include \
>> +                      -o $@ $(srcdir)/doc/gm2.texi ; \
>> +       else true; fi
>> +
>> +$(objdir)/m2/images/gnu.eps: $(srcdir)/m2/images/gnupng
>> +       test -d m2/images || mkdir -p m2/images
>> +       if [ -f $(srcdir)/m2/images/gnu.eps ] ; then \
>> +           cp $(srcdir)/m2/images/gnu.eps $@ ; \
>> +        else \
>> +           pngtopnm $< | pnmtops -noturn > $@ ; \
>> +        fi
>> +
>> +m2/gm2-libs.texi: gm2-libs.texi-check; @true
>> +
>> +gm2-libs.texi-check:  m2/SYSTEM-pim.texi m2/SYSTEM-iso.texi m2/Builtins.texi \
>> +                      $(objdir)/m2/gm2-libs-coroutines/SYSTEM.def m2/gm2-ebnf.texi
>> +       python3 $(srcdir)/m2/tools-src/def2texi.py -uLibraries -s$(srcdir)/m2 -b$(objdir)/m2 > $(objdir)/m2/gm2-libs.texi
>> +       $(STAMP) gm2-libs.texi-check
>> +
>> +m2/gm2-ebnf.texi: gm2-ebnf.texi-check; @true
>> +
>> +gm2-ebnf.texi-check: $(PGE) $(srcdir)/m2/gm2-compiler/P0SyntaxCheck.bnf
>> +       $(PGE) -c -p -t -f $(srcdir)/m2/gm2-compiler/P0SyntaxCheck.bnf > m2/gm2-ebnf.texi
>> +       $(STAMP) gm2-ebnf.texi-check
>> +
>> +m2/SYSTEM-pim.texi: SYSTEM-pim-texi-check; @true
>> +
>> +SYSTEM-pim-texi-check: $(objdir)/m2/gm2-libs/SYSTEM.def
>> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b$(objdir)/m2 -f$(objdir)/m2/gm2-libs/SYSTEM.def > $(objdir)/m2/SYSTEM-pim.texi
>> +       $(STAMP) SYSTEM-pim-texi-check
>> +
>> +m2/SYSTEM-iso.texi:  SYSTEM-iso.texi-check; @true
>> +
>> +SYSTEM-iso.texi-check:  $(objdir)/m2/gm2-libs-iso/SYSTEM.def
>> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b$(objdir)/m2 -f$(objdir)/m2/gm2-libs-iso/SYSTEM.def > $(objdir)/m2/SYSTEM-iso.texi
>> +       $(STAMP) SYSTEM-iso.texi-check
>> +
>> +m2/Builtins.texi:  Builtins.texi-check; @true
>> +
>> +Builtins.texi-check:  m2/gm2-libs/Builtins.def
>> +       python3 $(srcdir)/m2/tools-src/def2texi.py -b./ -f$(srcdir)/m2/gm2-libs/Builtins.def > $(objdir)/m2/Builtins.texi
>> +       $(STAMP) Builtins.texi-check

snip

>> +gm2.paranoid: stage3/m2/cc1gm2$(exeext) gm2.verifyparanoid
>> +
>> +cc1gm2$(exeext): stage1/m2/cc1gm2$(exeext) $(m2.prev)
>> +       cp -p $< $@
>> +
>> +stage3/m2/cc1gm2$(exeext): stage2/m2/cc1gm2$(exeext) m2/gm2-compiler-paranoid/m2flex.o \
>> +                            $(P) $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) $(GM2_LIBS_PARANOID) \
>> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
>> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler-paranoid/m2flex.o \
>> +                            attribs.o \
>> +                              $(GM2_LIBS_PARANOID) \
>> +                              $(BACKEND) $(LIBS) m2/gm2-gcc/rtegraph.o \
>> +                              $(BACKENDLIBS) $(LIBSTDCXX) -lm
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)
>> +
>> +stage2/m2/cc1gm2$(exeext): stage1/m2/cc1gm2$(exeext) m2/gm2-compiler/m2flex.o $(P) \
>> +                            $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) $(GM2_LIBS) \
>> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
>> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler/m2flex.o \
>> +                            attribs.o \
>> +                              $(GM2_LIBS) \
>> +                              $(BACKEND) $(LIBS) m2/gm2-gcc/rtegraph.o \
>> +                              $(BACKENDLIBS) $(LIBSTDCXX) -lm
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)
>> +
>> +stage1/m2/cc1gm2$(exeext): gm2$(exeext) m2/gm2-compiler-boot/m2flex.o \
>> +                            $(P) $(GM2_C_OBJS) $(BACKEND) $(LIBDEPS) \
>> +                            $(GM2_LIBS_BOOT) $(MC_LIBS) \
>> +                            m2/gm2-gcc/rtegraph.o plugin/m2rte$(exeext).so \
>> +                            m2/gm2-libs-boot/M2LINK.o \
>> +                            $(m2.prev)
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),start)
>> +       +$(LLINKER) $(ALL_CFLAGS) $(LDFLAGS) -o $@ $(GM2_C_OBJS) m2/gm2-compiler-boot/m2flex.o \
>> +                            attribs.o \
>> +                             $(GM2_LIBS_BOOT) $(MC_LIBS) \
>> +                             m2/gm2-gcc/rtegraph.o m2/gm2-libs-boot/M2LINK.o \
>> +                             $(BACKEND) $(LIBS) $(BACKENDLIBS)
>> +       @$(call LINK_PROGRESS,$(INDEX.m2),end)
>
> It looks like you are employing your own bootstrapping scheme here?
> In theory one could
> use --enable-stage1-languages=m2 and the stage1 built compiler could
> be used to shorten the above for stage2 and stage3?

ah yes this would work and likely reduce the number of rules.

> Likewise it might be feasible to provide a --with-system-gm2?

sure I will look into this

> Anyway, I can't spot any obvious issues in this file (but it's large).

I think it might also be shortened by changing the bootstrap tool mc to
only use generic rules (and avoid using the --extended-opaque specific rules)

> I think exposing this to a wider audience
> earlier is most important at this point.
>
> Thus OK.

great news thanks!

regards,
Gaius