Re: [Gm2] Building gm2-4.7.3 on MacOS 10.5.8/PPC

[john o goyo]

On 02/09/2014 21:59, john o goyo wrote:
> On 01/09/2014 05:11, Gaius Mulley wrote:
> > john o goyo<address@hidden> writes:
> >
> > > The release of 2014-08-30 now passed CFLAGS down to the gm2 area and
> > > builds p2c but then fails to build ppg because it found no main().
> > >
> > > Where is the main() associated with ppg?
> >
> > Hi John,
> >
> > inside mod_init.c, it is built by the rule in:
> >
> > gcc-4.7.3+gm2-git-latest/gm2/gcc-versionno/gcc/gm2/Make-lang.in:2267
> >
> > could it be that say mklink also failed to build and is not creating
> > the mod_init.c file correctly (empty file?)
>
> The file mod_init.c is in gcc/gm2 and contains main(). It is also
> compiled and _main is in mod_init.o. Where is ppg actually linked
> so that I may examine the list of objects modules included?

Further to the above, I found the building script in gm2/Make-lang.in:

gm2/ppg$(exeext): gm2/p2c/p2c-src/src/libp2c.a gm2/boot-bin/mklink 
gm2/boot-bin/p2c \
     gm2/gm2-libs-boot/libgm2.a 
$(GM2-PPG-MODS:%.mod=gm2/gm2-compiler-boot/%.o) \
     gm2/gm2-compiler-boot/ppg.o
        $(QUIAT)echo "building gm2/ppg" ; \
        if [ -f gm2/ppg$(exeext) ] ; then \
            echo "hmm already built" ; \
        fi ; \
        cd gm2 ; \
        ../$(M2LINK) -s ../$(srcdir)/gm2/init/ppginit ; \
        $(CC) $(CFLAGS) -c mod_init.c -o mod_init.o ; \
        M2PATH=". gm2-libs-boot gm2-compiler-boot" ; export M2PATH ; \
        ../$(M2LINK) -l --lib p2c/p2c-src/src/libp2c.a --lib 
../../libiberty/safe-ctype.o ../$(srcdir)/gm2/init/ppginit ; \
        $(SHELL) linkcommand ; \
        $(RM) linkcommand ; \
        if [ -x a$(exeext) ] ; then \
            mv a$(exeext) ppg$(exeext) ; \
        elif [ -x a.out ] ; then \
            mv a.out ppg$(exeext) ; \
        else \
            echo "failed to link $@" ; \
            exit 1; \
        fi

Now mod_init.o is there but could you please explain the linking
instructions above?  A grep for linkcommand found nothing that I understood.

john