On 1/17/07, Bernd Pol <[EMAIL PROTECTED]> wrote:
> Dan Nicholson schrieb am 17.01.2007 23:47:
> > On 1/17/07, Bernd Pol <[EMAIL PROTECTED]> wrote:
> >> Hi all,
> >>
> >> while building the tool chain according to SVN-20070109, ch. 5.10,
> >> DejaGNU refused to build its test suite (make check):
> >>
> >> ------------------------------------
> >> make[4]: Entering directory
> >> `/mnt/lfs/sources/dejagnu-1.4.4/testsuite/libdejagnu'
> >> if g++ -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\"
> >> -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"dejagnu\"
> >> -DVERSION=\"1.4.4\" -I. -I. -I../.. -g -g -O2 -MT unit.o -MD -MP -MF
> >> ".deps/unit.Tpo" \
> >> -c -o unit.o `test -f 'unit.cc' || echo './'`unit.cc; \
> >> then mv -f ".deps/unit.Tpo" ".deps/unit.Po"; \
> >> else rm -f ".deps/unit.Tpo"; exit 1; \
> >> fi
> >> g++ -I../.. -g -g -O2 -o unit unit.o
> >> /lib/libc.so.6: undefined reference to [EMAIL PROTECTED]'
> >> collect2: ld returned 1 exit status
> >> make[4]: *** [unit] Error 1
> >> make[4]: Leaving directory
> >> `/mnt/lfs/sources/dejagnu-1.4.4/testsuite/libdejagnu'
> >> ------------------------------------
> >
> > $ /tools/bin/ld --verbose | grep SEARCH_DIR
> >
> > I get
> >
> > SEARCH_DIR("/tools/i686-pc-linux-gnu/lib"); SEARCH_DIR("/tools/lib");
>
> I get exactly the same reading. There is something weird going on.
> I tried rebuilding the toolchain again from scratch, just in case.
> No change.
Wait, now I think I know. See how above it's calling g++? In
gcc-pass1, we only install the C compiler, not the C++ compiler. So,
it's actually using your host's C++ compiler, g++. I'm not sure which
collect2 it's calling (probably your host's, and in turn it's ld), but
it's trying to link to your host's C libraries and this doesn't work
for you. Just to see what's happening, do this
$ g++ -Wl,--verbose 2>&1 | grep SEARCH_DIR
You'll probably see paths outside of /tools.
> Possibly this affects DejaGNU testsuite only? Tomorrow I'll check what
> happens in pass 2 gcc building.
After gcc-pass2 you'll have a /tools/bin/g++, so everything should be
fine. You can definitely skip the dejagnu testsuite. Most people never
run it. In fact, we should probably remove that from the book since it
depends on the host's toolchain, and we don't want that.
I think this has only ever really worked before because most of the
people driving the development are building the book with host
toolchains nearly identical with what's in the book.
What kind of host are you using (distro)?
--
Dan
--
http://linuxfromscratch.org/mailman/listinfo/lfs-dev
FAQ: http://www.linuxfromscratch.org/faq/
Unsubscribe: See the above information page
