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Re: Bootstrapping is currently broken


On Mon, Mar 07, 2016 at 03:41:37PM +0100, Dominik Vogt wrote:
> On Mon, Mar 07, 2016 at 03:18:34PM +0100, Richard Biener wrote:
> > On Mon, Mar 7, 2016 at 3:12 PM, Dominik Vogt <vogt@linux.vnet.ibm.com> wrote:
> > > On Mon, Mar 07, 2016 at 03:00:03PM +0100, Richard Biener wrote:
> > >> On Mon, Mar 7, 2016 at 2:12 PM, Dominik Vogt <vogt@linux.vnet.ibm.com> wrote:
> > >> > A recent patch has broken bootstrapping (s390x) in stage3.  The
> > >> > failure creeped into trunk between friday and today:
> > >> >
> > >> > -- snip --
> > >> > g++ -std=gnu++98   -g -O2 -DIN_GCC     -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror   -DHAVE_CONFIG_H -DGENERATOR_FILE -fno-PIE  -no-pie -o build/gencondmd \
> > >> >     build/gencondmd.o .././libiberty/libiberty.a
> > >> > g++: error: unrecognized command line option â-no-pieâ
> > >> > -- snip --
> > >> >
> > >> > (The compiler in PATH is "gcc (GCC) 4.8.5 20150623 (Red Hat
> > >> > 4.8.5-1)").
> > >>
> > >> Bootstrap should use the built compiler from stage2 in stage3, not
> > >> sure how you get the system compiler used there.
> > >
> > > I guess some configure script failed to notice that g++ is not
> > > being built, and a recent change introduced an option that the
> > > installed compiler doesn't have?  Probably configure should throw
> > > an error if bootstrapping is enabled but the c++ language is not
> > > enabled?

Unreproducable at the moment because I cannot remember what steps
are required to trigger it.  Sometimes in the past I managed to
enable bootstrapping and then the c++ compiler was missing, but it
didn't use the system compiler.  I'll keep my eyes open.

Ciao

Dominik ^_^  ^_^

-- 

Dominik Vogt
IBM Germany


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