------- Comment #2 from developer at sandoe-acoustics dot co dot uk 2010-01-02 16:41 ------- (In reply to comment #1) > I was able to do a C-only bootstrap of mainline with all three libraries > in-tree on x86_64-unknown-linux-gnu. I used mpc-0.8, mpfr-2.4.2, gmp-4.3.1 > and ... > 1. Is this a recent regression or has it always failed? since the introduction of mpc - prior to that I had been using in-tree mpc/mpfr with no issues. [however the first version of mpc I've used is 0.8.1]. > 2. What versions of the various libraries did you use? gmp-4-3-1, mpfr-2-4-1 source trees. mpc-0.8.1 source tree > 3. Does it fail with all versions of the libs or just some? I haven't built with mpc prior to 0.8.1 - but these same gmp/mpfr versions *were* OK prior to the introduction of mpc. > 4. The targets listed include darwin9 and i686-linux, do they both fail for > the same reason? yes - configure fail for mpc. > 5. Do you have other versions of gmp/mpfr installed somewhere that conflict > with the bootstrap? no, I don't install any of these libs on darwin. I have installed on i686-linux *since*, but the fault occurred on a fresh ubuntu 9.10 install.
> 6. Is there more info or investigation you can provide? make check (mpc part) also fails when the mpc is built in tree - even when the gm/mpfr libs are supplied using --with-{gmp,mpfr}= ... this perhaps points at an mpc config change between 0.8 and 0.8.1 - since 0.8 works for you. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424