Re: gcc 4.2.3 : make: *** [bootstrap] Error 2

[Ian Lance Taylor <iant@google.com>]

"Dennis Clarke" <dclarke@blastwave.org> writes:

> Both GMP and MPFR are built and pass all tests and the libraries are created
> fine :
>
> gmp-4.2.2
> mpfr-2.3.1
>
> dclarke@vesta:~/build/first_pass/gcc/gcc-4.2.3-build$ ls -lap
> $HOME/local/lib | grep -E "gmp|mpfr"
> -rw-r--r--  1 dclarke csw  592016 Mar  9 17:48 libgmp.a
> -rwxr-xr-x  1 dclarke csw     794 Mar  9 17:48 libgmp.la
> lrwxrwxrwx  1 dclarke csw      15 Mar  9 17:48 libgmp.so -> libgmp.so.3.4.2
> lrwxrwxrwx  1 dclarke csw      15 Mar  9 17:48 libgmp.so.3 -> libgmp.so.3.4.2
> -rwxr-xr-x  1 dclarke csw  317869 Mar  9 17:48 libgmp.so.3.4.2
> -rw-r--r--  1 dclarke csw 1812424 Mar  9 22:06 libmpfr.a
> -rwxr-xr-x  1 dclarke csw     985 Mar  9 22:06 libmpfr.la
> lrwxrwxrwx  1 dclarke csw      16 Mar  9 22:06 libmpfr.so -> libmpfr.so.1.1.1
> lrwxrwxrwx  1 dclarke csw      16 Mar  9 22:06 libmpfr.so.1 -> libmpfr.so.1.1.1
> -rwxr-xr-x  1 dclarke csw  985371 Mar  9 22:06 libmpfr.so.1.1.1


You will do better to use --disable-shared when you configure gmp and
mpfr.  Using the shared libraries means that you need to ensure that
gcc can find them at runtime, and that typically requires setting
LD_LIBRARY_PATH.


> /home/dclarke/local/powerpc-unknown-linux-gnu/sys-include accepts -g... no
> checking whether the GNU Fortran compiler is working... no
> configure: error: GNU Fortran is not working; the most common reason for
> that is that you might have linked it to shared GMP and/or MPFR libraries,
> and not set LD_LIBRARY_PATH accordingly. If you suspect any other reason,
> please report a bug in http://gcc.gnu.org/bugzilla, attaching
> /home/dclarke/build/first_pass/gcc/gcc-4.2.3-build/powerpc-unknown-linux-gnu/libgfortran/config.log

There you go: set LD_LIBRARY_PATH to work around this, but even better
is to use static gmp and mpfr libraries.


> Should I just set LD_LIBRARY_PATH=$HOME/local/lib  ??

That will probably work too.

Ian