[Buildroot] gcc-error with latest buildroot
Marco Glatz
marco-glatz at web.de
Sat Dec 26 14:20:40 UTC 2009
Am Samstag, 26. Dezember 2009 15:08:53 schrieb Michael S. Zick:
> On Sat December 26 2009, Marco Glatz wrote:
> > hello,
> >
> > i'm trying to make a toolchain using latest buildroot, but when compiling
> > gcc i get this error:
> >
> > checking for correct version of gmp.h... yes
> > checking for correct version of mpfr.h... no
>
> This problem shipped in 2009.11 also -
> Fails even if mpfr is put into the GCC tree -
>
> Looks like it might be tied in with the logic of building Fortran -
> (GCC once only used mpfr on the Fortran builds).
> Haven't had time for further testing myself.
>
> There is what might be a related bug report already posted.
hi,
this helped me out:
http://www.linuxquestions.org/questions/linux-from-scratch-13/i-have-an-error-
building-gcc-requires-gmp-4.1-and-mpfr-2.3.0.-690426/
so i put gmp and mpfr directories in the gcc-folder in the output/toolchain-
directory. then it compiled. later when linking there were a lot of errors not
finding gmp-related functions, so i put again mpfr and gmp in output/build/gcc-
x-x-target directory. but that didn't help, still getting lot of undefined
reference to __gmpz_* functions.
all the pages i found on google said you should configure --with-mpfr=... and
--with-gmp=....., and there are options fpr this in the makefiles, but they do
net get filled.
marco
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