Re: Error for unknown spec function 'dumps' when compiling GCC 11.X

[Jonathan Wakely <jwakely.gcc@gmail.com>]

On Mon, 25 Oct 2021 at 22:47, Tammo Tjarks <tammo@tammo-tjarks.de> wrote:
>
> Hello Jonathan,
> thank you very much for your quick answer. Maybe it is related to the fact, that I compile from tarball and do not clone the git repository.

That's the usual way people build a release. The Git repo is most
commonly used for building the tips of development branches.


> I use the commands:
>
> unset LD_LIBRARY_PATH
>
>
> export PATH="/opt/add_swlibs/gcc/10.3.0/rh6_64/bin:${PATH}"
> export LDFLAGS="-L/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only "
>
> /opt/add_swlibs/.compile/gcc/11.2/rh6_64/gcc-11.2.0/configure --prefix=/opt/add_swlibs/gcc/11.2.0/rh6_64 --enable-shared --enable-threads=posix --without-local-prefix --with-pic --enable-targets=all --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu \
>                                                    --with-ld=/opt/add_swlibs/binutils/2.36.1/linux60_64/bin/ld LDFLAGS=-Wl,-rpath,/opt/add_swlibs/gcc/11.2.0/rh6_64/lib64 --disable-multilib --with-as=/opt/add_swlibs/binutils/2.36.1/linux60_64/bin/as \
>                                                    --enable-__cxa_atexit --enable-gnu-indirect-function --enable-checking --enable-gather-detailed-mem-stats \
>                                                    --with-mpc-include=/opt/add_swlibs/versioned_libs/0.5/include --with-mpc-lib=/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only \
>                                                    --with-mpfr-include=/opt/add_swlibs/versioned_libs/0.5/include --with-mpfr-lib=/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only \
>                                                    --with-gmp-include=/opt/add_swlibs/versioned_libs/0.5/include --with-gmp-lib=/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only \
>                                                    --with-isl-include=/opt/add_swlibs/versioned_libs/0.5/include --with-isl-lib=/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only \
>                                                    --with-zstd-include=/opt/add_swlibs/versioned_libs/0.5/include --with-zstd-lib=/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only
>
>   to compile. Used similar command for 10.3 (where I did not use/provide isl and zstd).
> The library directory (/opt/add_swlibs/versioned_libs/0.5/linux60_64/lib64_static_only is a directory where I linked only the static libraries to link the gcc itself without dynamic dependencies. I compile for RH6, but have seen the same problem for RH7/8. For compilation I use
> gcc 10.3.

You're making things far more complicated than necessary. See
https://gcc.gnu.org/wiki/InstallingGCC

Also, if you have already installed binutils to the same --prefix as
gcc then gcc will find it and use it automatically, you don't need to
use --with-as and --with-ld that way (installing all these packages to
different directories seems superficially logical, but is actually
just over-complicated and unnecessary).

I don't know why any of this would cause your problem with the specs,
but I also don't know why your configure command needs to be so long.

Have you tried simplifying your command to the minimum necessary? e.g.
remove --enable-gather-detailed-memory-stats and
--without-local-prefix ?

And why bother adding things that are the defaults anyway, like
--enable-shared --enable-threads=posix and the redundant
build/host/target options?