Re: SOLVED: Re: gcc-4.7.4: libgcc2.h:157: error: unable to emulate 'TF'

[U.Mutlu]

Jan Nieuwenhuizen wrote on 07/11/2018 07:01 PM:
> U.Mutlu writes:
>
> > Just a tip: you can build the compiler much faster if you use 
> > --disable-bootstrap
> > (here it reduces the compile time from 111 minutes down to 12 minutes).
> > After it's ok, then you can build w/o it to also test the
> > bootstrapping.
>
> Thanks!  I'm very grateful for your help.  I succeeded in building
> gcc-4.7.4 from almost no binary seeds[0] for GuixSD!

Congrats!  :-)

Can you give us some info on your project? (mes?)
I think you mentioned TCC, scheme, own header files etc.
Did you still had to use also the old gcc 2.95.3 ?
What's the goal, and why especially that target version gcc 4.7.4 ?
As I could figure out, GuixSD is a (new) GNU package manager, right?
Just a little bit curious about your complicated looking project :-)


> The weird error in Subject was caused by configure+make (and my usage of
> configure flags, environment settings) trying to use CC_FOR_BUILD (the
> i368-unknow-linux-gcc 2.95.3 compiler) to build libgcc2.c
>
> Here's the configure that I used, which works.
>
> ../build/configure\
>   --build=i686-unknown-linux-gnu\
>   --host=i686-unknown-linux-gnu\
>   
> --with-native-system-header-dir=/gnu/store/lwadx3lm73f8rmy8cvwijrflb9wgcm7j-glibc-mesboot-2.2.5/include\
>   
> --with-build-sysroot=/gnu/store/lwadx3lm73f8rmy8cvwijrflb9wgcm7j-glibc-mesboot-2.2.5/include\
>   --prefix=/gnu/store/bci6j4dfrmkfzqbpbbcz5ypk8xmr0j5z-gcc-mesboot-4.7.4\
>   --disable-bootstrap\
>   --disable-decimal-float\
>   --disable-libatomic\
>   --disable-libcilkrts\
>   --disable-libgomp\
>   --disable-libitm\
>   --disable-libmudflap\
>   --disable-libquadmath\
>   --disable-libsanitizer\
>   --disable-libssp\
>   --disable-libvtv\
>   --disable-lto\
>   --disable-lto-plugin\
>   --disable-multilib\
>   --disable-plugin\
>   --disable-shared\
>   --disable-threads\
>   --enable-languages=c\
>   --enable-static\
>   --enable-threads=single\
>   --disable-libstdc__-v3\
>   --disable-libstdcxx-pch\
>   --disable-build-with-cxx
>
> Greetings,
> janneke
>
> [0] 
> http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/mes.scm?h=wip-bootstrap