gcc install fails silently (AVR build)

[Georg-Johann Lay]

Sylvain Leroux schrieb:
> Hi,
> 
> I'm tying to compile gcc for AVR. configure, make and make install went 
> smoothly (i.e.: without any /visible/ error) - but I noticed that 'g++' 
> was installed but not 'gcc'. I spend a lot of time trying and googling 
> without much progress.
> 
> I have all the required dependencies and a working gcc/binutils/libc for 
> my platform (Debian Squeeze x86_64). Here is my setting:
> 
> sh$ export VERSION=4.7.1
> sh$ wget "ftp://ftp.gnu.org/gnu/gcc/gcc-${VERSION}/gcc-${VERSION}.tar.bz2"
> sh$ tar xjf gcc-${VERSION}.tar.bz2
> sh$ mkdir gcc-${VERSION}-build
> sh$ cd gcc-${VERSION}-build/
> sh$ ../gcc-${VERSION}/configure --prefix=/tmp/gcc-${VERSION} \
>                            --program-prefix=avr- 
> --program-suffix=-${VERSION} \
>                            --target=avr \
>                            --enable-languages=c,c++
>  sh$ make -j9
>  sh$ make install
> 
> 
> At this point, when looking in the installation directory, I notice that 
> 'g++' is there, but not 'gcc':
>  sh$ ls /tmp/gcc-4.7.1/bin/
> avr-c++-4.7.1  avr-g++-4.7.1     avr-gcc-nm-4.7.1      avr-gcov-4.7.1
> avr-cpp-4.7.1  avr-gcc-ar-4.7.1  avr-gcc-ranlib-4.7.1
> 
> *But*, the cross compiler are present in the build directory:
>  sh$ ls -l gcc/*cross*
> -rwxr-xr-x 1 sylvain sylvain 1667242 Jul 17 19:52 gcc/gcc-cross
> -rwxr-xr-x 1 sylvain sylvain 1680692 Jul 17 19:52 gcc/g++-cross
> 
> 
> By looking at the output of 'make install' I notice an error while 
> copying gcc-cross:
> 
> -------8<----------
> rm -f /tmp/gcc-4.7.1/bin/avr-gcc-4.7.1
> /usr/bin/install -c xgcc /tmp/gcc-4.7.1/bin/avr-gcc-4.7.1
> rm -f /tmp/gcc-4.7.1/bin/avr-gcc-4.7.1
> ( cd /tmp/gcc-4.7.1/bin && \
>            ln avr-gcc-4.7.1 avr-gcc-4.7.1 )       <<<<<<<  STRANGE ???
> ln: accessing `avr-gcc-4.7.1': No such file or directory
> make[2]: [install-driver] Error 1 (ignored)       <<<<<<<  ERROR !!!
> if [ -f gcc-cross ] ; then \
>           if [ -d /tmp/gcc-4.7.1/lib/gcc/avr/4.7.1/../../../../avr/bin/. 
> ] ; then \
>             rm -f 
> /tmp/gcc-4.7.1/lib/gcc/avr/4.7.1/../../../../avr/bin/gcc; \
>             /usr/bin/install -c gcc-cross 
> /tmp/gcc-4.7.1/lib/gcc/avr/4.7.1/../../../../avr/bin/gcc; \
>           else true; fi; \
>         else \
>           rm -f /tmp/gcc-4.7.1/bin/avr-gcc-tmp; \
>           ( cd /tmp/gcc-4.7.1/bin && \
>             ln avr-gcc-4.7.1 avr-gcc-tmp && \
>             mv -f avr-gcc-tmp avr-avr-gcc-4.7.1 ); \
>         fi
> -------8<----------
> 
> There is something strange here: the script try to link gcc on itself 
> (ln avr-gcc-4.7.1 avr-gcc-4.7.1) in the destination folder just after 
> having removed it if present (rm -f /tmp/gcc-4.7.1/bin/avr-gcc-4.7.1) 
> and before actually copying it ???
> 
> Obviously something went bad there. I suspect I was doing the wrong way 
> at configure-time: while I reconfigure without 
> ''--program-prefix=avr-'', ''make install'' install ''avr-gcc-4.7.1'' in 
> the destination directory, but all the other binaries are without the 
> ''avr-'' prefix (like ''g++-4.7.1'').
> 
> Anyway, the really puzzling thing here is that in on case it works for 
> g++ (''avr-g++-4.7.1'') but not gcc - and the other case this is the 
> opposite... Is there any way to have all the executables installed with 
> their name rewritten as ''avr-XXXX-4.7.1''?
> 
> 
> I would be very grateful for any help or pointer with this issue,
> Thanks in advance,
> - Sylvain.

You tried without the program suffix?

If you configure without program-suffix and -prefix, the default name of
the compiler will ne avr-gcc and also an avr-gcc-4.7.1 will be installed.

Maybe that coincidence confused the build script?

If you also downloaded the sources to /tmp/gcc-4.7.1 don't install
the compiler to that location.