[ELDK] Ubuntu 12.04 and ELDK 4.1

[Dmitry S. Vasilchenko]

Hello,

Since I have met the same problem with ELDK 4.2 and Ubuntu 12.04 and
was able to fix (or at list WA) it, hope that this information might
be usefull.

1. build at build:/opt/eldk$ which gcc
/opt/eldk/usr/ppc-linux/bin/gcc

build at build:/opt/eldk$ gcc -o test main.c
/opt/eldk/usr/bin/../lib/gcc/powerpc-linux/4.2.2/../../../../powerpc-linux/bin/ld:
crt1.o: No such file: No such file or directory
collect2: ld returned 1 exit status

build at build:/opt/eldk$ ls -la /opt/eldk/usr/ppc-linux/bin/gcc
lrwxrwxrwx 1 build build 27 Jun 25 17:12
/opt/eldk/usr/ppc-linux/bin/gcc -> ../../bin/powerpc-linux-gcc

build at build:/opt/eldk$
/opt/eldk/usr/ppc-linux/bin/../../bin/powerpc-linux-gcc -o test main.c
Success!

It is possible to run compiler directly (not via a symbolic link "gcc").

2. Further investigation revealed, that a symbolic link with an
absolute path is OK:

build at build:/opt/eldk$ rm /opt/eldk/usr/ppc-linux/bin/gcc
build at build:/opt/eldk$ ln -s /opt/eldk/usr/bin/powerpc-linux-gcc
/opt/eldk/usr/ppc-linux/bin/gcc
build at build:/opt/eldk$ gcc -o test main.c
Success!

3. The "strace" tool showed that the problem appears on the step of
unrolling relative path in the symbolic link:
lstat64("/opt/eldk/usr/ppc-linux/bin/gcc", {st_mode=S_IFLNK|0777,
st_size=27, ...}) = 0
readlink("/opt/eldk/usr/ppc-linux/bin/gcc",
"../../bin/powerpc-linux-gcc", 4096) = 27
lstat64("/opt/eldk/usr/ppc-linux/.owerpc-owerpc-linux-gcc",
0xbfdde670) = -1 ENOENT (No such file or directory)  <<<--- SMTH goes
wrong here!


So, concluding: the WA to fix ELDK compiler on Ubuntu 12.04 is to
replace each relative symbolic link in $ELDK_PREFIX/usr/ppc-linux/bin/
with the link containing an absolute path, e.g. (for powerpc!):
$ cd $ELDK_PREFIX/usr/ppc-linux/bin;
$ for X in ar as  g++ gcc ld ldd nm objdump ranlib strip; do
$   rm $X;
$   ln -s $ELDK_PREFIX/usr/bin/powerpc-linux-$X $X;
$ done


-- 
Best regards,
Dmitry S. Vasilchenko