Re: GCC build issues - struggling

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On Wed, Dec 29, 2010 at 6:53 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote:
> On 29 December 2010 18:32, Dan Track wrote:
>>
>> Thanks for the detailed response. Due to the server layout I can't
>> install anywhere except in /opt. Apologies, the original gmp layout
>> was a mistake, I can confirm that my gmp is in the following location:
>>
>> file /opt/gcc/usr/lib/libgmp.so
>> /opt/gcc/usr/lib/libgmp.so: symbolic link to `libgmp.so.3.5.2'
>>
>> file /opt/gcc/usr/lib/libgmp.so.3.5.2
>> /opt/gcc/usr/lib/libgmp.so.3.5.2: ELF 64-bit LSB shared object,
>> x86-64, version 1 (SYSV), not stripped
>
> (Personally I wouldn't have put "usr" in the path for gmp, i.e I'd
> have installed it in /opt/gcc/lib not /opt/gcc/usr/lib, but it
> shouldn't hurt, as long you actually pass the right path to configure,
> which you're not doing.)
>
>> My server is:
>> uname -a
>> Linux sn37v98 2.6.16.60-0.69.1-smp #1 SMP Fri Sep 17 17:07:54 UTC 2010
>> x86_64 x86_64 x86_64 GNU/Linux
>>
>> With regards to the LD_LIBRARY_PATH, I’ve generally not liked its use.
>> I know it will work when I set it with the location, but I would
>> prefer to pass the details via the configure script. Is there a way to
>> do, it given the –with-gmp doesn’t work for the second stage?
>
> --with-gmp would work if you said --with-gmp=/opt/gcc/usr instead of /opt/gcc
>
> But it would still need to find the shared libs at runtime, which is
> why I suggest the use of LD_LIBRARY_PATH.  The other options are to
> link statically to gmp (the easiest option IMHO) which is what my
> config-gcc.mk makefile configures, by putting the GMP, MPFR and MPC
> sources in the GCC source tree.
>
> If you want to hardcode the library locations into the gcc executables
> you can try using the -R or -rpath linker options, but the -L options
> you're passing to configure will not help.
>
>> Also I’ve compiled the same gcc with just a prefix location and
>> nothing else in the configure argument except the environment
>> variables but it still didn’t build, I had to set LD_LIBRARY_PATH to
>> make it find mpr, gmp etc...
>>
>> The various environment variables set:
>>
>>>> CC=/opt/utils/usr/bin/gcc CXX=/opt/utils/usr/bin/g++ CFLAGS="-g3 -O0
>>>> -I/opt/utils/usr/include" BOOT_LDFLAGS="-L/opt/gcc/lib
>>>> -L/opt/gcc/usr/lib -L/opt/utils/lib -L/opt/utils/usr/lib"
>
> Just use --with-gmp and --with-mpfr and --with-mpc instead.  They set
> the include dirs and lib dirs correctly (assuming you give the right
> path, which seems to be /opt/gcc/usr not /opt/gcc as you have been
> using)
>
> But, as I said above, that won't remove the need for finding the
> shared libs at runtime.
>
>> were done to aid in finding mpc etc, which are located in another location i.e.:
>> /opt/gcc/lib and
>> /opt/gcc/lib64
>
> If you'd put gmp in there too it would've made things a bit simpler :-)
>

Hi Jonathan,

Many many thanks for that. You're a star and I owe you one. It's
worked and got past that error, although I have a new compilation
issue but I'll open a new thread on that.

Thanks
Dan



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