using scons on 64-bit platform, with gdc

[eles]

On Wednesday, 18 September 2013 at 07:09:27 UTC, eles wrote:
> import os
> env = Environment(ENV = os.environ)

> gcc -o test01 -m32 test01.o -L/usr/lib -lphobos2 -lpthread -lm

Related, why the scons is passing the -L/usr/lib to the gcc,
while the LD_LIBRARY_PATH variable of my bash shell is rather:

/opt/gdc-4.9/lib/../lib64

This provides a bad version of lib(g)phobos.a.

The verbose invocation of gcc (no -L parameter), that is:

gcc -v -o test01 -m64 test01.o -lgphobos2 -lpthread -lm

correctly specifies:

LIBRARY_PATH=/opt/gdc-4.9/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/:/opt/gdc-4.9/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../../lib64/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib64/:/opt/gdc-4.9/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../:/lib/:/usr/lib/

and finds the libgphobos.a from:

/opt/gdc-4.9/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../../lib64/

which, indeed, is the correct version.

Note that I have two installations of gdc, but the PATH of
/opt/gdc-4.9/bin preceded the /usr/bin:

$ which -a gcc
/opt/gdc-4.9/bin/gcc
/usr/bin/gcc