problem with gfortran builds on x86_64

[Christopher D. Rickett]

Hello all,

I'm not sure if this is the appropriate list for the questions I have, but 
I would appreciate any help you could give me.  I am trying to help 
someone build gfortran/gcc on their system and am having the 
following problems.

I have downloaded and successfully built gcc 4.0.1; the build included 
gcc and gfortran only.  Now, when trying to use gfortran:

$> /usr/local/gcc_4.0.1/bin/gfortran -o helloWorld -m32 helloWorld.f90
/usr/bin/ld: cannot find -lgfortranbegin
collect2: ld returned 1 exit status

My LD_LIBRARY_PATH definitely has the dir in it:

$> printenv LD_LIBRARY_PATH
/usr/local/gcc_4.0.1/lib32:/usr/local/gcc_4.0.1/lib:usr/local/gcc_4.0.1/lib64

putting the library dir explicity on the cmd line gives:

$> /usr/local/gcc_4.0.1/bin/gfortran -o helloWorld -m32 
-L/usr/local/gcc_4.0.1/lib32 helloWorld.f90 
/usr/bin/ld: skipping incompatible /usr/lib/../lib/libm.so when searching 
for -lm
/usr/bin/ld: skipping incompatible /usr/lib/../lib/libm.a when searching 
for -lm
/usr/bin/ld: skipping incompatible /usr/lib/../lib/libc.so when searching 
for -lc
/usr/bin/ld: skipping incompatible /usr/lib/../lib/libc.a when searching 
for -lc
/usr/bin/ld: warning: i386:x86-64 architecture of input file 
`/usr/lib/../lib/crt1.o' is incompatible with i386 output
/usr/bin/ld: warning: i386:x86-64 architecture of input file 
`/usr/lib/../lib/crti.o' is incompatible with i386 output
/usr/bin/ld: warning: i386:x86-64 architecture of input file 
`/usr/lib/../lib/crtn.o' is incompatible with i386 output

The system does seem to be setup a little strange; the /usr/lib obj's 
(crt1.o, ...) are the same as the 64 bit ones in /usr/lib64, and the 32 
bit versions are in /usr/lib32.  Somehow the existing gcc/gfortran on the 
box (the gcc 4.0.1 built has the same problems) don't have these errors.  
They are version 3.4.3.  I got around this in building gfortran by 
changing the specs file for the multilib build to look in lib32.  If 
anyone knows a better way to handle this, feel free to tell me.

The 4.0.1 gfortran w/o the -m32 will build, but will give the following 
error when attempting to run the program:

./helloWorld: error while loading shared libraries: libgfortran.so.0: 
cannot open shared object file: No such file or directory

Again, my LD_LIBRARY_PATH certainly has the path to this in it.

Any help you could give would be appreciated.  Thank you.

Chris Rickett