ifort not finding .so file located in another directory despite (LD_)LIBRARY_PATH

[mirko_vukovic]

I am trying my hand at building and using library files (.so extension), using ifort 10.1.011 on 64-bit RH Enterprise Linux 5.

I have defined both LD_LIBRARY_PATH and LIBRARY_PATH to point to the directory where the library resides, but the linker still does not find it. Here is a copy of the linker command & output, and of two ls commands. As you can see, if I do an ls using the values of the environment variables, the file is there:

---

(output from make:)
ifort -o profile_test profile_test.o libprofiles.so libtecplot_utils.so
ld: libtecplot_utils.so: No such file: No such file or directory
make: *** [profile_test] Error 1
> ls `echo $LD_LIBRARY_PATH | cut -d: -f1`
libtecplot_utils.so
> ls $LIBRARY_PATH
libtecplot_utils.so

---

Is there some other environment variable that I need to set? Or am I missing something that ld is trying to tell me.

I am also confused about the roles of LD_LIBRARY_PATH and LIBRARY_PATH. Are they both for the same purpose?

Thank you,

Mirko

[TimP]

At link time, you must employ the usual unix/linux syntax to specify the path and library name e.g.
ifort -L ..... *.o -ltecplot_utils

or specify the full path name of the .so, when it is not on a -L path.
LD_LIBRARY_PATH doesn't have effect at link time; you will need it at run time.

[mirko_vukovic]

Of course!

what confused me was that during my initial testing, I had the library in the same directory with the other code. So, I was able to link to it by just refering explicitly to it (without the -l option).

Off course, that broke down, once I placed it in the library directory.

Thank you very much

Mirko