Install question

[Jerry DeLisle]

I hope this is not too off subject.

To test gfortran I am configuring to --prefix=/home/jerry/usr.  After
building/testing I run make install.

To actually run test fortran codes I edited /etc/ld.so.conf to include
this line.  

	/home/jerry/usr/lib

I then run ldconfig so that when running programs, the libgfortran.so
can be found.

Am I doing this correctly?  Is there another way I should do this?

Should I rerun ldconfig after each new install?

I have assumed that the libraries are overwritten and that at run time
the new library with the same name will get loaded as needed.

I use a link in my home /bin directory to point
to /home/jerry/usr/bin/gfortran so I can invoke the compiler from
whatever working directory I am using.  All seems to be working but I
was concerned that I may be getting libraries messed up.  I use ldd to
check the executables and the libgfortran appears to be the correct one,
but I see other libraries out of /lib. For example:

 ldd xeigtsts

   libgfortran.so.0 => /home/jerry/usr/lib/libgfortran.so.0(0x006ce000)
   libm.so.6 => /lib/tls/libm.so.6 (0x00c00000)
   libgcc_s.so.1 => /home/jerry/usr/lib/libgcc_s.so.1 (0x00516000)
   libc.so.6 => /lib/tls/libc.so.6 (0x00ad4000)
   /lib/ld-linux.so.2 (0x00abb000)

Does this look OK?

Jerry