NOTES ON USING AND RECOMPILING SSPROPC UNDER LINUX

sspropc and the associated FFTW libraries were compiled using gcc
version 3.4.4 and Matlab version 7.0.4

In order to use the program, you must ensure that Matlab is using
the standard C libraries that are appropriate for this gcc version
3.4.4.  Matlab is by default distributed with older (version 3.2)
versions of these run-time libraries, which will not work with
mex files compiled with later versions of GCC.  Unfortunately,
Matlab will try to use the older library files instead of looking
for newer versions installed on your system.

There are three solutions to this problem:

(1) Matlab uses the run-time library file libgcc_s.so.1, which is
    located in matlab program directory, under a subdirectory
    called "glnx86"  There is a README file located in this same
    directory that explains how to replace the library file with the
    latest version that is appropriate for your system.  If you
    follow these instructions, then you should be able to run and
    recompile sspropc.

(2) If you do not want to tinker with files in the Matlab
    installation directories, you may also manually force Matlab
    to load the newer library files prior to execution.  From the
    shell used to launch Matlab, execute the following commands:

    setenv LD_PRELOAD /usr/local/gcc/lib/current/libgcc_s.so.1
    setenv LD_DIRECTORY_PATH /usr/local/gcc/lib
    matlab &

    Note: you may need to change the paths in the above commands
    if your system keeps the gcc libraries in a different
    location.

(3) Recompile the FFTW libraries and sspropc using an older
    version of gcc (version 3.2.3 is the version that is
    officially used by Matlab 7.0)


Here are some links that explain the problem:

http://newsreader.mathworks.com/WebX?14@897.haBVadZUNP2.0@.eef9f93
http://newsreader.mathworks.com/WebX?14@4.06Gca2cbD7k.0@.eeee1ce
http://newsreader.mathworks.com/WebX?14@173.UC6uaFvE2co.0@.ef10671