Beginning around RedHat 8, a new version of gcc began being distributed with
Linux. It has been found this version of gcc breaks the build of the TAE
and XID source code portions of the LAS/ADAPS package. A patch to fix the build
errors in the TAE portion of the code is provided from the Download page
(tae_build_74.patch). It is needed by those users that are running any current
flavor of Linux, most likely. It may also be needed for users on SGI's or Sun's
that are using this version of gcc as well (though this has not been verified).
gcc 3.2 is what is included in the distribution of RedHat 8.0, but we believe
the change to the compiler that causes the error with the LAS build actually is
present starting with gcc 3.0.

If you are receiving build errors similar to the following, you will probably
need to apply the patch to get your build running to completion:

   After the build, there are several files missing, with libtaec.a seeming 
   to be the major one. There is a link from clib.a to it, but no libtaec.a.

To apply the patch, change to the root of the tae directory and execute
"patch < tae_build_74.patch". Re-execute the build.

* The patch also includes a few other changes made to TAE to fix building on
  Linux and some file/directory name case issues.
* It is known that XID as well as other parts of the main LAS code will not
  compile due to the changes with gcc 3.0. We are working to provide resolutions
  to those errors at this time. They will be made available in a similar manner
  as this patch when they are ready for distribution. In the interim, if any
  external users have resolved the LAS compile issues due to this gcc change,
  you may provide us your changes (edclasadmin@usgs.gov) so that we may apply
  them to our code and provide the changes to the other external users hampered
  by this issue.