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-The following notes apply just for LAPACK built against ATLAS.
-
-IMPORTANT NOTES:
-
-
-1) If you update ATLAS, you MUST also rebuild and reinstall LAPACK, even if
- there is no update available for LAPACK! Otherwise you end up with a
- broken/incomplete LAPACK library!
-
-2) This SlackBuild conflicts with the lapack.SlackBuild which is meant mainly
- for compilation against the reference BLAS. You may install LAPACK by
- this SlackBuild in parallel with the LAPACK built against the reference BLAS
- if you use the SYS_DESTDIR and DEFAULT_DOCS variables (see below), but then
- you are on your own, especially when compiling other software against LAPACK
- and BLAS/ATLAS.
-
-3) There are a few extra variables which you may want or need to give
- appropriate values when calling the lapack-atlas.SlackBuild: SYS_DESTDIR,
- DEFAULT_DOCS, USE_ATLAS_PT_LIBS and TEST_LAPACK.
-
- SYS_DESTDIR is set by default to "/usr" and is the system destination
- directory. When installing the package produced by this SlackBuild,
- LAPACK's files will be written to $SYS_DESTDIR/lib (or lib64).
- Documentation files are written to /usr/doc/lapack-atlas-$VERSION if not
- otherwise stated (see below).
- You may want to change the value of SYS_DESTDIR to avoid conflicts (see
- the notes above). IMPORTANT: SYS_DESTDIR has to have an absolute
- path as value.
-
- DEFAULT_DOCS has the default value "yes", which means that docs go
- to /usr/doc/lapack-atlas-$VERSION, but you may want to let the docs to
- go to $SYS_DESTDIR/doc/lapack-atlas-$VERSION. For this, just set this
- variable to something like "no".
-
- USE_ATLAS_PT_LIBS is set by default to "yes" which means that this script
- will try to build LAPACK against the threaded ATLAS libs. On a single
- processor machine these are missing and you will get a WARNING which you
- can ignore, since ATLAS will not create these libraries on such a machine.
- On a multi processor machine the WARNING should not be there and you need to
- set this variable to "no" if you want to force LAPACK to build against the
- single threaded ATLAS libraries. At this point in time this is discouraged
- and you are on your own if you do it, especially when compiling other
- software which depends on LAPACK and ATLAS.
-
- TEST_LAPACK is set by default to "no" which means that this script will not
- try to run the LAPACK test suite. Set it to "yes" if you want the opposite.
-
- All these settings may be done the usual way on the command line when
- calling this SlackBuild, you do not have to edit the script.