git clone git://git.tuebingen.mpg.de/osl
+- [lopsub](http://people.tuebingen.mpg.de/maan/lopsub/). The long
+option parser for subcommands generates the command line and config
+file parsers for all paraslash executables. Clone the source code
+repository with
+
+ git clone git://git.tuebingen.mpg.de/lopsub
+
- [gcc](ftp://ftp.gnu.org/pub/gnu/gcc) or
[clang](http://clang.llvm.org). All gcc versions >= 4.2 are currently
supported. Clang version 1.1 or newer should work as well.