This meta package contains the components necessary to build MSYS-dependent applications and libraries, as well as the MSYS DLL itself. It does not include headers or link libraries needed to use pre-built MSYS libraries distributed by the MinGW/MSYS project; if desired, those should be installed as needed, individually. In a manner of speaking, this "replicates" the tools installed by the old "msysDVLPR" package ~~ although (1) that package contained an obsolete version of gcc-2.95.3, while the tools installed by this (meta) package are much newer, and (2) this (meta) package also adds MSYS-customized versions of the autotools (autoconf, automake, libtool, gettext, and libiconv). These msys-autotools can be installed and used in parallel with the normal, MinGW-flavored ones installed by the MinGW Developer Toolkit (MinGW-DTK).