* gnu-system.am (dist_patch_DATA): Add it. * gnu/packages/patches/plotutils-libpng-jmpbuf.patch: New file. * gnu/packages/plotutils.scm (plotutils): Add `plotutils-libpng-jmpbuf.patch' as an input, and apply it.
* gnu/packages/plotutils.scm (plotutils): Add libx11, libxt, and libxaw as inputs.
* gnu/packages/plotutils.scm: New file. * Makefile.am (MODULES): Add it.