Gentoo's Bugzilla –
Attachment 371448 Details for
Bug 503076dev-lang/gdl-0.9.4 with sci-libs/plplot-5.10.0 - In file included from work/gdl-0.9.4/src/gdleventhandler.cpp:28: /usr/include/plplot/plConfig.h:48:29: fatal error: plplot_config.h: No such file or directory