dev-util/codeblocks
The open source, cross platform, free C, C++ and Fortran IDE
USE Flags
contrib
Global: Build additional contrib components
Local: Build additional contrib components
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
fortran
Global: Adds support for fortran (formerly f77)