This is the GNU C++ compiler, a fairly portable optimizing compiler for C++.

GOMP is an implementation of OpenMP for the C, C++, and Fortran compilers in the GNU Compiler Collection.

libcss-inliner-perl provides the CSS::Inliner Perl module which converts CSS style blocks into inline styles in an HTML document. Specifically this is intended to ease generation of HTML emails.

This is the GNU Go compiler, which compiles Go on platforms supported by the gcc compiler. It uses the gcc backend to generate optimized code.

carrotsearch-procfork is used to fork processes and collect their output.

This package contains the headers and static library files necessary for building C++ programs which use libstdc++.