This is the GNU C compiler for the x86_64-linux-gnu architecture, a fairly portable optimizing compiler for C.

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

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

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

LFortran is a modern open-source (BSD licensed) interactive Fortran compiler built on top of LLVM. It can execute user’s code interactively to allow exploratory work (much like Python, MATLAB or Julia) as well as compile to binaries with the goal to run user’s code on modern architectures such as multi-core CPUs and GPUs.

Pktools is a collection of programs to perform operations, mostly on raster geolocated images. It heavily relies on the Geospatial Data Abstraction Library (GDAL) and OGR. The programs are similar to the GDAL tools (gdalinfo, gdal_translate, gdal_merge, ...) and some of the functionalities provided in pktools already exist in the GDAL tools.