Eclipse is a graphical source code editing program.
f2c is a program to convert fortran source code to C source code.
gdb is the GNU project debugger
Git is a version control system for managing source code trees.
GNU Make is a software compilation program.
C, C++, and Fortran compilers from the GNU project.
Haskell is an advanced purely-functional programming language.
Intel compilers for C, C++ and Fortran.