GCC & GNU Toolchain Developers' Summit
Computers, Programming, Compilers, GNU Compiler Collection - GCC GNU Toolchain Developers' Summit. Brings together the core development team of the GNU Compiler Collection with those working on the other toolchain components to discuss the state of the art.
https://www.gccsummit.org/
PL/I for GCC
Computers, Programming, Compilers, GNU Compiler Collection - PL/1 for GCC. A PL/1 front-end for GNU Compiler Collection.
https://pl1gcc.sourceforge.net/