 In 1997, a group of developers formed Experimental/Enhanced GNU Compiler System (EGCS) to merge several experimental forks into a single project.The basis of the merger was a GCC development snapshot taken between the 2.7 and 2.81 releases.Projects merged included g77 (Fortran), PGCC (P5 Pentium-optimized GCC), many C++ improvements, and many new architectures and operating system variants.