> Some code that compiled successfully with older GCC versions might require source changes, see http://gcc.gnu.org/gcc-8/porting_to.html http://gcc.gnu.org/gcc

> Some code that compiled successfully with older GCC versions might require source changes, see http://gcc.gnu.org/gcc-8/porting_to.html http://gcc.gnu.org/gcc-8/porting_to.html for details. I followed the link, and almost all of the changes are C++ related. The exception is a change to the way some Fortran subroutines are called from C.