Martin, With your recent patch, I receive the following failure building libgcov-driver-system.c
In file included from /nasfarm/edelsohn/src/src/gcc/../libgcc/libgcov-driver.c:322:0: /nasfarm/edelsohn/src/src/gcc/../libgcc/libgcov-driver-system.c: In function 'char* replace_filename_variables(char*)': /nasfarm/edelsohn/src/src/gcc/../libgcc/libgcov-driver-system.c:193:61: error: 'mempcpy' was not declared in this scope buffer_ptr = (char *)mempcpy (buffer_ptr, filename, start); mempcpy is a GLIBC extension and not defined in POSIX. There is no libiberty implementation. Please avoid use of GLIBC-specific functions. Thanks, David