* c-lex.c (init_lex): Use getenv ("LANG"), not GET_ENVIRONMENT ().
        * cccp.c (main): Likewise.
        * gcc.c (process_command): Similarly for "GCC_EXEC_PREFIX".
        * cccp.c, collect2.c, cpplib.c, gcc.c, config/i386/xm-cygwin32.h:
        Rename GET_ENVIRONMENT to GET_ENV_PATH_LIST, and fix some
        macro-use bugs.

From-SVN: r22511