fixincludes script interacts badly with automounters; if the
directory of system header files is automounted, it tends to be
unmounted while fixincludes is running.  This would seem to be a
bug in the automounter.  We don't know any good way to work around it.
     fixproto script will sometimes add prototypes for the
sigsetjmp and siglongjmp functions that reference the
jmp_buf type before that type is defined.  To work around this,
edit the offending file and place the typedef in front of the
prototypes.
     -pedantic-errors is specified, GCC will incorrectly give
an error message when a function name is specified in an expression
involving the comma operator.