Compile errors with MSVC

[Gisle Vanem]

Hello list.

The Windows port of Gnu-make has some issues:
  dep.h(60): error C2059: syntax error: ';'
  dep.h(61): error C2059: syntax error: '}'
  dep.h(69): error C2059: syntax error: ';'
  dep.h(70): error C2365: 'error': redefinition; previous definition was 
'function'

MSVC does not handle an extra ';' inside a struct.
And:
  dir.c(528,24): error: use of undeclared identifier 'p'
      memcpy (tem, name, p - name + 1);
                         ^
  dir.c(532,24): error: use of undeclared identifier 'p'
      for (tend = tem + (p - name - 1);
                         ^

I just checked out a copy and saw this when
building with MSVC and clang-cl.

--
--gv