+2007-02-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ Minor fixups to port to Solaris 10 with Sun C 5.8.
+ * lib/getcwd.c [!_LIBC]: Include dirfd.h, since we use dirfd.
+ * modules/getcwd (Depends-on): Add dirfd.
+ * lib/putenv.c (putenv): #undef it.
+ (rpl_putenv): New decl.
+ (malloc, free): Include <stdlib.h> rather than prototyping separately.
+