* Makefile.in (CFILES): Add calloc.c and getpwd.c.
(REQUIRED_OFILES): Add getpwd.o.
(getpwd.o): Add target.
* configure.in (AC_PREREQ): Bump to 2.13.
(AC_CHECK_HEADERS): Add check for <sys/stat.h>.
* getpwd.c: New file, moved here from gcc.
From-SVN: r28996