Work around the assumption that openat() implies the existence of

fdopendir().  FreeBSD 8 has the former, but not the latter.

PR:		122433

archivers/gtar/Makefile

@@ -25,6 +25,9 @@ CONFIGURE_ENV=	CPPFLAGS='-I${LOCALBASE}/include' \
 		LDFLAGS='-L${LOCALBASE}/lib ${LDSTATIC}' \
 		DEFAULT_ARCHIVE=/dev/sa0 \
 		DEFAULT_RMT_COMMAND=/etc/rmt
+# GNU assumes that openat() implies the existence of fdopendir(),
+# which does not hold true on FreeBSD 8.
+CONFIGURE_ENV+=	ac_cv_func_openat=no
 
 .if defined(WANT_STATIC)
 LDSTATIC=	-static

archivers/gtar/files/patch-lib_getcwd.c

@@ -0,0 +1,16 @@
+
+$FreeBSD$
+
+--- lib/getcwd.c.orig
++++ lib/getcwd.c
+@@ -30,6 +30,10 @@
+ 
+ #include <fcntl.h> /* For AT_FDCWD on Solaris 9.  */
+ 
++#ifdef __FreeBSD__
++# undef AT_FDCWD
++#endif
++
+ #ifndef __set_errno
+ # define __set_errno(val) (errno = (val))
+ #endif