Skip getline() on HP-UX 10.x.

HP-UX 10.x has a getline() implementation in libc that does not behave
as we expect so don't use it.  With correction from Thorsten Glaser and
typo fix from Larkin Nickle.

configure.ac

@@ -765,6 +765,7 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
 		if test -z "$GCC"; then
 			CFLAGS="$CFLAGS -Ae"
 		fi
+		AC_DEFINE([BROKEN_GETLINE], [1], [getline is not what we expect])
 		;;
 	*-*-hpux11*)
 		AC_DEFINE([PAM_SUN_CODEBASE], [1],

openbsd-compat/bsd-getline.c

@@ -39,7 +39,7 @@
 #include "file.h"
 #endif
 
-#if !HAVE_GETLINE
+#if !defined(HAVE_GETLINE) || defined(BROKEN_GETLINE)
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>