$NetBSD: patch-configure,v 1.4 2012/10/13 00:49:38 darcy Exp $

- Add DragonFly support

--- configure.orig	2012-08-23 02:13:11.000000000 +0000
+++ configure
@@ -4411,6 +4411,108 @@ fi
 
                    ;;
 
+  dragonfly*)      OSTYPE=DragonFly ;
+                   OS_TAG="P_DRAGONFLY" ;
+                   if test "x$OSRELEASE" = "x"; then
+                     OSRELEASE="`sysctl -n kern.osreldate`" ;
+                   fi
+                   need_pragma=yes ;
+
+cat >>confdefs.h <<\_ACEOF
+#define P_PTHREADS 1
+_ACEOF
+
+          { echo "$as_me:$LINENO: checking for swab" >&5
+echo $ECHO_N "checking for swab... $ECHO_C" >&6; }
+if test "${ac_cv_func_swab+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define swab to an innocuous variant, in case <limits.h> declares swab.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define swab innocuous_swab
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char swab (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef swab
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char swab ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_swab || defined __stub___swab
+choke me
+#endif
+
+int
+main ()
+{
+return swab ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+    test -z "$ac_cxx_werror_flag" ||
+    test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_func_swab=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+   ac_cv_func_swab=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func_swab" >&5
+echo "${ECHO_T}$ac_cv_func_swab" >&6; }
+if test $ac_cv_func_swab = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define USE_SYSTEM_SWAB
+_ACEOF
+
+fi
+
+          ;;
+
   freebsd*|kfreebsd*)       OSTYPE=FreeBSD ;
 		   OS_TAG="P_FREEBSD" ;
                    if test "x$OSRELEASE" = "x"; then
@@ -6806,7 +6908,7 @@ $as_echo "no" >&6; }
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
               case "$target_os" in
-                freebsd*|openbsd*|netbsd*|darwin*|beos*)
+                dragonfly*|freebsd*|openbsd*|netbsd*|darwin*|beos*)
                   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lc" >&5
 $as_echo_n "checking for dlopen in -lc... " >&6; }
 if ${ac_cv_lib_c_dlopen+:} false; then :