Move over the BSDi port files

src/backend/port/dynloader/bsdi.h

@@ -0,0 +1,34 @@
+/*-------------------------------------------------------------------------
+ *
+ * port-protos.h--
+ *	  port-specific prototypes for SunOS 4
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * port-protos.h,v 1.2 1995/05/25 22:51:03 andrew Exp
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PORT_PROTOS_H
+#define PORT_PROTOS_H
+
+#include "fmgr.h"				/* for func_ptr */
+#include "utils/dynamic_loader.h"
+
+/* dynloader.c */
+
+#ifndef  PRE_BSDI_2_1
+#include <dlfcn.h>
+#define		  pg_dlopen(f)	  dlopen(f, 1)
+#define		  pg_dlsym		  dlsym
+#define		  pg_dlclose	  dlclose
+#define		  pg_dlerror	  dlerror
+#else
+#define pg_dlsym(handle, funcname)	  ((func_ptr) dld_get_func((funcname)))
+#define pg_dlclose(handle)			  ({ dld_unlink_by_file(handle, 1); free(handle); })
+#endif
+
+/* port.c */
+
+#endif							/* PORT_PROTOS_H */