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-rw-r--r--src/backend/port/linux/port-protos.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/backend/port/linux/port-protos.h b/src/backend/port/linux/port-protos.h
new file mode 100644
index 00000000000..f80cd62d424
--- /dev/null
+++ b/src/backend/port/linux/port-protos.h
@@ -0,0 +1,37 @@
+/*-------------------------------------------------------------------------
+ *
+ * port-protos.h--
+ * port-specific prototypes for SunOS 4
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: port-protos.h,v 1.1.1.1 1996/07/09 06:21:44 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PORT_PROTOS_H
+#define PORT_PROTOS_H
+
+#include "fmgr.h" /* for func_ptr */
+#include "utils/dynamic_loader.h"
+#ifdef LINUX_ELF
+#include "dlfcn.h"
+#endif
+
+/* dynloader.c */
+
+#ifndef LINUX_ELF
+#define pg_dlsym(handle, funcname) ((func_ptr) dld_get_func((funcname)))
+#define pg_dlclose(handle) ({ dld_unlink_by_file(handle, 1); free(handle); })
+#else
+/* #define pg_dlopen(f) dlopen(f, 1) */
+#define pg_dlopen(f) dlopen(f, 2)
+#define pg_dlsym dlsym
+#define pg_dlclose dlclose
+#define pg_dlerror dlerror
+#endif
+
+/* port.c */
+
+#endif /* PORT_PROTOS_H */