under dramatic changes...

h2/libltdl/libltdl/lt_error.h

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+/* lt_error.h -- error propogation interface
+
+   Copyright (C) 1999, 2000, 2001, 2004, 2007 Free Software Foundation, Inc.
+   Written by Thomas Tanner, 1999
+
+   NOTE: The canonical source of this file is maintained with the
+   GNU Libtool package.  Report bugs to bug-libtool@gnu.org.
+
+GNU Libltdl is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+As a special exception to the GNU Lesser General Public License,
+if you distribute this file as part of a program or library that
+is built using GNU Libtool, you may include this file under the
+same distribution terms that you use for the rest of that program.
+
+GNU Libltdl is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with GNU Libltdl; see the file COPYING.LIB.  If not, a
+copy can be downloaded from  http://www.gnu.org/licenses/lgpl.html,
+or obtained by writing to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+/* Only include this header file once. */
+#if !defined(LT_ERROR_H)
+#define LT_ERROR_H 1
+
+#include <libltdl/lt_system.h>
+
+LT_BEGIN_C_DECLS
+
+/* Defining error strings alongside their symbolic names in a macro in
+   this way allows us to expand the macro in different contexts with
+   confidence that the enumeration of symbolic names will map correctly
+   onto the table of error strings.  \0 is appended to the strings to
+   expilicitely initialize the string terminator. */
+#define lt_dlerror_table						\
+    LT_ERROR(UNKNOWN,		    "unknown error\0")			\
+    LT_ERROR(DLOPEN_NOT_SUPPORTED,  "dlopen support not available\0")	\
+    LT_ERROR(INVALID_LOADER,	    "invalid loader\0")			\
+    LT_ERROR(INIT_LOADER,	    "loader initialization failed\0")	\
+    LT_ERROR(REMOVE_LOADER,	    "loader removal failed\0")		\
+    LT_ERROR(FILE_NOT_FOUND,	    "file not found\0")			\
+    LT_ERROR(DEPLIB_NOT_FOUND,	    "dependency library not found\0")	\
+    LT_ERROR(NO_SYMBOLS,	    "no symbols defined\0")		\
+    LT_ERROR(CANNOT_OPEN,	    "can't open the module\0")		\
+    LT_ERROR(CANNOT_CLOSE,	    "can't close the module\0")		\
+    LT_ERROR(SYMBOL_NOT_FOUND,	    "symbol not found\0")		\
+    LT_ERROR(NO_MEMORY,		    "not enough memory\0")		\
+    LT_ERROR(INVALID_HANDLE,	    "invalid module handle\0")		\
+    LT_ERROR(BUFFER_OVERFLOW,	    "internal buffer overflow\0")	\
+    LT_ERROR(INVALID_ERRORCODE,	    "invalid errorcode\0")		\
+    LT_ERROR(SHUTDOWN,		    "library already shutdown\0")	\
+    LT_ERROR(CLOSE_RESIDENT_MODULE, "can't close resident module\0")	\
+    LT_ERROR(INVALID_MUTEX_ARGS,    "internal error (code withdrawn)\0")\
+    LT_ERROR(INVALID_POSITION,	    "invalid search path insert position\0")\
+    LT_ERROR(CONFLICTING_FLAGS,	    "symbol visibility can be global or local\0")
+
+/* Enumerate the symbolic error names. */
+enum {
+#define LT_ERROR(name, diagnostic)	LT_CONC(LT_ERROR_, name),
+	lt_dlerror_table
+#undef LT_ERROR
+
+	LT_ERROR_MAX
+};
+
+/* Should be max of the error string lengths above (plus one for C++) */
+#define LT_ERROR_LEN_MAX (41)
+
+/* These functions are only useful from inside custom module loaders. */
+LT_SCOPE int	lt_dladderror	(const char *diagnostic);
+LT_SCOPE int	lt_dlseterror	(int errorcode);
+
+
+LT_END_C_DECLS
+
+#endif /*!defined(LT_ERROR_H)*/