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-rw-r--r--include/gnu-versions.h68
1 files changed, 46 insertions, 22 deletions
diff --git a/include/gnu-versions.h b/include/gnu-versions.h
index f642f6aee..59e617c4b 100644
--- a/include/gnu-versions.h
+++ b/include/gnu-versions.h
@@ -1,29 +1,53 @@
-/* Header to ignore some special GNU libc interfaces not provided
- * by uClibc. */
+/* Header with interface version macros for library pieces copied elsewhere.
+ Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library 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 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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 the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#ifndef _GNU_VERSIONS_H
#define _GNU_VERSIONS_H 1
-/* This file exists to avoid uClibc getting into trouble these macros
- such as the following:
-
- #define OBSTACK_INTERFACE_VERSION 1
- #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
- #include <gnu-versions.h>
- #if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION
- #define ELIDE_CODE
- #endif
- #endif
-
- By defining bogus interface versions, I believe we can safely get
- past such things while continuing to lie and define __GNU_LIBRARY__,
- thereby getting better compatibility with the majority of the code
- written for Linux. */
-
-#define _GNU_OBSTACK_INTERFACE_VERSION -1 /* vs malloc/obstack.c */
-#define _GNU_REGEX_INTERFACE_VERSION -1 /* vs posix/regex.c */
-#define _GNU_GLOB_INTERFACE_VERSION -1 /* vs posix/glob.c */
-#define _GNU_GETOPT_INTERFACE_VERSION -1 /* vs posix/getopt.c and
+/* This file exists to define these few macros. Each specifies a version
+ number associated with the library interface of a piece of the C library
+ which is also distributed with other GNU packages. These pieces are
+ both part of the GNU C library and also distributed with other GNU
+ packages so those packages may use their facilities on systems lacking
+ the GNU C library. The source files for each piece surround all their
+ code with `#ifndef ELIDE_CODE' after defining it with this:
+
+ #define OBSTACK_INTERFACE_VERSION 1
+ #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
+ #include <gnu-versions.h>
+ #if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION
+ #define ELIDE_CODE
+ #endif
+ #endif
+
+ This allows those one to avoid compiling those files when part of a GNU
+ package not libc, on a system using a GNU C library that supports the
+ same interface.
+
+ Please preserve the format of the comments after each macro. And
+ remember, if any of these versions change, the libc.so major version
+ number must change too (so avoid it)! */
+
+#define _GNU_OBSTACK_INTERFACE_VERSION 1 /* vs malloc/obstack.c */
+#define _GNU_REGEX_INTERFACE_VERSION 1 /* vs posix/regex.c */
+#define _GNU_GLOB_INTERFACE_VERSION 1 /* vs posix/glob.c */
+#define _GNU_GETOPT_INTERFACE_VERSION 2 /* vs posix/getopt.c and
posix/getopt1.c */
#endif /* gnu-versions.h */