diff options
Diffstat (limited to 'include/gnu-versions.h')
| -rw-r--r-- | include/gnu-versions.h | 68 |
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 */ |