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Make 'dummy' declarations in header files be 'extern int no_such_variable' 

instead of 'extern int errno'; the latter is unsafe according to the
ANSI C standard, as well as in practice on some platforms.
This commit is contained in:
Tom Lane 2002-10-18 20:33:57 +00:00
parent dad34ba567
commit 6c06bc2644
3 changed files with 7 additions and 11 deletions
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6
src/include/catalog/indexing.h
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: indexing.h,v 1.75 2002/09/04 20:31:37 momjian Exp $
* $Id: indexing.h,v 1.76 2002/10/18 20:33:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -98,8 +98,8 @@ extern void CatalogUpdateIndexes(Relation heapRel, HeapTuple heapTuple);
* These macros are just to keep the C compiler from spitting up on the
* upcoming commands for genbki.sh.
*/
#define DECLARE_INDEX(x) extern int errno
#define DECLARE_UNIQUE_INDEX(x) extern int errno
#define DECLARE_INDEX(x) extern int no_such_variable
#define DECLARE_UNIQUE_INDEX(x) extern int no_such_variable
#define BUILD_INDICES

6
src/include/postgres.h
View File

@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1995, Regents of the University of California
*
* $Id: postgres.h,v 1.61 2002/09/04 20:31:36 momjian Exp $
* $Id: postgres.h,v 1.62 2002/10/18 20:33:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -539,8 +539,8 @@ extern int ExceptionalCondition(char *conditionName, char *errorType,
#define BKI_WITHOUT_OIDS
/* these need to expand into some harmless, repeatable declaration */
#define DATA(x) extern int errno
#define DESCR(x) extern int errno
#define DATA(x) extern int no_such_variable
#define DESCR(x) extern int no_such_variable
#define BKI_BEGIN
#define BKI_END

6
src/pl/plperl/ppport.h
View File

@ -177,11 +177,7 @@ __DATA__
#endif
#ifndef dTHR
#ifdef WIN32
#define dTHR extern int Perl___notused
#else
#define dTHR extern int errno
#endif
#define dTHR extern int no_such_variable
#endif
#ifndef boolSV