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Add PNG_SKIP_SETJMP_CHECK macro

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Glenn Randers-Pehrson 2009-04-20 13:07:01 -05:00
parent d07e9b03c4
commit 92d0fe938f
3 changed files with 28 additions and 15 deletions
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4
ANNOUNCE
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@ -86,7 +86,9 @@ version 1.2.36beta04 [April 5, 2009]
Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
version 1.2.36beta05 [April 13, 2009]
None.
Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
application code writers to bypass the check for multiple inclusion
of setjmp.h when they know that it is safe to ignore the situation.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

5
CHANGES
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@ -2353,7 +2353,10 @@ version 1.2.36beta04 [April 5, 2009]
Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
version 1.2.36beta05 [April 13, 2009]
None.
Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
application code writers to bypass the check for multiple inclusion
of setjmp.h when they know that it is safe to ignore the situation.
Made some cosmetic changes to whitespace in pngtest output.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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10
pngconf.h
View File

@ -314,8 +314,15 @@
#ifdef PNG_SETJMP_SUPPORTED
/* This is an attempt to force a single setjmp behaviour on Linux. If
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
*
* You can bypass this test if you know that your application uses exactly
* the same setjmp.h that was included when libpng was built. Only define
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
* while building a separate libpng library for general use.
*/
# ifndef PNG_SKIP_SETJMP_CHECK
# ifdef __linux__
# ifdef _BSD_SOURCE
# define PNG_SAVE_BSD_SOURCE
@ -325,10 +332,11 @@
/* If you encounter a compiler error here, see the explanation
* near the end of INSTALL.
*/
__pngconf.h__ already includes setjmp.h;
__pngconf.h__ in libpng already includes setjmp.h;
__dont__ include it again.;
# endif
# endif /* __linux__ */
# endif /* PNG_SKIP_SETJMP_CHECK */
/* include setjmp.h for error handling */
# include <setjmp.h>