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Delete vestigial declarations formerly used on 16-bit platforms

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Delete the structure members used in the 16-bit Turbo C memory models.
Delete the PNG_ABORT declaration used in the 16-bit Windows build.

Stop checking macros (e.g. _WINDOWS) predefined by 16-bit Windows
compilers (but do check the __NT__ macro, which was the only one
predefined by ancient Windows NT compilers).
This commit is contained in:
Cosmin Truta
2022-09-14 08:54:57 +03:00
parent 8c542ad9df
commit 9cb84c4cb9
3 changed files with 8 additions and 23 deletions
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6
pngconf.h
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@@ -3,7 +3,7 @@
*
* libpng version 1.6.38.git
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -180,8 +180,8 @@
* compiler-specific macros to the values required to change the calling
* conventions of the various functions.
*/
#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
#if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || \
defined(__CYGWIN__)
/* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
* MinGW on any architecture currently supported by Windows. Also includes
* Watcom builds but these need special treatment because they are not