Here is an update to png 1.6.43.


Version 1.6.43 [February 23, 2024]
  Fixed the row width check in png_check_IHDR().
    This corrected a bug that was specific to the 16-bit platforms,
    and removed a spurious compiler warning from the 64-bit builds.
    (Reported by Jacek Caban; fixed by John Bowler)
  Added eXIf chunk support to the push-mode reader in pngpread.c.
    (Contributed by Chris Blume)
  Added contrib/pngexif for the benefit of the users who would like
    to inspect the content of eXIf chunks.
  Added contrib/conftest/basic.dfa, a basic build-time configuration.
    (Contributed by John Bowler)
  Fixed a preprocessor condition in pngread.c that broke build-time
    configurations like contrib/conftest/pngcp.dfa.
    (Contributed by John Bowler)
  Added CMake build support for LoongArch LSX.
    (Contributed by GuXiWei)
  Fixed a CMake build error that occurred under a peculiar state of the
    dependency tree. This was a regression introduced in libpng-1.6.41.
    (Contributed by Dan Rosser)
  Marked the installed libpng headers as system headers in CMake.
    (Contributed by Benjamin Buch)
  Updated the build support for RISCOS.
    (Contributed by Cameron Cawley)
  Updated the makefiles to allow cross-platform builds to initialize
    conventional make variables like AR and ARFLAGS.
  Added various improvements to the CI scripts in areas like version
    consistency verification and text linting.
  Added version consistency verification to pngtest.c also.


Index: Makefile
===================================================================
RCS file: /cvs/ports/graphics/png/Makefile,v
retrieving revision 1.133
diff -u -p -u -p -r1.133 Makefile
--- Makefile	13 Feb 2024 14:44:16 -0000	1.133
+++ Makefile	25 Feb 2024 03:41:18 -0000
@@ -1,6 +1,6 @@
 COMMENT=	library for manipulating PNG images
 
-VERSION=	1.6.42
+VERSION=	1.6.43
 DISTNAME=	libpng-${VERSION}
 PKGNAME=	png-${VERSION}
 CATEGORIES=	graphics
Index: distinfo
===================================================================
RCS file: /cvs/ports/graphics/png/distinfo,v
retrieving revision 1.64
diff -u -p -u -p -r1.64 distinfo
--- distinfo	13 Feb 2024 14:44:16 -0000	1.64
+++ distinfo	25 Feb 2024 03:41:18 -0000
@@ -1,2 +1,2 @@
-SHA256 (libpng-1.6.42.tar.xz) = yRnbwR9MA7Bauj+IhNjret/jVyrSKK+XK7YAV720hFA=
-SIZE (libpng-1.6.42.tar.xz) = 1035484
+SHA256 (libpng-1.6.43.tar.xz) = alygZSOSotfJ2yrltAIQhDwLvAgcvUEIJasAzFnxSmw=
+SIZE (libpng-1.6.43.tar.xz) = 1044076