media-libs/libpng: Sync with Gentoo

It's from Gentoo commit 4ec729bc254a08d7e50bc297dba0cd316fd63f80.

sdk_container/src/third_party/portage-stable/media-libs/libpng/Manifest

@@ -2,3 +2,4 @@ DIST libpng-1.6.40-apng-apng.patch.gz 10330 BLAKE2B e2a5ff10ebaf75019d20edb148ea
 DIST libpng-1.6.40-libpng-apng-apng.patch.gz 10815 BLAKE2B 47b09d730d6be1d481ab48e511068a38fc3448339aaeab1d8ad21f26de6cb79006c64785de2e0514ff820a75101c0010b84cce923d10e8f6198e4e99916d08f2 SHA512 373cc9f0df15f7c77c0a59ddaac22374cfae37174b63a642e68e3a17a6d0bb1015399d771998c7eb6b356b634f157f0009743f4cc659f3b8e480a9533010ef9c
 DIST libpng-1.6.40.tar.xz 1021332 BLAKE2B 4dd2df57791ca68cc31ba966b9176ecb37458572c60eef34e31ff0d3266d25ad6ea9d2e8cae6bfaf7932b5c7bc231047d3ed139b3464304c41cc4d89611f5ba8 SHA512 a2ec37c529bf80f3fee3798191d080d06e14d6a1ffecd3c1a02845cb9693b5e308a1d82598a376101f9312d989d19f1fb6735b225d4b0b9f1b73f9f8a3edb17f
 DIST libpng-1.6.41.tar.xz 1035328 BLAKE2B 43d8d1c563d9df46b663f706dca9563e31e6e47a2809a77a5d059de8cfa348721054df724d08ac24ef4717ffc101989941127df2d026c9537532375d9b432b68 SHA512 046d0328255572ee2ccab7e751ed457b07e0aedc72474c2f4675a8303e628de3ef8afa1a00c60d768eb788546d1cda1e8b800b2497d9c352694faba6dde2c5b4
+DIST libpng-1.6.42.tar.xz 1035484 BLAKE2B 8a8895b673ff90416a00c9ff775d7bdc38ab1ab0d83fd6e70cfffea2ed78bd42896950a64bf48ad9a00ea50d8c5d5702975b0bae7bb3300d4de4c82b334e513e SHA512 a9e8641f79ebc811e8e1e94c4966737f8d0f3aef33c86834c419ca76050567891c065899c3bc0c945c59b5d50c5ff7d693cc51089d06efe92e71ae8014fa157c

sdk_container/src/third_party/portage-stable/media-libs/libpng/files/libpng-1.6.41-png_check_sig-abi.patch

@@ -0,0 +1,94 @@
+https://bugs.gentoo.org/923298
+https://github.com/pnggroup/libpng/commit/ac944e2b364cff96e8458110c2ad06a63f8543b3
+
+From ac944e2b364cff96e8458110c2ad06a63f8543b3 Mon Sep 17 00:00:00 2001
+From: Cosmin Truta <ctruta@gmail.com>
+Date: Mon, 29 Jan 2024 15:30:10 +0200
+Subject: [PATCH] Fix a regression introduced in "chore: Clean up the return
+ statements"
+
+This fixes commit 27e548af2518ff8d278b45c40d11ad1bdd68eaa0.
+
+The macro `png_check_sig` has been deprecated and remained untested
+for decades. And yet, somehow it escaped from all past API cleanups.
+
+Also update the libpng manual.
+
+Reported-by: Matthieu Darbois
+--- a/libpng-manual.txt
++++ b/libpng-manual.txt
+@@ -357,7 +357,7 @@ Customizing libpng.
+        return ERROR;
+     }
+ 
+-    is_png = !png_sig_cmp(header, 0, number);
++    is_png = (png_sig_cmp(header, 0, number) == 0);
+     if (!is_png)
+     {
+        return NOT_PNG;
+@@ -4692,7 +4692,7 @@ deprecated since libpng-1.0.16 and libpng-1.2.6.
+ The function
+     png_check_sig(sig, num)
+ was replaced with
+-    !png_sig_cmp(sig, 0, num)
++    png_sig_cmp(sig, 0, num) == 0
+ It has been deprecated since libpng-0.90.
+ 
+ The function
+@@ -4756,8 +4756,8 @@ png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
+ png_set_asm_flags(), and png_mmx_supported()
+ 
+ We removed the obsolete png_check_sig(), png_memcpy_check(), and
+-png_memset_check() functions.  Instead use !png_sig_cmp(), memcpy(),
+-and memset(), respectively.
++png_memset_check() functions.  Instead use png_sig_cmp() == 0,
++memcpy(), and memset(), respectively.
+ 
+ The function png_set_gray_1_2_4_to_8() was removed. It has been
+ deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
+--- a/libpng.3
++++ b/libpng.3
+@@ -876,7 +876,7 @@ Customizing libpng.
+        return ERROR;
+     }
+ 
+-    is_png = !png_sig_cmp(header, 0, number);
++    is_png = (png_sig_cmp(header, 0, number) == 0);
+     if (!is_png)
+     {
+        return NOT_PNG;
+@@ -5211,7 +5211,7 @@ deprecated since libpng-1.0.16 and libpng-1.2.6.
+ The function
+     png_check_sig(sig, num)
+ was replaced with
+-    !png_sig_cmp(sig, 0, num)
++    png_sig_cmp(sig, 0, num) == 0
+ It has been deprecated since libpng-0.90.
+ 
+ The function
+@@ -5275,8 +5275,8 @@ png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
+ png_set_asm_flags(), and png_mmx_supported()
+ 
+ We removed the obsolete png_check_sig(), png_memcpy_check(), and
+-png_memset_check() functions.  Instead use !png_sig_cmp(), memcpy(),
+-and memset(), respectively.
++png_memset_check() functions.  Instead use png_sig_cmp() == 0,
++memcpy(), and memset(), respectively.
+ 
+ The function png_set_gray_1_2_4_to_8() was removed. It has been
+ deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
+--- a/png.h
++++ b/png.h
+@@ -914,9 +914,9 @@ PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
+     size_t num_to_check));
+ 
+ /* Simple signature checking function.  This is the same as calling
+- * png_check_sig(sig, n) := (png_sig_cmp(sig, 0, n) != 0).
++ * png_check_sig(sig, n) := (png_sig_cmp(sig, 0, n) == 0).
+  */
+-#define png_check_sig(sig, n) (png_sig_cmp((sig), 0, (n)) != 0)
++#define png_check_sig(sig, n) (png_sig_cmp((sig), 0, (n)) == 0) /* DEPRECATED */
+ 
+ /* Allocate and initialize png_ptr struct for reading, and any other memory. */
+ PNG_EXPORTA(4, png_structp, png_create_read_struct,
+

sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.41-r1.ebuild

@@ -0,0 +1,74 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit libtool multilib-minimal
+
+APNG_REPO=libpng-apng # sometimes libpng-apng is more up to date
+APNG_VERSION="1.6.40"
+DESCRIPTION="Portable Network Graphics library"
+HOMEPAGE="http://www.libpng.org/"
+SRC_URI="
+	mirror://sourceforge/${PN}/${P}.tar.xz
+	apng? (
+		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+	)
+"
+
+LICENSE="libpng2"
+SLOT="0/16"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="apng cpu_flags_arm_neon cpu_flags_x86_sse static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND=">=sys-libs/zlib-1.2.8-r1:=[${MULTILIB_USEDEP}]"
+DEPEND="${RDEPEND}"
+
+DOCS=( ANNOUNCE CHANGES libpng-manual.txt README TODO )
+
+PATCHES=(
+	"${FILESDIR}"/${P}-png_check_sig-abi.patch
+)
+
+src_prepare() {
+	default
+
+	if use apng; then
+		case ${APNG_REPO} in
+			apng)
+				eapply -p0 "${WORKDIR}"/${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch
+				;;
+			libpng-apng)
+				eapply "${WORKDIR}"/${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch
+				;;
+			*)
+				die "Unknown APNG_REPO!"
+				;;
+		esac
+
+		# Don't execute symbols check with apng patch, bug #378111
+		sed -i -e '/^check/s:scripts/symbols.chk::' Makefile.in || die
+	fi
+
+	elibtoolize
+}
+
+multilib_src_configure() {
+	local myeconfargs=(
+		$(multilib_native_enable tools)
+		$(use_enable test tests)
+		$(use_enable cpu_flags_arm_neon arm-neon)
+		$(use_enable cpu_flags_x86_sse intel-sse)
+		$(use_enable static-libs static)
+	)
+
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+}
+
+multilib_src_install_all() {
+	default
+
+	find "${ED}" \( -type f -o -type l \) -name '*.la' -delete || die
+}