media-libs/opencollada: fix build with gcc15/cmake4

Closes: https://bugs.gentoo.org/880407
Signed-off-by: Alexey Sokolov <alexey+gentoo@asokolov.org>
Part-of: https://github.com/gentoo/gentoo/pull/42034
Signed-off-by: Sam James <sam@gentoo.org>

media-libs/opencollada/files/opencollada-1.6.68-cmake4.patch

@@ -0,0 +1,11 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -18,7 +18,7 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+ 	endif()
+ endif()
+ 
+-cmake_minimum_required(VERSION 2.6)
++cmake_minimum_required(VERSION 2.6...4.0)
+ 
+ 
+ #-----------------------------------------------------------------------------

media-libs/opencollada/files/opencollada-1.6.68-unbundle-zlib.patch

@@ -0,0 +1,39 @@
+https://bugs.gentoo.org/880407
+
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -288,7 +288,6 @@ add_subdirectory(common/libftoa)
+ add_subdirectory(${EXTERNAL_LIBRARIES}/UTF)
+ add_subdirectory(common/libBuffer)
+ add_subdirectory(${EXTERNAL_LIBRARIES}/MathMLSolver)
+-add_subdirectory(${EXTERNAL_LIBRARIES}/zlib)
+ 
+ # building OpenCOLLADA libs
+ add_subdirectory(COLLADABaseUtils)
+--- a/DAEValidator/CMakeLists.txt
++++ b/DAEValidator/CMakeLists.txt
+@@ -80,11 +80,8 @@ if (NOT LIBXML2_FOUND)
+ else ()
+     list(APPEND Libraries ${LIBXML2_LIBRARIES})
+ endif ()
+-if (USE_STATIC)
+-        list(APPEND Libraries zlib_static)
+-    else ()
+-        list(APPEND Libraries zlib_shared)
+-    endif ()
++find_package(ZLIB REQUIRED)
++list(APPEND Libraries ZLIB::ZLIB)
+ if (WIN32)
+ 	list(APPEND Libraries ws2_32.lib)
+ endif ()
+@@ -208,10 +205,3 @@ else ()
+     include_directories(${LIBXML2_INCLUDE_DIR})
+ endif ()
+ 
+-# zlib
+-if (USE_STATIC)
+-	add_dependencies(DAEValidatorExecutable zlib_static)
+-else ()
+-	add_dependencies(DAEValidatorExecutable zlib_shared)
+-endif ()
+-include_directories("../Externals/zlib/include")

media-libs/opencollada/opencollada-1.6.68-r2.ebuild

@@ -0,0 +1,85 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake edos2unix flag-o-matic
+
+DESCRIPTION="Stream based read/write library for COLLADA files"
+HOMEPAGE="http://www.opencollada.org/"
+SRC_URI="https://github.com/KhronosGroup/OpenCOLLADA/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/OpenCOLLADA-${PV}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
+IUSE="static-libs"
+
+RDEPEND="
+	dev-libs/libpcre:=
+	dev-libs/libxml2:=
+	dev-libs/zziplib
+	media-libs/lib3ds
+	sys-libs/zlib
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	app-admin/chrpath
+	virtual/pkgconfig
+"
+
+PATCHES=(
+	"${FILESDIR}/${P}-fix-null-conversion.patch"
+	"${FILESDIR}/${P}-cmake-fixes.patch"
+	"${FILESDIR}/${PN}-1.6.63-pcre-fix.patch"
+	"${FILESDIR}/${PN}-1.6.68-gcc13.patch"
+	"${FILESDIR}/${PN}-1.6.68-werror.patch"
+	"${FILESDIR}/${PN}-1.6.68-cmake4.patch"
+	"${FILESDIR}/${PN}-1.6.68-unbundle-zlib.patch"
+)
+
+src_prepare() {
+	edos2unix CMakeLists.txt
+
+	cmake_src_prepare
+
+	# Remove bundled depends that have portage equivalents
+	rm -rv Externals/{expat,lib3ds,LibXML,pcre,zlib,zziplib} || die
+
+	# Remove unused build systems
+	rm -v Makefile scripts/{unixbuild.sh,vcproj2cmake.rb} || die
+	find "${S}" -name SConscript -delete || die
+}
+
+src_configure() {
+	# bug 619670
+	append-cxxflags -std=c++14
+
+	local mycmakeargs=(
+		-DUSE_SHARED=ON
+		-DUSE_STATIC=$(usex static-libs)
+		-DUSE_LIBXML=ON
+	)
+
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+
+	newenvd - 99opencollada <<- _EOF_
+		LDPATH=/usr/$(get_libdir)/opencollada
+	_EOF_
+
+	# Remove insecure DAEValidator RUNPATH and install DAEValidator library
+	dolib.so "${BUILD_DIR}/lib/libDAEValidatorLibrary.so"
+	chrpath -d "${BUILD_DIR}/bin/DAEValidator" || die
+
+	dobin "${BUILD_DIR}/bin/DAEValidator"
+	dobin "${BUILD_DIR}/bin/OpenCOLLADAValidator"
+	# Need to be in same directory as above binaries
+	docinto "/usr/bin"
+	dodoc "${BUILD_DIR}/bin/COLLADAPhysX3Schema.xsd"
+	dodoc "${BUILD_DIR}/bin/collada_schema_1_4_1.xsd"
+	dodoc "${BUILD_DIR}/bin/collada_schema_1_5.xsd"
+}