media-gfx/opencsg: drop dependency on Qt 5

Signed-off-by: Chris Mayo <aklhfex@gmail.com>
Closes: https://github.com/gentoo/gentoo/pull/35935
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

media-gfx/opencsg/files/opencsg-1.6.0-cmake.patch

@@ -0,0 +1,61 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+new file mode 100644
+index 0000000..0ba23fe
+--- /dev/null
++++ b/CMakeLists.txt
+@@ -0,0 +1,12 @@
++cmake_minimum_required(VERSION 3.16)
++project(opencsg VERSION 1.6.0 LANGUAGES CXX)
++
++option(BUILD_EXAMPLE "Build example program" ON)
++option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
++
++include(GNUInstallDirs)
++
++add_subdirectory(src)
++if(BUILD_EXAMPLE)
++    add_subdirectory(example)
++endif()
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+new file mode 100644
+index 0000000..323a491
+--- /dev/null
++++ b/src/CMakeLists.txt
+@@ -0,0 +1,37 @@
++add_library(opencsg
++    area.cpp area.h
++    batch.cpp batch.h
++    channelManager.cpp channelManager.h
++    context.cpp context.h
++    frameBufferObject.cpp frameBufferObject.h
++    frameBufferObjectExt.cpp frameBufferObjectExt.h
++    glad/include/KHR/khrplatform.h
++    glad/include/glad/gl.h
++    glad/src/gl.cpp
++    occlusionQuery.cpp occlusionQuery.h
++    offscreenBuffer.h
++    opencsgConfig.h
++    opencsgRender.cpp opencsgRender.h
++    openglExt.h
++    openglHelper.cpp openglHelper.h
++    primitive.cpp
++    primitiveHelper.cpp primitiveHelper.h
++    renderGoldfeather.cpp
++    renderSCS.cpp
++    scissorMemo.cpp scissorMemo.h
++    settings.cpp settings.h
++)
++target_include_directories(opencsg PUBLIC
++    ${CMAKE_SOURCE_DIR}/include
++)
++
++set_target_properties(opencsg PROPERTIES
++    VERSION ${PROJECT_VERSION}
++    SOVERSION ${PROJECT_VERSION_MAJOR}
++    PUBLIC_HEADER ${CMAKE_SOURCE_DIR}/include/opencsg.h
++)
++
++install(TARGETS opencsg
++    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
++)

media-gfx/opencsg/opencsg-1.6.0-r1.ebuild

@@ -0,0 +1,36 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+MY_P="OpenCSG-${PV}"
+
+DESCRIPTION="The Constructive Solid Geometry rendering library"
+HOMEPAGE="https://www.opencsg.org"
+SRC_URI="https://www.opencsg.org/${MY_P}.tar.gz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="GPL-2+"
+SLOT="0/1.6"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
+IUSE="doc"
+RESTRICT="test"
+
+DOCS=( build.txt changelog.txt )
+
+PATCHES=( "${FILESDIR}"/${PN}-1.6.0-cmake.patch )
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_EXAMPLE=OFF
+	)
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	use doc && local HTML_DOCS=( doc/. )
+	einstalldocs
+}