opencsg, new recipe, version 1.8.1 (#12008)

media-gfx/opencsg/opencsg-1.8.1.recipe

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+SUMMARY="The CSG rendering library"
+DESCRIPTION="OpenCSG is a library that does image-based CSG rendering using OpenGL. It is \
+written in C++ and supports most modern graphics hardware using Microsoft Windows or the Linux \
+operating system. The current version is OpenCSG-1.8.1.
+
+What is CSG, anyway? CSG is short for Constructive Solid Geometry and denotes an approach to \
+model complex 3D-shapes using simpler ones. I.e., two shapes can be combined by taking the union \
+of them, by intersecting them, or by subtracting one shape of the other. The most basic shapes, \
+which are not result of such a CSG operation, are called primitives. Primitives must be solid, \
+i.e., they must have a clearly defined interior and exterior. By construction, a CSG shape is \
+also solid then.
+
+Image-based CSG rendering (also z-buffer CSG rendering) is a term for algorithms that render CSG \
+shapes without an explicit calculation of the geometric boundary of a CSG shape. Such algorithms \
+use frame-buffer settings of the graphics hardware, e.g., the depth and stencil buffer, to \
+compose CSG shapes. OpenCSG implements a variety of those algorithms, namely the Goldfeather \
+algorithm and the SCS algorithm, both of them in several variants."
+HOMEPAGE="https://www.opencsg.org/"
+COPYRIGHT="2002-2025, Florian Kirsch
+	2002-2005 Hasso-Plattner-Institute Potsdam"
+LICENSE="GNU GPL v2"
+REVISION="1"
+#SOURCE_URI="https://github.com/floriankirsch/OpenCSG/archive/refs/tags/opencsg-1-8-1-release.tar.gz"
+SOURCE_URI="https://www.opencsg.org/OpenCSG-$portVersion.tar.gz"
+CHECKSUM_SHA256="afcc004a89ed3bc478a9e4ba39b20f3d589b24e23e275b7383f91a590d4d57c5"
+SOURCE_DIR="OpenCSG-$portVersion"
+#PATCHES="projectx-$portVersion.patchset"
+
+ARCHITECTURES="all !x86_gcc2"
+SECONDARY_ARCHITECTURES="x86"
+
+libVersion="$portVersion"
+libVersionCompat="$libVersion compat >= ${libVersion%%.*}"
+
+PROVIDES="
+	opencsg$secondaryArchSuffix = $portVersion
+	lib:libopencsg$secondaryArchSuffix = $libVersionCompat
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	lib:libGL$secondaryArchSuffix
+	lib:libGLU$secondaryArchSuffix
+	"
+
+PROVIDES_devel="
+	opencsg${secondaryArchSuffix}_devel = $portVersion
+	devel:libopencsg$secondaryArchSuffix = $libVersionCompat
+	"
+REQUIRES_devel="
+	opencsg$secondaryArchSuffix == $portVersion base
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	devel:libGL$secondaryArchSuffix
+	devel:libGLU$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	cmd:cmake
+	cmd:gcc$secondaryArchSuffix
+	cmd:make
+	cmd:pkg_config$secondaryArchSuffix
+	"
+
+BUILD()
+{
+	cmake -B build -S . -DCMAKE_BUILD_TYPE=Release \
+		$cmakeDirArgs \
+		-DBUILD_EXAMPLE=OFF
+
+	make -C build $jobArgs
+}
+
+INSTALL()
+{
+	make -C build install
+
+	prepareInstalledDevelLib \
+		libopencsg
+
+	packageEntries devel \
+		"$developDir"
+}
+
+TEST()
+{
+	make check
+}