ms_gsl, new package (requirement for mixxx) (#12960)

dev-cpp/ms-gsl/ms_gsl-4.2.0.recipe

@@ -0,0 +1,49 @@
+SUMMARY="Guideline Support Library implementation by Microsoft"
+DESCRIPTION="The Guidelines Support Library (GSL) contains functions and types that are suggested \
+for use by the C++ Core Guidelines (https://github.com/isocpp/CppCoreGuidelines) maintained by \
+the Standard C++ Foundation (https://isocpp.org)."
+HOMEPAGE="https://github.com/Microsoft/GSL"
+COPYRIGHT="2015 Microsoft Corporation."
+LICENSE="MIT"
+REVISION="1"
+SOURCE_URI="https://github.com/microsoft/GSL/archive/refs/tags/v$portVersion.tar.gz"
+CHECKSUM_SHA256="2c717545a073649126cb99ebd493fa2ae23120077968795d2c69cbab821e4ac6"
+SOURCE_DIR="GSL-$portVersion"
+
+ARCHITECTURES="any"
+
+PROVIDES="
+	ms_gsl = $portVersion
+	devel:ms_gsl = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:cmake
+	cmd:gcc
+	cmd:make
+	"
+
+BUILD()
+{
+	cmake -B build -S . -DCMAKE_BUILD_TYPE=Release \
+		$cmakeDirArgs \
+		-DGSL_TEST=OFF
+
+	make -C build $jobArgs
+}
+
+INSTALL()
+{
+	make -C build install
+}
+
+TEST()
+{
+	make -C build test
+}