o2em_libretro: a port of O2EM to the libretro API (#2463)

games-emulation/o2em_libretro/o2em_libretro-1.18_20180409.recipe

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+SUMMARY="An Odyssey 2 / VideoPac emulator using the libretro API"
+DESCRIPTION="This is the libretro port of O2EM, a Magnavox Odyssey 2 and \
+Philips VideoPac emulator. These machines shared the same hardware and were \
+rebranded depending on the market where they were sold."
+HOMEPAGE="http://o2em.sourceforge.net/"
+COPYRIGHT="1996-2018 Daniel Boris, the O2EM team, the libretro team"
+LICENSE="Artistic"
+REVISION="1"
+srcGitRev="bdfb4000122bb32b9cabf46ffdaa4bcbc55f686b"
+SOURCE_URI="https://github.com/libretro/libretro-o2em/archive/$srcGitRev.tar.gz"
+CHECKSUM_SHA256="ba62271504351539087dcdda0e8c7834615ee7121e56aadb86633ea552d10e6c"
+SOURCE_FILENAME="libretro-o2em-${portVersion/_/-}-$srcGitRev.tar.gz"
+SOURCE_DIR="libretro-o2em-$srcGitRev"
+ADDITIONAL_FILES="o2em_libretro.info.in"
+
+ARCHITECTURES="!x86_gcc2 ?x86 x86_64"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	o2em_libretro$secondaryArchSuffix = $portVersion
+	addon:o2em_libretro$secondaryArchSuffix = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	retroarch$secondaryArchSuffix
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc$secondaryArchSuffix
+	cmd:make
+	"
+
+BUILD()
+{
+	sed -e "s/@DISPLAY_VERSION@/v${portVersion/_/-}/" \
+		$portDir/additional-files/o2em_libretro.info.in \
+		> o2em_libretro.info
+	make $jobArgs
+}
+
+INSTALL()
+{
+	install -m 0755 -d "$docDir"
+	install -m 0644 -t "$docDir" README.md
+	install -m 0755 -d "$addOnsDir"/libretro
+	install -m 0644 -t "$addOnsDir"/libretro \
+		o2em_libretro.info \
+		o2em_libretro.so
+}