mednafen_gba_libretro: a port of Mednafen GBA (#2359)

to the libretro API

games-emulation/mednafen_gba_libretro/mednafen_gba_libretro-0.9.36_20180104.recipe

@@ -0,0 +1,52 @@
+SUMMARY="A standalone port of Mednafen GBA to libretro"
+DESCRIPTION="This is a standalone port of Mednafen GBA to libretro, a Game Boy \
+Advance emulator. It is itself a fork of VBA-M, itself a fork of Visual Boy \
+Advance."
+HOMEPAGE="https://mednafen.github.io/documentation/gba.html"
+COPYRIGHT="2005-2018 Forgotten, the Mednafen team, the libretro team"
+LICENSE="GNU GPL v2"
+REVISION="1"
+srcGitRev="49358b2cd878f644179913c8b78c5cc9732d0d21"
+SOURCE_URI="https://github.com/libretro/beetle-gba-libretro/archive/$srcGitRev.tar.gz"
+CHECKSUM_SHA256="6ef9e29478b30b18249f3001ca99d4237c86736bda899cc2d720e13b290d3c28"
+SOURCE_FILENAME="libretro-mednafen-gba-${portVersion/_/-}-$srcGitRev.tar.gz"
+SOURCE_DIR="beetle-gba-libretro-$srcGitRev"
+ADDITIONAL_FILES="mednafen_gba_libretro.info.in"
+
+ARCHITECTURES="!x86_gcc2 ?x86 x86_64"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	mednafen_gba_libretro$secondaryArchSuffix = $portVersion
+	addon:mednafen_gba_libretro$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/mednafen_gba_libretro.info.in \
+		> mednafen_gba_libretro.info
+	make $jobArgs
+}
+
+INSTALL()
+{
+	install -m 0755 -d "$docDir"
+	install -m 0644 -t "$docDir" COPYING
+	install -m 0755 -d "$addOnsDir"/libretro
+	install -m 0644 -t "$addOnsDir"/libretro \
+		mednafen_gba_libretro.info \
+		mednafen_gba_libretro.so
+}