stella_libretro: an Atari VCS emulator libretro core (#2684)

games-emulation/stella_libretro/additional-files/stella_libretro.info.in

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+display_name = "Atari - 2600 (Stella)"
+authors = "Stephen Anthony|Bradford Mott|Eckhard Stolberg|Brian Watson"
+supported_extensions = "a26|bin"
+corename = "Stella"
+manufacturer = "Atari"
+categories = "Emulator"
+systemname = "Atari 2600"
+database = "Atari - 2600"
+license = "GPLv2"
+permissions = ""
+display_version = "@DISPLAY_VERSION@"
+supports_no_game = "false"

games-emulation/stella_libretro/stella_libretro-3.9.3_20180411.recipe

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+SUMMARY="A port of Stella, an Atari 2600 VCS emulator to the libretro API"
+DESCRIPTION="Stella is a multi-platform Atari 2600 VCS emulator originally \
+developed for Linux by Bradford W. Mott, and currently maintained by Stephen \
+Anthony. The Atari 2600 Video Computer System (VCS), introduced in 1977, was \
+the most popular home video game system of the early 1980's.  Now you can \
+enjoy all of your favorite Atari 2600 games on your PC thanks to Stella."
+HOMEPAGE="https://stella-emu.github.io/"
+COPYRIGHT="1995-2018 the Stella team, the libretro team"
+LICENSE="GNU GPL v2"
+REVISION="1"
+srcGitRev="b0d525b724fa0a9a313e2ea33a590aba98deaabf"
+SOURCE_URI="https://github.com/libretro/stella-libretro/archive/$srcGitRev.tar.gz"
+CHECKSUM_SHA256="72f6d611bc51de9da1bd86fb922019d29eb0f30f53386f27e1a404a26736ba1f"
+SOURCE_FILENAME="stella-libretro-${portVersion/_/-}-$srcGitRev.tar.gz"
+SOURCE_DIR="stella-libretro-$srcGitRev"
+ADDITIONAL_FILES="stella_libretro.info.in"
+
+ARCHITECTURES="!x86_gcc2 ?x86 x86_64"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	stella_libretro$secondaryArchSuffix = $portVersion
+	addon:stella_libretro$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/stella_libretro.info.in \
+		> stella_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 \
+		stella_libretro.info \
+		stella_libretro.so
+}