games/libretro-mgba: Added (libretro port of mGBA).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

games/libretro-mgba/README

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+mGBA is a Nintendo Game Boy Advance video game system emulator that can be used
+as a libretro core.
+
+mGBA is a new emulator for running Game Boy Advance games. It aims to be faster
+and more accurate than many existing Game Boy Advance emulators, as well as
+adding features that other emulators lack.
+
+mGBA optionally supports using the following BIOS image file for operation:
+
+* gba_bios.bin (Game Boy Advance Image)
+
+To build the debugging symbols use:
+  DEBUG=1 ./libretro-mgba.SlackBuild

games/libretro-mgba/libretro-mgba.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for libretro-mGBA
+
+# Copyright 2016 Hunter Sezen
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PRGNAM=libretro-mgba
+LIBNAM=mgba_libretro
+VERSION=${VERSION:-2016.05.26_0e19a58}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+# requires patching the Makefile to properly use
+# the default CFLAGS and CXXFLAGS are probably fine
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+DEBUG=${DEBUG:-0}
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+make -f Makefile.libretro DEBUG=$DEBUG
+
+install -Dm0644 $LIBNAM.so $PKG/usr/lib${LIBDIRSUFFIX}/libretro/$LIBNAM.so
+install -Dm0644 $LIBNAM.info $PKG/usr/lib${LIBDIRSUFFIX}/libretro/info/$LIBNAM.info
+
+if [ "${DEBUG:-0}" = "0" ]; then
+  find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+    | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+fi
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a CHANGES LICENSE *.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

games/libretro-mgba/libretro-mgba.info

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+PRGNAM="libretro-mgba"
+VERSION="2016.05.26_0e19a58"
+HOMEPAGE="http://www.libretro.com/"
+DOWNLOAD="http://ks392457.kimsufi.com/orbea/stuff/slackbuilds/src/libretro/libretro-mgba-2016.05.26_0e19a58.tar.xz"
+MD5SUM="ee93de2f02f61c3a4b95358acdc1f848"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="RetroArch"
+MAINTAINER="Hunter Sezen"
+EMAIL="ovariegata@yahoo.com"

games/libretro-mgba/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+             |-----handy-ruler------------------------------------------------------|
+libretro-mgba: libretro-mgba (libretro port of mGBA Game Boy Advance Emulator)
+libretro-mgba:
+libretro-mgba: mGBA is a new emulator for running Game Boy Advance games. It aims
+libretro-mgba: to be faster and more accurate than many existing Game Boy Advance
+libretro-mgba: emulators, as well as adding features that other emulators lack.
+libretro-mgba:
+libretro-mgba: Homepage: http://www.libretro.com/
+libretro-mgba:
+libretro-mgba:
+libretro-mgba:
+libretro-mgba: