development/mtasc: Added (free ActionScript 2 compiler)

I did quite a bit of tweaking on this one before merging
it, primarily putting it in its own subdirectory of /opt,
so if it doesn't work, you should probably blame me as
opposed to the submitter/maintainer.

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

development/mtasc/README

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+MTASC is an free software ActionScript 2.0 compiler developed by Motion-Twin 
+Technologies.  Motion-Twin no longer releases updates to MTASC though. 
+This project is a community fork of MTASC with new improvements.

development/mtasc/mtasc.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for MTASC
+
+# Written by Andres Fuentes (rafu@riseup.net)
+# This script is public domain
+
+# Modified by Robby Workman <rworkman@slackbuilds.org>
+
+PRGNAM=mtasc
+VERSION=${VERSION:-1.15}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}	
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i486 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}	
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i486" ]; then
+  SRCTAR="$PRGNAM-$VERSION-linux.tgz"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SRCTAR="$PRGNAM-$VERSION-linux-$ARCH.tgz"
+  LIBDIRSUFFIX="64"
+else
+  printf "\n$ARCH is not supported.\n\n" ; exit 1
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $PKG/opt/$PRGNAM $OUTPUT
+tar xvf $CWD/$SRCTAR -C $PKG/opt/$PRGNAM
+
+chown -R root:root $PKG
+find $PKG \
+ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+ -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+ -exec chmod 644 {} \;
+
+mkdir -p $PKG/etc/profile.d/
+cat << EOF > $PKG/etc/profile.d/mtasc.sh
+#!/bin/sh
+export PATH="\${PATH}:/opt/mtasc"
+EOF
+cat << EOF > $PKG/etc/profile.d/mtasc.csh
+#!/bin/csh
+setenv PATH \${PATH}:/opt/mtasc
+EOF
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+mv $PKG/opt/$PRGNAM/*.txt $PKG/usr/doc/$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}

development/mtasc/mtasc.info

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+PRGNAM="mtasc"
+VERSION="1.15"
+HOMEPAGE="http://mtasc.sourceforge.net/"
+DOWNLOAD="http://downloads.sourceforge.net/project/mtasc/mtasc-1.15-linux.tgz"
+MD5SUM="e27c3391d679d1be4d1f914ee1da69b7"
+DOWNLOAD_x86_64="http://downloads.sourceforge.net/project/mtasc/mtasc-1.15-linux-x86_64.tgz"
+MD5SUM_x86_64="bf1390e5e8c3d00b4c0dc10937fb29c9"
+MAINTAINER="Andres Fuentes"
+EMAIL="rafu@riseup.net"
+APPROVED="rworkman"

development/mtasc/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 ':'.
+
+     |-----handy-ruler------------------------------------------------------|
+mtasc: MTASC (Free software ActionScript 2 compiler)
+mtasc:
+mtasc: MTASC is the first ActionScript 2 free software compiler.  It can 
+mtasc: compile a large number of .as class files in a very short time and 
+mtasc: generate directly the corresponding SWF bytecode without relying on 
+mtasc: Macromedia Flash or other.
+mtasc:
+mtasc: This version is a community fork of MTASC.
+mtasc:
+mtasc: Homepage: http://mtasc.sourceforge.net/ 
+mtasc: