Ports: Switch to new ports system (#594)

Much redundancy is removed from package scripts with this system.
It also supports simple dependency management, uninstalling (through
BSD ports style plist files), cleaning up after itself (with clean,
clean_dist, clean_all commands), etc.

Ports/gcc/package.sh

@@ -0,0 +1,27 @@
+#!/bin/bash ../.port_include.sh
+port=gcc
+version=8.3.0
+useconfigure=true
+configopts="--target=i686-pc-serenity --with-sysroot=/ --with-build-sysroot=$SERENITY_ROOT/Root --with-newlib --enable-languages=c,c++ --disable-lto --disable-nls"
+files="https://ftp.gnu.org/gnu/gcc/gcc-8.3.0/gcc-8.3.0.tar.xz gcc-8.3.0.tar.xz"
+makeopts="all-gcc all-target-libgcc all-target-libstdc++-v3"
+installopts="DESTDIR=$SERENITY_ROOT/Root install-gcc install-target-libgcc install-target-libstdc++-v3"
+depends="binutils"
+
+fetch() {
+    read url filename <<< $(echo "$files")    
+    run_nocd curl -O "$url" -o "$filename"
+    run_nocd tar xf "$filename"
+    run contrib/download_prerequisites
+    for f in patches/*; do
+        run patch -p1 < "$f"
+    done
+}
+build() {
+    run make $makeopts
+    run find ./host-i686-pc-serenity/gcc/ -maxdepth 1 -type f -executable -exec strip --strip-debug {} \; || echo
+}
+
+install() {
+    run make $installopts
+}