ports: Add butterscotch port

ports/butterscotch/build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash ../install.sh
+
+NAME='butterscotch'
+VERSION='git'
+DOWNLOAD_URL="https://github.com/ButterscotchRunner/Butterscotch.git#b95f61c1aa84d9dd4a7b589b2a3331ab28dfa2ea"
+DEPENDENCIES=('SDL2' 'openal-soft')
+
+configure() {
+	cmake --fresh -B build -S . -G Ninja \
+		--toolchain="$BANAN_TOOLCHAIN_DIR/Toolchain.txt" \
+		-DCMAKE_INSTALL_PREFIX=/usr \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DPLATFORM='desktop' \
+		-DAUDIO_BACKEND='openal' \
+		-DDESKTOP_BACKEND='sdl2' \
+		. || exit 1
+}
+
+build() {
+	cmake --build build || exit 1
+}
+
+install() {
+	mkdir -p "$DESTDIR/usr/bin" || exit 1
+	cp -vf build/butterscotch "$DESTDIR/usr/bin/" || exit 1
+}