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
+}

ports/butterscotch/patches/0001-include-alloca.h.patch

@@ -0,0 +1,41 @@
+From 1ae068333558eec65a11e575d3c08111efd85938 Mon Sep 17 00:00:00 2001
+From: Oskari Alaranta <oskari.alaranta@bananymous.com>
+Date: Mon, 22 Jun 2026 21:21:36 +0300
+Subject: [PATCH] include alloca.h
+
+---
+ src/runner.c                   | 4 ++++
+ vendor/stb/vorbis/stb_vorbis.c | 2 +-
+ 2 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/src/runner.c b/src/runner.c
+index 411ccf5..24110c1 100644
+--- a/src/runner.c
++++ b/src/runner.c
+@@ -17,6 +17,10 @@
+ #include "gettime.h"
+ #include "stb_ds.h"
+ 
++#ifdef __banan_os__
++#include <alloca.h>
++#endif
++
+ // ===[ Runtime Layer Teardown Helpers ]===
+ void Runner_freeRuntimeLayer(RuntimeLayer* runtimeLayer) {
+     free(runtimeLayer->dynamicName);
+diff --git a/vendor/stb/vorbis/stb_vorbis.c b/vendor/stb/vorbis/stb_vorbis.c
+index 0af6406..d35822e 100644
+--- a/vendor/stb/vorbis/stb_vorbis.c
++++ b/vendor/stb/vorbis/stb_vorbis.c
+@@ -588,7 +588,7 @@ enum STBVorbisError
+    #if defined(_MSC_VER) || defined(__MINGW32__)
+       #include <malloc.h>
+    #endif
+-   #if defined(__linux__) || defined(__linux) || defined(__sun__) || defined(__EMSCRIPTEN__) || defined(__NEWLIB__)
++   #if defined(__linux__) || defined(__linux) || defined(__sun__) || defined(__EMSCRIPTEN__) || defined(__NEWLIB__) || defined(__banan_os__)
+       #include <alloca.h>
+    #endif
+ #else // STB_VORBIS_NO_CRT
+-- 
+2.54.0
+

ports/butterscotch/patches/0002-fix-maybe-used-uninitialized-error.patch

@@ -0,0 +1,25 @@
+From 98fffc5330e51a0dbe25017653d46e15c185dc4b Mon Sep 17 00:00:00 2001
+From: Oskari Alaranta <oskari.alaranta@bananymous.com>
+Date: Mon, 22 Jun 2026 21:24:07 +0300
+Subject: [PATCH] fix maybe used uninitialized error
+
+---
+ src/desktop/backends/sdl2.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/desktop/backends/sdl2.c b/src/desktop/backends/sdl2.c
+index 91029a6..34716f8 100644
+--- a/src/desktop/backends/sdl2.c
++++ b/src/desktop/backends/sdl2.c
+@@ -50,7 +50,7 @@ bool platformGetScaledWindowSize(int32_t* outW, int32_t* outH) {
+ 
+ static void platformGetWindowScale(float *scale_x, float *scale_y) {
+     if (!scale_x || !scale_y) return;
+-    int32_t draw_w, draw_h;
++    int32_t draw_w = 0, draw_h = 0;
+     int logical_w, logical_h;
+     platformGetWindowSize(&draw_w, &draw_h);
+     SDL_GetWindowSize(window, &logical_w, &logical_h);
+-- 
+2.54.0
+