Reworking the toolchain

We need to make a cross compiler first before then targeting the actual
toolchain

scripts/musl-cross.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+set -eu
+
+ARCH=$(uname -m)
+FROOT="../$ARCH-musllvm" # make install in source dir
+MUSL_TAR=$(ls ./sources/musl-*.tar.* 2>/dev/null | head -n 1 | xargs basename)
+if [ -z "$MUSL_TAR" ]; then
+        echo "ERR: No Musl tarball found in sources directory"
+        exit 1
+fi
+MUSL_SOURCE="${MUSL_TAR%%.tar.*}"
+
+if command -v "clang" >/dev/null 2>&1 && command -v "lld" >/dev/null 2>&1; then
+        export CC="clang"
+else
+        export CC="cc"
+fi
+
+if [ ! -d ./build/"MUSL_SOURCE" ]; then
+        echo "Extracting Musl tarball to ./build/"
+        tar -xpf ./sources/"$MUSL_TAR" -C ./build
+else
+        echo "Musl source already extracted."
+fi
+
+echo "Buliding musl headers"
+if [ -f "./build/$MUSL_SOURCE" ]; then
+        echo "Musl headers already built, skipping..."
+        exit
+fi
+
+cd ./build/"$MUSL_SOURCE"
+
+echo "Installing musl headers..."
+DESTDIR=$FROOT make ARCH=$(uname -m) install-headers