Add initial scripts for lv2, still missing dependencies.

scripts.d/45-lv2.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+LV2_REPO="https://gitlab.com/lv2/lv2.git"
+LV2_COMMIT="ba34a58b32839491335b5bcbda46e11c4b209cbc"
+
+ffbuild_enabled() {
+    return 0
+}
+
+ffbuild_dockerstage() {
+    to_df "ADD $SELF /stage.sh"
+    to_df "RUN run_stage"
+}
+
+ffbuild_dockerbuild() {
+    git-mini-clone "$LV2_REPO" "$LV2_COMMIT" lv2
+    cd lv2
+    git submodule update --init --recursive --depth 1
+
+    local mywaf=(
+        --prefix="$FFBUILD_PREFIX"
+        --no-plugins
+        --no-coverage
+    )
+
+    CC="${FFBUILD_CROSS_PREFIX}gcc" CXX="${FFBUILD_CROSS_PREFIX}g++" ./waf configure "${mywaf[@]}"
+    ./waf -j$(nproc)
+    ./waf install
+
+    cd ..
+    rm -rf lv2
+}