Migrate all libs (remove fdk-aac due to license issue and wavpack as no longer supported)

build/freetype2.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -euo pipefail
+
+CONF_FLAGS=(
+  --prefix=$INSTALL_DIR                               # install library in a build directory for FFmpeg to include
+  --host=x86_64-gnu                                   # use i686 linux
+  --enable-shared=no                                  # not to build shared library
+  --without-harfbuzz                                  # disable harfbuzz as incompatible
+)
+emconfigure ./autogen.sh
+emconfigure ./configure "${CONF_FLAGS[@]}"
+# build apinames manually to prevent it built by emcc
+gcc -o objs/apinames src/tools/apinames.c
+emmake make install -j