add ci for miniaudio

.ci/build-opus.sh

+#!/bin/sh
+set -x
+set -o errexit
+
+cd miniaudio
+
+external_built_dir="$PWD/external-built"
+
+build_single_thing() {
+  lib_name="$1"
+  cd "external/$lib_name"
+  shift
+  PKG_CONFIG_PATH="$external_built_dir/lib/pkgconfig" ./configure --prefix="$external_built_dir" --enable-static=yes --enable-shared=no "$@"
+  make -j$(nproc)
+  make install
+  cd ../..
+}
+
+build_single_thing ogg
+build_single_thing opus
+build_single_thing opusfile --disable-examples --disable-http
+build_single_thing vorbis --with-ogg="$external_built_dir"
+
+cd ..

.ci/exec-macos-platform.sh

@@ -8,8 +8,15 @@ export EVENT_INCLUDE_DIR=$PWD/libevent-stable/include
 export EVENT_LIB_DIR=$PWD/libevent-stable/lib
 export IRRLICHT_INCLUDE_DIR=$PWD/irrlicht/include
 export IRRLICHT_LIB_DIR=$PWD/irrlicht/lib/$(arch)
+export OPUS_INCLUDE_DIR=$PWD/miniaudio/external-built/include/opus
+export OPUS_LIB_DIR=$PWD/miniaudio/external-built/lib
+export VORBIS_INCLUDE_DIR=$PWD/miniaudio/external-built/include
+export VORBIS_LIB_DIR=$PWD/miniaudio/external-built/lib
+export OGG_INCLUDE_DIR=$PWD/miniaudio/external-built/include
+export OGG_LIB_DIR=$PWD/miniaudio/external-built/lib
 
 ./.ci/libevent-prebuild.sh
+./.ci/build-opus.sh
 
 ./premake5 gmake --cc=clang --build-freetype --build-sqlite
 

.ci/prepare-miniaudio.sh

+#!/bin/sh
+set -x
+set -o errexit
+
+if [ ! -d "miniaudio" ]; then
+  git clone --depth=1 --branch 0.11.22 https://github.com/mackron/miniaudio
+fi
+
+mkdir -p miniaudio/external
+
+install_external() {
+  dir="$1"
+  url="$2"
+  if [ ! -d "miniaudio/external/$dir" ]; then
+    mkdir -p "miniaudio/external/$dir"
+    # Download the external library and strip one level of directories from the archive
+    wget -O - "$url" | tar --strip-components=1 -C "miniaudio/external/$dir" -zxf -
+  fi
+}
+
+install_external "ogg" "https://github.com/xiph/ogg/releases/download/v1.3.5/libogg-1.3.5.tar.gz"
+install_external "opus" "https://github.com/xiph/opus/releases/download/v1.5.2/opus-1.5.2.tar.gz"
+install_external "opusfile" "https://github.com/xiph/opusfile/releases/download/v0.12/opusfile-0.12.tar.gz"
+install_external "vorbis" "https://github.com/xiph/vorbis/releases/download/v1.3.7/libvorbis-1.3.7.tar.gz"