Add comments in scripts

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "third_party/WavPack"]
 	path = third_party/WavPack
 	url = https://github.com/ffmpegwasm/WavPack
+[submodule "third_party/lame"]
+	path = third_party/lame
+	url = https://github.com/ffmpegwasm/lame

lame @ 2badea19

+Subproject commit 2badea1974ae36cb8312afe99cff1e6b3b5decee

wasm/build-scripts/build-wavpack.sh

@@ -7,13 +7,13 @@ LIB_PATH=third_party/WavPack
 FLAGS="-s USE_PTHREADS=1 $OPTIM_FLAGS"
 CONF_FLAGS=(
   --prefix=$BUILD_DIR                                  # install library in a build directory for FFmpeg to include
-  --host=x86-linux-gnu
+  --host=x86-linux-gnu                                 # use x86 linux as host
   --disable-asm                                        # disable asm optimization
-  --disable-man
-  --disable-tests
-  --disable-apps
-  --disable-dsd
-  --enable-legacy
+  --disable-man                                        # disable docs
+  --disable-tests                                      # disable tests
+  --disable-apps                                       # disable wavpack apps
+  --disable-dsd                                        # disalbe legacy
+  --enable-legacy                                      # enable compability for old version of wav
   --disable-shared                                     # enable building static library
 )
 echo "CONF_FLAGS=${CONF_FLAGS[@]}"

wasm/build-scripts/install-deps.sh

@@ -2,6 +2,7 @@
 
 cmds=()
 
+# Detect what dependencies are missing.
 for cmd in autoconf automake libtool
 do
   if ! command -v $cmd &> /dev/null
@@ -10,6 +11,7 @@ do
   fi
 done
 
+# Install missing dependencies
 if [ ${#cmds[@]} -ne 0 ];
 then
   if [[ "$OSTYPE" == "linux-gnu"* ]]; then