diff --git a/pkgdef/SDL2_mixer.sh b/pkgdef/SDL2_mixer.sh
index fdb7482..9f20837 100644
--- a/pkgdef/SDL2_mixer.sh
+++ b/pkgdef/SDL2_mixer.sh
@@ -17,4 +17,11 @@ if ! chocpkg installed libogg; then
     config_options+=" --disable-music-ogg"
 fi
 
+# FluidSynth, if we have it.
+if chocpkg installed fluidsynth; then
+    config_options+=" --enable-music-midi-fluidsynth"
+else
+    config_options+=" --disable-music-midi-fluidsynth"
+fi
+
 build_autotools $config_options
diff --git a/pkgdef/fluidsynth.sh b/pkgdef/fluidsynth.sh
new file mode 100644
index 0000000..a1815da
--- /dev/null
+++ b/pkgdef/fluidsynth.sh
@@ -0,0 +1,5 @@
+description "Real-time sound font software synthesizer"
+check_pkgconfig fluidsynth
+fetch_download http://www.chocolate-doom.org/depends/fluidsynth-1.1.6.tar.gz
+dependencies glib
+build_autotools
diff --git a/pkgdef/gettext.sh b/pkgdef/gettext.sh
new file mode 100644
index 0000000..ac67f1d
--- /dev/null
+++ b/pkgdef/gettext.sh
@@ -0,0 +1,4 @@
+description "gettext localization library"
+check_tool gettext
+fetch_download https://ftp.gnu.org/pub/gnu/gettext/gettext-0.19.7.tar.gz
+build_autotools --disable-java
diff --git a/pkgdef/glib.sh b/pkgdef/glib.sh
new file mode 100644
index 0000000..b0a6036
--- /dev/null
+++ b/pkgdef/glib.sh
@@ -0,0 +1,5 @@
+description "GNOME glib core utility library"
+check_pkgconfig glib
+fetch_download http://www.chocolate-doom.org/depends/glib-2.47.6.tar.gz
+dependencies libffi gettext zlib
+build_autotools --with-pcre=internal
diff --git a/pkgdef/libffi.sh b/pkgdef/libffi.sh
new file mode 100644
index 0000000..a32867d
--- /dev/null
+++ b/pkgdef/libffi.sh
@@ -0,0 +1,4 @@
+description "Foreign function interface library"
+check_pkgconfig libffi
+fetch_download https://www.mirrorservice.org/sites/sourceware.org/pub/libffi/libffi-3.2.tar.gz
+build_autotools