[retro-gtk] meson: Actually use the 'm' dependency

[Adrien Plazas <aplazas src gnome org>]

commit c8534cc75fea476189ebec3a02b41f2cc7c3225b
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Jan 16 22:01:02 2020 +0500

    meson: Actually use the 'm' dependency

 retro-gtk/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/retro-gtk/meson.build b/retro-gtk/meson.build
index 28229f8..2db7991 100644
--- a/retro-gtk/meson.build
+++ b/retro-gtk/meson.build
@@ -97,6 +97,7 @@ retro_gtk_deps = [
   gobject,
   gtk,
   libpulse_simple,
+  m,
 ]
 
 retro_gtk_lib = shared_library(