Force mixer linking

1 files changed, 4 insertions, 1 deletions

diff --git a/downstroke.egg b/downstroke.egg
index e732de8..cfbbc76 100644
--- a/downstroke.egg
+++ b/downstroke.egg
@@ -33,8 +33,11 @@
    (extension downstroke.engine
      (source "engine.scm")
      (component-dependencies downstroke.renderer downstroke.world downstroke.input downstroke.assets downstroke.animation))
+   ;; Link SDL2_mixer explicitly so downstroke.mixer.so lists libSDL2_mixer in
+   ;; DT_NEEDED; otherwise Mix_* symbols can be undefined at dlopen time.
    (extension downstroke.mixer
-     (source "mixer.scm"))
+     (source "mixer.scm")
+     (csc-options "-lSDL2_mixer"))
    (extension downstroke.sound
      (source "sound.scm")
      (component-dependencies downstroke.mixer))