diff -up enlightenment-0.23.1/src/modules/mixer/lib/emix.c.gcc10 enlightenment-0.23.1/src/modules/mixer/lib/emix.c
--- enlightenment-0.23.1/src/modules/mixer/lib/emix.c.gcc10	2020-01-31 08:06:59.963675596 -0500
+++ enlightenment-0.23.1/src/modules/mixer/lib/emix.c	2020-01-31 08:07:14.336385244 -0500
@@ -6,11 +6,11 @@
 
 #ifdef HAVE_PULSE
 E_API Emix_Backend *emix_backend_pulse_get(void);
-E_API const char    *emix_backend_pulse_name;
+extern E_API const char    *emix_backend_pulse_name;
 #endif
 #ifdef HAVE_ALSA
 E_API Emix_Backend *emix_backend_alsa_get(void);
-E_API const char    *emix_backend_alsa_name;
+extern E_API const char    *emix_backend_alsa_name;
 #endif
 
 static int _log_domain;