Have 'send-message' look up 'mu-debug' & co. in the right
module: <https://issues.guix.gnu.org/49968>.

Submitted: https://lists.gnu.org/archive/html/bug-mailutils/2021-09/msg00000.html

---
 include/mailutils/guile.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/mailutils/guile.h b/include/mailutils/guile.h
index f05550678..47f89db39 100644
--- a/include/mailutils/guile.h
+++ b/include/mailutils/guile.h
@@ -20,7 +20,8 @@
 
 #include <libguile.h>
 
-#define MU_SCM_SYMBOL_VALUE(p) SCM_VARIABLE_REF(scm_c_lookup(p))
+#define MU_SCM_SYMBOL_VALUE(p)			\
+  (scm_c_public_ref ("mailutils mailutils", p))
 
 typedef struct
 {
-- 
2.33.0