--- a/mailutils-3.5/libmu_auth/Makefile.am	
+++ a/mailutils-3.5/libmu_auth/Makefile.am	
@@ -42,5 +42,5 @@ else
 endif
 
 libmu_auth_la_LIBADD = ${MU_LIB_MAILUTILS} @MU_AUTHLIBS@ @SQLLIB@ @LTLIBINTL@
-libmu_auth_la_LDFLAGS = -version-info @VI_CURRENT@:@VI_REVISION@:@VI_AGE@
+libmu_auth_la_LDFLAGS = -llber -version-info @VI_CURRENT@:@VI_REVISION@:@VI_AGE@
 libmu_auth_la_DEPENDENCIES = @SQLLIB_DEPENDENCY@