diff --git a/vars/build.vars b/vars/build.vars
index 9696f98..acc9861 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -15,6 +15,7 @@ ac_cv_func_memcmp_working=yes
 gl_cv_func_gettimeofday_clobber=no
 gl_cv_func_tzset_clobber=no
 gt_cv_int_divbyzero_sigfpe=yes
+libffi_cv_hidden_visibility_attribute=yes
 xorg_cv_malloc0_returns_null=yes"};
 
 #