diff --git a/configure b/configure
index 67030adac6..e0e91d9992 100755
--- a/configure
+++ b/configure
@@ -1860,6 +1860,7 @@ _ACEOF
 _ACEOF
 
     DEFAULT_DEFAULT_wxUSE_GTK=1
+    NEEDS_D_REENTRANT_FOR_R_FUNCS=1
   ;;
   *-*-osf* )
     USE_ALPHA=1
diff --git a/configure.in b/configure.in
index b01862c8a0..9cf33de6f1 100644
--- a/configure.in
+++ b/configure.in
@@ -204,6 +204,7 @@ case "${host}" in
     AC_DEFINE(__NETBSD__)
     AC_DEFINE(__BSD__)
     DEFAULT_DEFAULT_wxUSE_GTK=1
+    NEEDS_D_REENTRANT_FOR_R_FUNCS=1
   ;;
   *-*-osf* )
     USE_ALPHA=1