1 files changed, 3 insertions, 0 deletions

diff --git a/src/s/cygwin.h b/src/s/cygwin.h
index 9ca5c67ce37..dcab55a91e1 100644
--- a/src/s/cygwin.h
+++ b/src/s/cygwin.h
@@ -132,6 +132,9 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    returns ENOSYS.  A workaround is to set G_SLICE=always-malloc. */
 #define G_SLICE_ALWAYS_MALLOC
 
+/* Send signals to subprocesses by "typing" special chars at them.  */
+#define SIGNALS_VIA_CHARACTERS
+
 /* the end */
 
 /* arch-tag: 5ae7ba00-83b0-4ab3-806a-3e845779191b