--- ./Makefile.orig	2017-05-22 16:58:46.000000000 -0500
+++ ./Makefile	2017-07-07 13:28:14.124402827 -0500
@@ -24,8 +24,8 @@
 LOCALEDIR     = $(PREFIX)/share/locale
 BUILDDIR      = $(SRC)
 DESTDIR       = 
-CFLAGS        = -Wall -W -O2
-LDFLAGS       = 
+CFLAGS        = -Wall -W -O2 -DHAVE_LIBIDN2
+LDFLAGS       = -lidn2
 COPTS         = 
 RPM_OPT_FLAGS = 
 LIBS          =