--- nono/configure.ac	2026/04/29 17:05:11	1.1.1.11
+++ nono/configure.ac	2026/04/29 17:05:18	1.1.1.13
@@ -98,6 +98,7 @@ ADD_CXX_WARN_IF(-Wshadow-local)
 if test x"${cxx_has_Wshadow_local}" != xyes; then
 	ADD_CXX_WARN_IF(-Wshadow)
 fi
+ADD_CXX_WARN_IF(-Wsuggest-override)
 ADD_CXX_WARN_IF(-Wvla-extension)
 AC_SUBST([WARNFLAGS_CXX])
 
@@ -108,7 +109,6 @@ AC_CHECK_HEADERS([bsd/bsd.h])
 AC_CHECK_HEADERS([bsd/stdio.h])
 AC_CHECK_HEADERS([byteswap.h])
 AC_CHECK_HEADERS([endian.h])
-AC_CHECK_HEADERS([histedit.h])
 AC_CHECK_HEADERS([kqueue/sys/event.h])
 AC_CHECK_HEADERS([pthread_np.h])
 AC_CHECK_HEADERS([sys/endian.h])
@@ -615,11 +615,6 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 	]
 )
 
-# libedit (editline)
-if test x"$ac_cv_header_histedit_h" = xyes; then
-	LIBS="${LIBS} -ledit -ltermcap"
-fi
-
 # libkqueue on Linux
 AC_CHECK_LIB(kqueue, kqueue,
 	LIBS="${LIBS} -lkqueue"
@@ -693,7 +688,6 @@ AS_IF([test "x$with_gui" != xno], [
 AC_CONFIG_FILES([Makefile.cfg
 	host/Makefile
 	wx/Makefile
-	util/mkcgrom/Makefile
 	util/viewcgrom/Makefile
 ])
 AC_CONFIG_HEADERS([config-nono.h])