--- nono/configure.ac	2026/04/29 17:04:48	1.1.1.6
+++ nono/configure.ac	2026/04/29 17:04:51	1.1.1.7
@@ -60,7 +60,6 @@ AC_DEFUN([ADD_CC_WARN_IF],[
 	CFLAGS="${old_CFLAGS}"
 ])
 ADD_CC_WARN_IF(-Wcast-qual)
-ADD_CC_WARN_IF(-Wdisabled-macro-expansion)
 ADD_CC_WARN_IF(-Wextra-semi)
 ADD_CC_WARN_IF(-Wlogical-op)
 ADD_CC_WARN_IF(-Wmissing-prototypes)
@@ -82,7 +81,6 @@ AC_DEFUN([ADD_CXX_WARN_IF],[
 	CXXFLAGS="${old_CXXFLAGS}"
 ])
 ADD_CXX_WARN_IF(-Wcast-qual)
-ADD_CXX_WARN_IF(-Wdisabled-macro-expansion)
 ADD_CXX_WARN_IF(-Wextra-semi)
 ADD_CXX_WARN_IF(-Winconsistent-missing-override)
 ADD_CXX_WARN_IF(-Winconsistent-missing-destructor-override)
@@ -111,7 +109,7 @@ case "${host_os}" in
  linux*)
 	if test "$ac_cv_header_kqueue_sys_event_h" != "yes"; then
 		AC_MSG_ERROR([*** kqueue is not found.
-		On Ubuntu, sudo apt install libkqueue-dev])
+*** If you use Ubuntu, sudo apt install libkqueue-dev])
 	fi
 	;;
 esac
@@ -430,7 +428,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 	])],
 	# nothing to do on success
 	, [AC_MSG_ERROR([*** getprogname is not found.
-	On Ubuntu, sudo apt install libbsd-dev])
+*** If you use Ubuntu, sudo apt install libbsd-dev])
 	]
 )
 
@@ -447,7 +445,7 @@ AC_CHECK_LIB(kqueue, kqueue,
 AC_CHECK_LIB(z, gzclose,
 	LIBS="${LIBS} -lz",
 	[AC_MSG_ERROR([*** zlib is not found.
-	On Ubuntu, sudo apt install zlib1g-dev])]
+*** If use use Ubuntu, sudo apt install zlib1g-dev])]
 )
 
 # wxWidgets
@@ -462,7 +460,9 @@ for c in ${wxconfig_paths}; do
 	fi
 done
 if test -z "$wxconfig"; then
-	AC_MSG_ERROR([*** wxWidgets-3.0 not found in ${wxconfig_paths}])
+	AC_MSG_ERROR([*** wxWidgets-3.0 not found in ${wxconfig_paths}
+*** If you use pkgsrc, install x11/wxGTK30.
+*** If you use Ubuntu, sudo apt install libwxgtk3.0-gtk3-dev])
 else
 	AC_MSG_RESULT([$wxconfig])
 
@@ -493,7 +493,8 @@ fi
 AC_CHECK_TOOL([MSGFMT], [msgfmt], [:])
 if test $MSGFMT = [:]; then
 	AC_MSG_ERROR([*** msgfmt not found.
-	On Ubuntu, sudo apt install gettext])
+*** If you use pkgsrc, install devel/gettext-tools.
+*** If you use Ubuntu, sudo apt install gettext])
 fi
 
 AC_CONFIG_FILES([Makefile.cfg