--- nono/configure.ac	2026/04/29 17:04:37	1.1.1.4
+++ nono/configure.ac	2026/04/29 17:04:43	1.1.1.5
@@ -388,9 +388,26 @@ AC_MSG_RESULT([$netdriver])
 AC_SUBST([NETDRIVER], [$netdriver])
 
 # libbsd on Linux
+AC_CHECK_LIB(c, getprogname, ,)
 AC_CHECK_LIB(bsd, getprogname,
 	AC_SUBST([LIBBSD_LIBS], [-lbsd]),
 	)
+# なければ停止する
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+	[
+		#include <stdlib.h>
+		#include "confdefs.h"
+		#if defined(HAVE_BSD_BSD_H)
+		#include <bsd/bsd.h>
+		#endif
+	], [
+		getprogname()
+	])],
+	# nothing to do on success
+	, [AC_MSG_ERROR([*** getprogname is not found.
+	On Ubuntu, sudo apt install libbsd-dev])
+	]
+)
 
 # libedit (editline)
 if test x"$ac_cv_header_histedit_h" = xyes; then
@@ -402,6 +419,12 @@ AC_CHECK_LIB(kqueue, kqueue,
 	AC_SUBST([LIBKQUEUE_LIBS], [-lkqueue]),
 	)
 
+AC_CHECK_LIB(z, gzclose,
+	AC_SUBST([LIBZ_LIBS], [-lz]),
+	[AC_MSG_ERROR([*** zlib is not found.
+	On Ubuntu, sudo apt install zlib1g-dev])]
+)
+
 # wxWidgets
 AC_MSG_CHECKING(for wx-config)
 wxconfig_paths="${WX_CONFIG} wx-config-3.0 wx-config"
@@ -439,6 +462,13 @@ else
 	AC_SUBST([WXWIDGETS_LIBS], [$wxlibs])
 fi
 
+# gettext
+AC_CHECK_TOOL([MSGFMT], [msgfmt], [:])
+if test $MSGFMT = [:]; then
+	AC_MSG_ERROR([*** msgfmt not found.
+	On Ubuntu, sudo apt install gettext])
+fi
+
 AC_CONFIG_FILES([Makefile.cfg
 	host/Makefile
 	wx/Makefile