[version] フラグ情報のflag_groupへの移行に伴うバージョンアップ

[hengbandforosx/hengbandosx.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index b8f23a3..158f90a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -44,7 +44,11 @@ AC_SUBST(DEFAULT_VAR_PATH)
 dnl Checks for programs.
 AC_LANG(C++)
 AC_PROG_CXX
-AX_CXX_COMPILE_STDCXX_17
+m4_ifdef([AX_CXX_COMPILE_STDCXX_17], [
+  AX_CXX_COMPILE_STDCXX_17
+], [
+  AC_MSG_ERROR([AX_CXX_COMPILE_STDCXX_17 macro is not defined. You need to install autoconf-archive.])
+])
 PKG_PROG_PKG_CONFIG
 
 AC_ARG_ENABLE(japanese,