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-rw-r--r--config/open-axiom.m48
1 files changed, 4 insertions, 4 deletions
diff --git a/config/open-axiom.m4 b/config/open-axiom.m4
index 3ee8ceb5..fce469bd 100644
--- a/config/open-axiom.m4
+++ b/config/open-axiom.m4
@@ -258,16 +258,16 @@ esac
])
dnl -----------------------------
-dnl -- OPENAXIOM_REQUIRE_CXX14 --
+dnl -- OPENAXIOM_REQUIRE_CXX17 --
dnl -----------------------------
-AC_DEFUN([OPENAXIOM_REQUIRE_CXX14],[
+AC_DEFUN([OPENAXIOM_REQUIRE_CXX17],[
oa_saved_cxxflags=$CXXFLAGS
-CXXFLAGS="-std=c++14"
+CXXFLAGS="-std=c++17"
AC_MSG_CHECKING([whether $CXX supports $CXXFLAGS])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[AC_MSG_RESULT([yes])]
[CXXFLAGS="$CXXFLAGS $oa_saved_cxxflags"],
- [AC_MSG_ERROR([OpenAxiom requires a C++11 compiler])])
+ [AC_MSG_ERROR([OpenAxiom requires a C++17 compiler])])
])
dnl -------------------------------