dnl CF_GXX_VERSION version: 9 updated: 2023/03/05 14:30:13
dnl --------------
dnl Check for version of g++
AC_DEFUN([CF_GXX_VERSION],[
AC_REQUIRE([AC_PROG_CPP])
GXX_VERSION=none
if test "$GXX" = yes; then
	AC_MSG_CHECKING(version of ${CXX:-g++})
	GXX_VERSION="`${CXX:-g++} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
	if test -z "$GXX_VERSION"
	then
		GXX_VERSION=unknown
		GXX=no
	fi
	AC_MSG_RESULT($GXX_VERSION)
fi
])dnl
