1 2 3 4 5
AC_DEFUN([AC_CHECK_TOOL_STRICT], [AC_CHECK_PROG([$1], [${ac_tool_prefix}$2], [${ac_tool_prefix}$2], [$3], [$4])]) AC_DEFUN([AC_PATH_TOOL_STRICT], [AC_PATH_PROG([$1], [${ac_tool_prefix}$2], [$3])])