dnl This file is free software, distributed under the terms of the GNU
dnl General Public License. As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License. As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
# AC_CHECK_HEADERS(HEADER1 HEADER2 ...).
# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
# AC_CHECK_HEADERS(HEADER1 HEADER2 ...).