freebsd-dev/config/user-ioctl.m4
Brian Behlendorf c9c0d073da Add build system
Add autoconf style build infrastructure to the ZFS tree.  This
includes autogen.sh, configure.ac, m4 macros, some scripts/*,
and makefiles for all the core ZFS components.
2010-08-31 13:41:27 -07:00

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dnl #
dnl # Check for ioctl()
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_IOCTL], [
AC_MSG_CHECKING(for ioctl())
AC_EGREP_HEADER(ioctl, unistd.h, is_unistd=yes, is_unistd=no)
AC_EGREP_HEADER(ioctl, sys/ioctl.h, is_sys_ioctl=yes, is_sys_ioctl=no)
AC_EGREP_HEADER(ioctl, stropts.h, is_stropts=yes, is_stropts=no)
if test $is_unistd = yes; then
result=unistd.h
AC_DEFINE([HAVE_IOCTL_IN_UNISTD_H], 1,
[Define to 1 if ioctl() defined in <unistd.h>])
else
if test $is_sys_ioctl = yes; then
result=sys/ioctl.h
AC_DEFINE([HAVE_IOCTL_IN_SYS_IOCTL_H], 1,
[Define to 1 if ioctl() defined in <sys/ioctl.h>])
elif test $is_stropts = yes; then
AC_DEFINE([HAVE_IOCTL_IN_STROPTS_H], 1,
result=stropts.h
[Define to 1 if ioctl() defined in <stropts.h>])
else
result=no
fi
fi
if test $result = no; then
AC_MSG_RESULT([no])
AC_MSG_ERROR([*** Cannot locate ioctl() definition])
else
AC_MSG_RESULT(yes)
fi
])