dnl $Id: ensc_kerneldir.m4,v 1.1.2.3 2004/03/04 03:12:34 ensc Exp $ dnl Copyright (C) 2002 Enrico Scholz dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; version 2 of the License. dnl dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. dnl Usage: ENSC_KERNEL_HEADERS() dnl ... basedir of kernel-headers (without the '/linux'); dnl this value will be AC_SUBST'ed AC_DEFUN([_ENSC_KERNEL_DIR], [ AC_CACHE_CHECK([for linux kernel dir], [ensc_cv_path_kerneldir], [ AC_ARG_WITH([kerneldir], [AC_HELP_STRING([--with-kerneldir=DIR], [assume kernelsources in DIR (default: /lib/modules//build)])], [case "$withval" in yes|no) AC_MSG_ERROR(['$withval' is not a valid value for kerneldir]);; *) ensc_cv_path_kerneldir=$withval;; esac], [ensc_cv_path_kerneldir= for i in /lib/modules/$(uname -r)/build /usr/src/linux /usr; do test -e $i/include/linux/version.h && { ensc_cv_path_kerneldir=$i; break; } done]) ]) test "$ensc_cv_path_kerneldir" -a -e "$ensc_cv_path_kerneldir"/include/linux/version.h || { AC_MSG_ERROR([Can not find kernelsources]) } ]) AC_DEFUN([ENSC_KERNEL_HEADERS], [ AC_REQUIRE([_ENSC_KERNEL_DIR]) AC_CACHE_CHECK([for linux kernel headers], [ensc_cv_path_kernelheaders], [ ensc_cv_path_kernelheaders=$ensc_cv_path_kerneldir/include ]) if test x"$1" != x; then $1=$ensc_cv_path_kernelheaders AC_SUBST($1) fi ])