From efe455139fa6d17aa74e71453870675bb67f6795 Mon Sep 17 00:00:00 2001
From: germeier <germeier>
Date: Sun, 21 Mar 2004 18:09:09 +0000
Subject: fixed build environment

---
 configure.in | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 27ed75d..f96349f 100644
--- a/configure.in
+++ b/configure.in
@@ -92,19 +92,36 @@ esac
 AC_SUBST(USB_CFLAGS)
 AC_SUBST(USB_LIBS)
 
+dnl --- only use deprecated kernel module if requested
+
+AC_DEFUN([TEST_KERNEL],
+[AC_ARG_WITH([kernel-module],
+             AC_HELP_STRING([--with-kernel-module],
+                            [enable the deprecated kernel module for 2.2.x and 2.4.x]),
+             [ac_cv_use_kernel=$withval], [ac_cv_use_kernel=no])
+AC_CACHE_CHECK([whether to build the kernel module],
+               [ac_cv_use_kernel], [ac_cv_use_kernel=no])])
+
+TEST_KERNEL
+
+if test "$ac_cv_use_kernel" = yes; then
+  MPIO_KERNEL=kernel
+
 dnl --- check for kernel version
 kernel_version=`uname -r 2>&1`
 echo -n "checking for kernel version ... "
 case "$kernel_version" in
-  '') kernel_version="?.??"; _k_verc_fail=yes;;
-  [0-1].[0-9].[0-9]*|2.[0-1].[0-9]*)
-    _k_verc_fail=no;;
+    '') kernel_version="?.??"; _k_verc_fail=yes;;
+    [[0-1]].[[0-9]].[[0-9]]*|2.[[0-1]].[[0-9]]*|2.[[5-9]].[[0-9]]*|3.[[0-9]]*.[[0-9]]*)
+    _k_verc_fail=yes;;
+    *) k_ver_fail=no;;
 esac
 echo $kernel_version
 if test "$_k_verc_fail" ; then
-  echo "  Your kernel version is too old."
-  echo "  Please update your system to a kernel version of 2.2.x or higher."
-  AC_ERROR(too old)
+  echo "  Your kernel version does not match."
+  echo "  The kernel module only works for kernel 2.2.x and 2.4.x."
+  AC_ERROR(wrong kernel version)
+  unset MPIO_KERNEL
 fi
 
 MODULE_PATH="/lib/modules/${kernel_version}"
@@ -138,6 +155,10 @@ else
 fi
 AC_SUBST(KERNEL_INCLUDE)
 
+fi
+
+AC_SUBST(MPIO_KERNEL)
+
 dnl ------------------------------------------------------------
 
 # could not find a way to compile the kernel module correctly
-- 
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