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be more cross-compilation friendly.

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From cgd@netbsd.org (Chris G. Demetriou)
This commit is contained in:
assar 2000-06-10 14:19:02 +00:00
parent c292559287
commit 5c8ac608be
1 changed files with 13 additions and 5 deletions
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18
configure.in
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@ -1,4 +1,4 @@
dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.115 2000-05-10 08:20:53 itojun Exp $ (LBL)
dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.116 2000-06-10 14:19:02 assar Exp $ (LBL)
dnl
dnl Copyright (c) 1994, 1995, 1996, 1997
dnl The Regents of the University of California. All rights reserved.
@ -6,7 +6,7 @@ dnl
dnl Process this file with autoconf to produce a configure script.
dnl
AC_REVISION($Revision: 1.115 $)
AC_REVISION($Revision: 1.116 $)
AC_PREREQ(2.13)
AC_INIT(tcpdump.c)
@ -29,10 +29,18 @@ case "$target_os" in
linux*)
AC_MSG_CHECKING(Linux kernel version)
AC_CACHE_VAL(ac_cv_linux_vers,
ac_cv_linux_vers=`uname -r 2>&1 | \
sed -n -e '$s/.* //' -e '$s/\..*//p'`)
if test "$cross_compiling" = yes; then
AC_CACHE_VAL(ac_cv_linux_vers,
ac_cv_linux_vers=unknown)
else
AC_CACHE_VAL(ac_cv_linux_vers,
ac_cv_linux_vers=`uname -r 2>&1 | \
sed -n -e '$s/.* //' -e '$s/\..*//p'`)
fi
AC_MSG_RESULT($ac_cv_linux_vers)
if test $ac_cv_linux_vers = unknown ; then
AC_MSG_ERROR(cannot determine linux version when cross-compiling)
fi
if test $ac_cv_linux_vers -lt 2 ; then
AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
fi