Merge b_md into HEAD

[fs/lustre-release.git] / lustre / configure.in

diff --git a/lustre/configure.in b/lustre/configure.in
index 6ef9286..d51fb40 100644 (file)
--- a/lustre/configure.in
+++ b/lustre/configure.in
@@ -1,7 +1,7 @@
 AC_INIT
 AC_CANONICAL_SYSTEM
 
-# Copyright (C) 2001  Cluster File Systems, Inc.
+# Copyright (C) 2001-2003 Cluster File Systems, Inc.
 #
 # This code is issued under the GNU General Public License.
 # See the file COPYING in this distribution
@@ -9,7 +9,29 @@ AC_CANONICAL_SYSTEM
 # Automake variables.  Steal the version number from lustre.spec.in.
 AM_INIT_AUTOMAKE(lustre, builtin([esyscmd], [sed -ne '/^%define version /{ s/.*version //; p; q; }' scripts/lustre.spec.in]))
 #AM_MAINTAINER_MODE
+
 AC_PROG_CC
+AC_MSG_CHECKING(for buggy compiler)
+CC_VERSION=`$CC -v 2>&1 | grep "^gcc version"`
+bad_cc() {
+       echo
+       echo "   '$CC_VERSION'"
+       echo "  has been known to generate bad code, "
+       echo "  please get an updated compiler."
+       AC_MSG_ERROR(sorry)
+}
+case "$CC_VERSION" in 
+       # ost_pack_niobuf putting 64bit NTOH temporaries on the stack
+       # without "sub    $0xc,%esp" to protect the stack from being
+       # stomped on by interrupts (bug 606)
+       "gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)")
+               bad_cc
+               ;;
+       *)
+               AC_MSG_RESULT(no known problems)
+               ;;
+esac
+
 AC_PROG_RANLIB
 
 #