From 13751a0fc146976ac722e8424f9c35c59d678f4f Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Fri, 5 Apr 2024 17:51:06 +0200
Subject: linux: Do not enable in SMP, it is not MP-safe

---
 linux/configfrag.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/linux/configfrag.ac b/linux/configfrag.ac
index c851e563..a4f9c5a9 100644
--- a/linux/configfrag.ac
+++ b/linux/configfrag.ac
@@ -55,6 +55,11 @@ dnl USE OF THIS SOFTWARE.
 AC_ARG_ENABLE([linux-groups],
   AS_HELP_STRING([--disable-linux-groups], [Linux drivers]))
 
+[if [ $mach_ncpus -gt 1 ]; then]
+  # Do not enable in SMP, it is not MP-safe
+  enable_linux_groups=no
+[fi]
+
 AC_DEFUN([AC_OPTION_Linux_group], [
 AC_ARG_ENABLE([$1-group],
   AS_HELP_STRING([--enable-$1-group], [$2]),
-- 
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