From 799c3c868f6d06b032ab200ab387d761a97e61c5 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Date: Tue, 6 Feb 2018 23:11:07 +0100
Subject: [PATCH] gnu: sablevm: Fix broken build.

* gnu/packages/java.scm (sablevm)[arguments]: Change threading type.
---
 gnu/packages/java.scm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 2724f0f20a..46d920e285 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015, 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2017 Carlo Zancanaro <carlo@zancanaro.id.au>
@@ -169,7 +169,8 @@ This package provides the classpath library.")
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags
-       (list "--with-internal-libffi=no"
+       (list "--with-threading=switch" ; slower but prevents segfault
+             "--with-internal-libffi=no"
              "--with-internal-libpopt=no")
        #:phases
        (modify-phases %standard-phases