From 92f230e22054626e1c462e58ada303559b08891b Mon Sep 17 00:00:00 2001
From: Andreas Suter <andreas.suter@psi.ch>
Date: Wed, 6 Jun 2018 12:56:27 +0200
Subject: [PATCH] fixed a bug when compiling with -DNDEBUG

---
 src/external/libCuba/src/common/Fork.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/external/libCuba/src/common/Fork.c b/src/external/libCuba/src/common/Fork.c
index 82e21349..358cefdc 100644
--- a/src/external/libCuba/src/common/Fork.c
+++ b/src/external/libCuba/src/common/Fork.c
@@ -95,9 +95,16 @@ Extern void SUFFIX(cubafork)(Spin **pspin)
   for( core = -spin->spec.naccel; core < spin->spec.ncores; ++core ) {
     int fd[2];
     pid_t pid;
+    //as35 the next two if's fix the crash when compiling with -DNDEBUG
+    if (socketpair(AF_LOCAL, SOCK_STREAM, 0, fd) == -1)
+      assert(0);
+    if ((pid = fork()) == -1)
+      assert(0);
+    /*//as35 see comment just above
     assert(
       socketpair(AF_LOCAL, SOCK_STREAM, 0, fd) != -1 &&
       (pid = fork()) != -1 );
+    */
     if( pid == 0 ) {
       close(fd[0]);
       free(spin);