From 644f1639a5204ebc854c369f3f29a02cd766196b Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Sun, 5 Jan 2020 17:22:18 +0100
Subject: [PATCH] Boost 1.59 is required nowadays, remove support for older
 versions.

---
 src/kernel/context/ContextBoost.cpp | 17 +----------------
 src/kernel/context/ContextBoost.hpp |  6 +-----
 2 files changed, 2 insertions(+), 21 deletions(-)

diff --git a/src/kernel/context/ContextBoost.cpp b/src/kernel/context/ContextBoost.cpp
index 690ab05c06..71274dbadd 100644
--- a/src/kernel/context/ContextBoost.cpp
+++ b/src/kernel/context/ContextBoost.cpp
@@ -40,22 +40,9 @@ BoostContext::BoostContext(std::function<void()>&& code, actor::ActorImpl* actor
 #else
     this->fc_ = boost::context::detail::make_fcontext(stack, smx_context_stack_size, BoostContext::wrapper);
 #endif
-
-  } else {
-#if BOOST_VERSION < 105600
-    this->fc_ = new boost::context::fcontext_t();
-#endif
   }
 }
 
-BoostContext::~BoostContext()
-{
-#if BOOST_VERSION < 105600
-  if (not get_stack())
-    delete this->fc_;
-#endif
-}
-
 void BoostContext::wrapper(BoostContext::arg_type arg)
 {
 #if BOOST_VERSION < 106100
@@ -82,9 +69,7 @@ void BoostContext::wrapper(BoostContext::arg_type arg)
 void BoostContext::swap_into(SwappedContext* to_)
 {
   BoostContext* to = static_cast<BoostContext*>(to_);
-#if BOOST_VERSION < 105600
-  boost::context::jump_fcontext(this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
-#elif BOOST_VERSION < 106100
+#if BOOST_VERSION < 106100
   boost::context::jump_fcontext(&this->fc_, to->fc_, reinterpret_cast<intptr_t>(to));
 #else
   BoostContext* ctx[2] = {this, to};
diff --git a/src/kernel/context/ContextBoost.hpp b/src/kernel/context/ContextBoost.hpp
index 516b85fda1..687a3c18be 100644
--- a/src/kernel/context/ContextBoost.hpp
+++ b/src/kernel/context/ContextBoost.hpp
@@ -33,15 +33,11 @@ namespace context {
 class BoostContext : public SwappedContext {
 public:
   BoostContext(std::function<void()>&& code, actor::ActorImpl* actor, SwappedContextFactory* factory);
-  ~BoostContext() override;
 
   void swap_into(SwappedContext* to) override;
 
 private:
-#if BOOST_VERSION < 105600
-  boost::context::fcontext_t* fc_ = nullptr;
-  typedef intptr_t arg_type;
-#elif BOOST_VERSION < 106100
+#if BOOST_VERSION < 106100
   boost::context::fcontext_t fc_;
   typedef intptr_t arg_type;
 #else
-- 
2.20.1