Merge pull request #5153

32ebc95d CMakeLists.txt: detect and use -pthread compiler flag (moneromooo-monero)
be2d061b miner: fix build with boost 1.69 (moneromooo-monero)
1de62cb1 mlocker: fix access to global lock map after dtor on exit (moneromooo-monero)
5544bb83 mlocker: fix dtor ordering problem (moneromooo-monero)

CMakeLists.txt

@@ -428,6 +428,8 @@ if (UNIX AND NOT APPLE)
   # Note that at the time of this writing the -Wstrict-prototypes flag added below will make this fail
   set(THREADS_PREFER_PTHREAD_FLAG ON)
   find_package(Threads)
+  add_c_flag_if_supported(-pthread CMAKE_C_FLAGS)
+  add_cxx_flag_if_supported(-pthread CMAKE_CXX_FLAGS)
 endif()
 
 # Handle OpenSSL, used for sha256sum on binary updates and light wallet ssl http

contrib/epee/src/mlocker.cpp

@@ -83,13 +83,13 @@ namespace epee
 
   boost::mutex &mlocker::mutex()
   {
-    static boost::mutex vmutex;
-    return vmutex;
+    static boost::mutex *vmutex = new boost::mutex();
+    return *vmutex;
   }
   std::map<size_t, unsigned int> &mlocker::map()
   {
-    static std::map<size_t, unsigned int> vmap;
-    return vmap;
+    static std::map<size_t, unsigned int> *vmap = new std::map<size_t, unsigned int>();
+    return *vmap;
   }
 
   size_t mlocker::get_page_size()

src/cryptonote_basic/miner.cpp

@@ -637,7 +637,7 @@ namespace cryptonote
         boost::tribool battery_powered(on_battery_power());
         if(!indeterminate( battery_powered ))
         {
-          on_ac_power = !battery_powered;
+          on_ac_power = !(bool)battery_powered;
         }
       }