diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5e06076..24b9c26d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -432,7 +432,7 @@ qi_install_header(${SERIALIZE_HEADERS} SUBFOLDER serialize)
 qi_create_lib(port
   SHARED
   SRC ${PORT_SOURCES} ${PORT_HEADERS}
-  DEPENDS BOOST BOOST_CHRONO BOOST_FILESYSTEM BOOST_DATE_TIME BOOST_SYSTEM BOOST_THREAD)
+  DEPENDS BOOST BOOST_CHRONO BOOST_FILESYSTEM BOOST_DATE_TIME BOOST_SYSTEM BOOST_THREAD BOOST_REGEX)
 
 set_target_properties(port
   PROPERTIES
diff --git a/include/libport/ctime b/include/libport/ctime
index 2aaaf104..98a77e44 100644
--- a/include/libport/ctime
+++ b/include/libport/ctime
@@ -23,7 +23,7 @@
 | timespec.  |
 `-----------*/
 
-# if defined WIN32
+# if defined WIN32 && (_MSC_VER < 1900)
 struct timespec
 {
   time_t tv_sec;
diff --git a/include/libport/option-parser.hxx b/include/libport/option-parser.hxx
index bee36dec..6e8cecdc 100644
--- a/include/libport/option-parser.hxx
+++ b/include/libport/option-parser.hxx
@@ -22,7 +22,7 @@ namespace libport
   {
     if (!filled_)
     {
-      aver(def);
+      aver(bool(def));
       return def.get();
     }
     return boost::lexical_cast<T>(value_);
diff --git a/include/sched/exception.hh b/include/sched/exception.hh
index 9d4e3ecb..664b43d4 100644
--- a/include/sched/exception.hh
+++ b/include/sched/exception.hh
@@ -38,7 +38,7 @@ namespace sched
 /// Define an optional field Name, and accessors.
 #define ADD_FIELD(Type, Name)						\
  public:                                                                \
-   bool Name ## _is_set() const { return Name ## _; };			\
+   bool Name ## _is_set() const { return bool(Name ## _); };			\
    const Type& Name ## _get() const { return Name ## _ .get(); };	\
    void Name ## _set(const Type& data) { Name ## _ = data; };		\
  private:								\
diff --git a/include/sched/libcoroutine/Common.h b/include/sched/libcoroutine/Common.h
index c5bfa3f6..1d970c28 100644
--- a/include/sched/libcoroutine/Common.h
+++ b/include/sched/libcoroutine/Common.h
@@ -29,7 +29,7 @@ These defines are helpful for doing OS specific checks in the code.
 
 #if defined(WIN32) || defined(__WINS__) || defined(__MINGW32__) || defined(_MSC_VER)
 #define inline __inline
-#if defined _MSC_VER
+#if  (_MSC_VER < 1900)
 # define snprintf _snprintf
 #endif
 #define usleep(x) Sleep(((x)+999)/1000)
diff --git a/lib/libport/cstdlib.cc b/lib/libport/cstdlib.cc
index 90bba7d7..0ad5396d 100644
--- a/lib/libport/cstdlib.cc
+++ b/lib/libport/cstdlib.cc
@@ -124,10 +124,10 @@ namespace libport
 # if defined __APPLE__
     res = env_build(*_NSGetEnviron());
 # elif defined _MSC_VER || defined __MINGW32__
-    char* environ = GetEnvironmentStrings();
-    for (char* cp = environ; *cp; cp += strlen(cp) + 1)
+    char* env = GetEnvironmentStrings();
+    for (char* cp = env; *cp; cp += strlen(cp) + 1)
       env_add(res, cp);
-    FreeEnvironmentStrings(environ);
+    FreeEnvironmentStrings(env);
 # else
      res = env_build(environ);
 # endif
diff --git a/lib/libport/option-parser.cc b/lib/libport/option-parser.cc
index 0f98534d..2596cc5c 100644
--- a/lib/libport/option-parser.cc
+++ b/lib/libport/option-parser.cc
@@ -305,7 +305,7 @@ namespace libport
   {
     if (!filled_)
     {
-      aver(def);
+      aver(bool(def));
       return def.get();
     }
     return value_;