diff --git a/libs/temporal/superclock.cc b/libs/temporal/superclock.cc
index a67b3d9c13..8b7062042d 100644
--- a/libs/temporal/superclock.cc
+++ b/libs/temporal/superclock.cc
@@ -18,7 +18,9 @@
 
 #include "temporal/superclock.h"
 
+#ifndef COMPILER_MSVC
 Temporal::superclock_t Temporal::superclock_ticks_per_second = 508032000; // 2^10 * 3^4 * 5^3 * 7^2
+#endif
 
 int (*Temporal::sample_rate_callback)() = 0;
 
diff --git a/libs/temporal/temporal/bbt_time.h b/libs/temporal/temporal/bbt_time.h
index 4203653d41..63553f2de8 100644
--- a/libs/temporal/temporal/bbt_time.h
+++ b/libs/temporal/temporal/bbt_time.h
@@ -298,10 +298,10 @@ BBT_Time::operator!= (const BBT_Offset& other) const
 
 namespace std {
 
-std::ostream& operator<< (std::ostream& o, Temporal::BBT_Time const & bbt);
-std::ostream& operator<< (std::ostream& o, Temporal::BBT_Offset const & bbt);
-std::istream& operator>> (std::istream& i, Temporal::BBT_Time& bbt);
-std::istream& operator>> (std::istream& i, Temporal::BBT_Offset& bbt);
+LIBTEMPORAL_API std::ostream& operator<< (std::ostream& o, Temporal::BBT_Time const & bbt);
+LIBTEMPORAL_API std::ostream& operator<< (std::ostream& o, Temporal::BBT_Offset const & bbt);
+LIBTEMPORAL_API std::istream& operator>> (std::istream& i, Temporal::BBT_Time& bbt);
+LIBTEMPORAL_API std::istream& operator>> (std::istream& i, Temporal::BBT_Offset& bbt);
 
 template<>
 struct numeric_limits<Temporal::BBT_Time> {
diff --git a/libs/temporal/temporal/beats.h b/libs/temporal/temporal/beats.h
index b22e0c92e3..def6e1f9bd 100644
--- a/libs/temporal/temporal/beats.h
+++ b/libs/temporal/temporal/beats.h
@@ -313,8 +313,8 @@ class DoubleableBeats : public Beats
   virtual-method-in-a-template will bite you.
 */
 
-std::ostream& operator<<(std::ostream& ostream, const Temporal::Beats& t);
-std::istream& operator>>(std::istream& istream, Temporal::Beats& b);
+LIBTEMPORAL_API std::ostream& operator<<(std::ostream& ostream, const Temporal::Beats& t);
+LIBTEMPORAL_API std::istream& operator>>(std::istream& istream, Temporal::Beats& b);
 
 } // namespace Temporal
 
diff --git a/libs/temporal/temporal/range.h b/libs/temporal/temporal/range.h
index 4d7d04525b..7b7894abf6 100644
--- a/libs/temporal/temporal/range.h
+++ b/libs/temporal/temporal/range.h
@@ -130,7 +130,7 @@ template<typename T>
 	return coverage_inclusive_ends (sa, eaE.decrement(), sb, ebE.decrement());
 }
 
-template<>  /*LIBTEMPORAL_API*/ OverlapType coverage_exclusive_ends<int64_t> (int64_t sa, int64_t eaE, int64_t sb, int64_t ebE);
+template<> LIBTEMPORAL_TEMPLATE_API OverlapType coverage_exclusive_ends<int64_t> (int64_t sa, int64_t eaE, int64_t sb, int64_t ebE);
 
 
 class RangeList;
diff --git a/libs/temporal/temporal/superclock.h b/libs/temporal/temporal/superclock.h
index da5ce5ac1e..4eb2c02bf3 100644
--- a/libs/temporal/temporal/superclock.h
+++ b/libs/temporal/temporal/superclock.h
@@ -23,18 +23,24 @@
 
 #include "pbd/integer_division.h"
 
+#include "temporal/visibility.h"
+
 namespace Temporal {
 
 typedef int64_t superclock_t;
 
-extern superclock_t superclock_ticks_per_second;
+#ifndef COMPILER_MSVC
+	extern superclock_t superclock_ticks_per_second;
+#else
+	static superclock_t superclock_ticks_per_second = 508032000; // 2^10 * 3^4 * 5^3 * 7^2
+#endif
 
 static inline superclock_t superclock_to_samples (superclock_t s, int sr) { return int_div_round (s * sr, superclock_ticks_per_second); }
 static inline superclock_t samples_to_superclock (int64_t samples, int sr) { return int_div_round (samples * superclock_ticks_per_second, superclock_t (sr)); }
 
 extern int (*sample_rate_callback)();
 
-void set_sample_rate_callback (int (*function)());
+LIBTEMPORAL_API void set_sample_rate_callback (int (*function)());
 
 }
 
diff --git a/libs/temporal/temporal/timeline.h b/libs/temporal/temporal/timeline.h
index a05b138e51..0d5354ea49 100644
--- a/libs/temporal/temporal/timeline.h
+++ b/libs/temporal/temporal/timeline.h
@@ -434,10 +434,10 @@ class LIBTEMPORAL_API timecnt_t {
 } /* end namespace Temporal */
 
 namespace std {
-std::ostream&  operator<< (std::ostream & o, Temporal::timecnt_t const & tc);
-std::istream&  operator>> (std::istream & o, Temporal::timecnt_t & tc);
-std::ostream&  operator<< (std::ostream & o, Temporal::timepos_t const & tp);
-std::istream&  operator>> (std::istream & o, Temporal::timepos_t & tp);
+LIBTEMPORAL_API std::ostream&  operator<< (std::ostream & o, Temporal::timecnt_t const & tc);
+LIBTEMPORAL_API std::istream&  operator>> (std::istream & o, Temporal::timecnt_t & tc);
+LIBTEMPORAL_API std::ostream&  operator<< (std::ostream & o, Temporal::timepos_t const & tp);
+LIBTEMPORAL_API std::istream&  operator>> (std::istream & o, Temporal::timepos_t & tp);
 }
 
 #if 0
diff --git a/libs/temporal/temporal/types.h b/libs/temporal/temporal/types.h
index 1ac7e8ec76..460fdbad56 100644
--- a/libs/temporal/temporal/types.h
+++ b/libs/temporal/temporal/types.h
@@ -26,9 +26,15 @@
 
 #include "pbd/integer_division.h"
 
+#include "temporal/visibility.h"
+
 namespace Temporal {
 
-extern void init ();
+#ifdef COMPILER_MSVC
+	LIBTEMPORAL_API void init ();
+#else
+	extern void init ();
+#endif
 
 /* Any position measured in audio samples.
    Assumed to be non-negative but not enforced.