diff -ur fftw-3.3.3.orig/api/fftw3.h fftw-3.3.3/api/fftw3.h
--- fftw-3.3.3.orig/api/fftw3.h	2013-08-30 20:48:15 -0400
+++ fftw-3.3.3/api/fftw3.h	2013-08-30 20:48:31 -0400
@@ -82,8 +82,14 @@
 #  else /* user is calling FFTW; import symbol */
 #    define FFTW_EXTERN extern __declspec(dllimport) 
 #  endif
+#  if defined(COMPILING_FFTW_THREADS)
+#    define FFTW_THREADS_EXTERN extern __declspec(dllexport)
+#  else
+#    define FFTW_THREADS_EXTERN extern __declspec(dllimport)
+#  endif
 #else
 #  define FFTW_EXTERN extern
+#  define FFTW_THREADS_EXTERN extern
 #endif
 
 enum fftw_r2r_kind_do_not_use_me {
@@ -315,9 +321,9 @@
 									   \
 FFTW_EXTERN void X(set_timelimit)(double t);				   \
 									   \
-FFTW_EXTERN void X(plan_with_nthreads)(int nthreads);			   \
-FFTW_EXTERN int X(init_threads)(void);					   \
-FFTW_EXTERN void X(cleanup_threads)(void);				   \
+FFTW_THREADS_EXTERN void X(plan_with_nthreads)(int nthreads);		   \
+FFTW_THREADS_EXTERN int X(init_threads)(void);				   \
+FFTW_THREADS_EXTERN void X(cleanup_threads)(void);			   \
 									   \
 FFTW_EXTERN int X(export_wisdom_to_filename)(const char *filename);	   \
 FFTW_EXTERN void X(export_wisdom_to_file)(FILE *output_file);		   \
diff -ur fftw-3.3.3.orig/dft/ct.h fftw-3.3.3/dft/ct.h
--- fftw-3.3.3.orig/dft/ct.h	2013-08-30 20:48:15 -0400
+++ fftw-3.3.3/dft/ct.h	2013-08-30 20:48:31 -0400
@@ -56,7 +56,7 @@
 ct_solver *X(mksolver_ct)(size_t size, INT r, int dec, 
 			  ct_mkinferior mkcldw, 
 			  ct_force_vrecursion force_vrecursionp);
-extern ct_solver *(*X(mksolver_ct_hook))(size_t, INT, int, 
+IFFTW_EXTERN ct_solver *(*X(mksolver_ct_hook))(size_t, INT, int, 
 					 ct_mkinferior, ct_force_vrecursion);
 
 void X(regsolver_ct_directw)(planner *plnr,
diff -ur fftw-3.3.3.orig/rdft/hc2hc.h fftw-3.3.3/rdft/hc2hc.h
--- fftw-3.3.3.orig/rdft/hc2hc.h	2013-08-30 20:48:17 -0400
+++ fftw-3.3.3/rdft/hc2hc.h	2013-08-30 20:48:31 -0400
@@ -46,7 +46,7 @@
 };
 
 hc2hc_solver *X(mksolver_hc2hc)(size_t size, INT r, hc2hc_mkinferior mkcldw);
-extern hc2hc_solver *(*X(mksolver_hc2hc_hook))(size_t, INT, hc2hc_mkinferior);
+IFFTW_EXTERN hc2hc_solver *(*X(mksolver_hc2hc_hook))(size_t, INT, hc2hc_mkinferior);
 
 void X(regsolver_hc2hc_direct)(planner *plnr, khc2hc codelet, 
 			       const hc2hc_desc *desc);
diff -ur fftw-3.3.3.orig/tests/Makefile.in fftw-3.3.3/tests/Makefile.in
--- fftw-3.3.3.orig/tests/Makefile.in	2013-08-30 20:48:17 -0400
+++ fftw-3.3.3/tests/Makefile.in	2013-08-30 20:48:31 -0400
@@ -82,7 +82,7 @@
 	$(top_builddir)/libbench2/libbench2.a $(am__DEPENDENCIES_1)
 bench_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CCLD) $(bench_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
-	$(LDFLAGS) -o $@
+	$(LDFLAGS) -Wl,-subsystem:console -o $@
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -251,7 +251,7 @@
 top_srcdir = @top_srcdir@
 AM_CPPFLAGS = -I$(top_srcdir)/kernel -I$(top_srcdir)/libbench2	\
 -I$(top_srcdir)/dft -I$(top_srcdir)/rdft -I$(top_srcdir)/reodft	\
--I$(top_srcdir)/threads -I$(top_srcdir)/api 
+-I$(top_srcdir)/threads -I$(top_srcdir)/api -DFFTW_DLL
 
 EXTRA_DIST = check.pl README
 @OPENMP_TRUE@@THREADS_FALSE@bench_CFLAGS = $(OPENMP_CFLAGS)
diff -ur fftw-3.3.3.orig/threads/Makefile.in fftw-3.3.3/threads/Makefile.in
--- fftw-3.3.3.orig/threads/Makefile.in	2013-08-30 20:48:17 -0400
+++ fftw-3.3.3/threads/Makefile.in	2013-08-30 20:48:31 -0400
@@ -313,7 +313,8 @@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AM_CPPFLAGS = -I$(top_srcdir)/kernel -I$(top_srcdir)/dft	\
--I$(top_srcdir)/rdft -I$(top_srcdir)/api
+-I$(top_srcdir)/rdft -I$(top_srcdir)/api			\
+-DCALLING_FFTW -DCOMPILING_FFTW_THREADS
 
 AM_CFLAGS = $(STACK_ALIGN_CFLAGS)
 @OPENMP_FALSE@FFTWOMPLIB = 
@@ -329,7 +330,7 @@
 vrank-geq1-rdft2.c f77api.c f77funcs.h
 
 libfftw3@PREC_SUFFIX@_threads_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
-libfftw3@PREC_SUFFIX@_threads_la_LDFLAGS = -version-info @SHARED_VERSION_INFO@
+libfftw3@PREC_SUFFIX@_threads_la_LDFLAGS = -no-undefined -version-info @SHARED_VERSION_INFO@
 @COMBINED_THREADS_FALSE@libfftw3@PREC_SUFFIX@_threads_la_LIBADD = ../libfftw3@PREC_SUFFIX@.la
 libfftw3@PREC_SUFFIX@_omp_la_SOURCES = api.c conf.c openmp.c	\
 threads.h dft-vrank-geq1.c ct.c rdft-vrank-geq1.c hc2hc.c	\
diff -ur fftw-3.3.3.orig/tools/Makefile.in fftw-3.3.3/tools/Makefile.in
--- fftw-3.3.3.orig/tools/Makefile.in	2013-08-30 20:48:17 -0400
+++ fftw-3.3.3/tools/Makefile.in	2013-08-30 20:48:31 -0400
@@ -91,7 +91,7 @@
 fftw@PREC_SUFFIX@_wisdom_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
 	$(LIBTOOLFLAGS) --mode=link $(CCLD) \
 	$(fftw@PREC_SUFFIX@_wisdom_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
-	$(LDFLAGS) -o $@
+	$(LDFLAGS) -Wl,-subsystem:console -o $@
 am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
 am__vpath_adj = case $$p in \
     $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \