--- a/numexpr/msvc_function_stubs.hpp
+++ b/numexpr/msvc_function_stubs.hpp
@@ -14,7 +14,7 @@
    definitions in <math.h> are actually #define'd and are not usable
    as function pointers :-/ */
 
-#if _MSC_VER < 1400  // 1310 == MSVC 7.1
+#if defined(_MSC_VER) && _MSC_VER < 1400  // 1310 == MSVC 7.1
 /* Apparently, single precision functions are not included in MSVC 7.1 */
 
 #define sqrtf(x)    ((float)sqrt((double)(x)))
--- a/numexpr/numexpr_config.hpp
+++ b/numexpr/numexpr_config.hpp
@@ -27,13 +27,15 @@
 // constant. If numpy raises NPY_MAXARGS, we should notice and raise this as well
 #define NE_MAXARGS 64
 
-#if defined(_WIN32)
+#if defined(_MSC_VER)
   #include "win32/pthread.h"
   #include <process.h>
   #define getpid _getpid
 #else
   #include <pthread.h>
   #include "unistd.h"
+  typedef int sigset_t;
+  static inline int sigfillset(sigset_t *sigs) { return 0; }
 #endif
 
 #ifdef USE_VML
--- a/setup.py
+++ b/setup.py
@@ -44,8 +44,7 @@
     # For MSVC only
     if "MSC" in platform.python_compiler():
         extra_cflags = ['/O2']
-    extra_link_args = []
-    sources.append('numexpr/win32/pthread.c')
+    extra_link_args = ['-pthread']
 else:
     extra_cflags = []
     extra_link_args = []