adding explicit macro def inside dragon4.c

Author: SwayamInSync

quaddtype/numpy_quaddtype/src/dragon4.c

@@ -25,7 +25,6 @@ Modifications are specific to support the SLEEF_QUAD
 #include "dtype.h"
 #include "scalar.h"
 
-
 #if !defined(HAVE_THREAD_LOCAL) && !defined(HAVE__THREAD_LOCAL) && \
     !defined(HAVE___THREAD) && !defined(HAVE___DECLSPEC_THREAD_) && \
     !defined(__cplusplus)
@@ -34,6 +33,20 @@ Modifications are specific to support the SLEEF_QUAD
 #warning "NPY_TLS Thread-local storage support detected."
 #endif
 
+#ifdef __cplusplus
+    #define NPY_TLS thread_local
+#elif defined(HAVE_THREAD_LOCAL)
+    #define NPY_TLS thread_local
+#elif defined(HAVE__THREAD_LOCAL)
+    #define NPY_TLS _Thread_local
+#elif defined(HAVE___THREAD)
+    #define NPY_TLS __thread
+#elif defined(HAVE___DECLSPEC_THREAD_)
+    #define NPY_TLS __declspec(thread)
+#else
+    #define NPY_TLS
+#endif
+
 #if 0
 #define DEBUG_ASSERT(stmnt) assert(stmnt)
 #else