diff --git a/docs/libcurl/symbols-in-versions b/docs/libcurl/symbols-in-versions
index 640344f0e6..0b566edbc3 100644
--- a/docs/libcurl/symbols-in-versions
+++ b/docs/libcurl/symbols-in-versions
@@ -45,6 +45,7 @@ CURL_GLOBAL_DEFAULT             7.8
 CURL_GLOBAL_NOTHING             7.8
 CURL_GLOBAL_SSL                 7.8
 CURL_GLOBAL_WIN32               7.8.1
+CURL_HAS_DECLSPEC_ATTRIBUTE     8.13.0
 CURL_HET_DEFAULT                7.59.0
 CURL_HTTP_VERSION_1_0           7.9.1
 CURL_HTTP_VERSION_1_1           7.9.1
diff --git a/include/curl/curl.h b/include/curl/curl.h
index 99c57f2169..346872b39d 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -102,11 +102,6 @@
 #include <sys/time.h>
 #endif
 
-/* Compatibility for non-Clang compilers */
-#ifndef __has_declspec_attribute
-#  define __has_declspec_attribute(x) 0
-#endif
-
 #ifdef  __cplusplus
 extern "C" {
 #endif
@@ -118,11 +113,17 @@ typedef void CURLSH;
  * libcurl external API function linkage decorations.
  */
 
+#ifdef __has_declspec_attribute
+#define CURL_HAS_DECLSPEC_ATTRIBUTE(x) __has_declspec_attribute(x)
+#else
+#define CURL_HAS_DECLSPEC_ATTRIBUTE(x) 0
+#endif
+
 #ifdef CURL_STATICLIB
 #  define CURL_EXTERN
 #elif defined(_WIN32) || \
-     (__has_declspec_attribute(dllexport) && \
-      __has_declspec_attribute(dllimport))
+     (CURL_HAS_DECLSPEC_ATTRIBUTE(dllexport) && \
+      CURL_HAS_DECLSPEC_ATTRIBUTE(dllimport))
 #  if defined(BUILDING_LIBCURL)
 #    define CURL_EXTERN  __declspec(dllexport)
 #  else