--- vanilla/silc-toolkit-1.1.12/includes/silcwin32.h	2014-05-13 02:20:22.000000000 -0400
+++ silc-toolkit-1.1.12/includes/silcwin32.h	2014-12-27 21:28:18.165096000 -0500
@@ -71,7 +71,7 @@
 #undef sleep
 #define sleep(x) Sleep((x) * 1000)
 
-#if _MSC_VER < 1300
+#if defined(_MSC_VER) && _MSC_VER < 1300
 #define SetWindowLongPtr SetWindowLong
 #define GetWindowLongPtr GetWindowLong
 #endif /* _MSC_VER < 1300 */
--- silc-toolkit-1.1.12/configure.ac.old	2021-12-07 00:02:24.180565726 +0300
+++ silc-toolkit-1.1.12/configure.ac	2021-12-07 00:03:18.051816830 +0300
@@ -1233,7 +1233,8 @@
     AC_MSG_RESULT(yes)
     AC_DEFINE([SILC_WIN32], [], [SILC_WIN32])
     win32_support=true
-    CFLAGS="-mno-cygwin $CFLAGS"
+    #Remove -mno-cygwin, void having DLLAPI defined to import symbols while the library is being compiled
+    CFLAGS="-D_LIB $CFLAGS"
     LIBS="$LIBS -lwsock32"
   ],
   [