diff --git a/Contrib/Library/LibraryLocal/LibraryLocal.cpp b/Contrib/Library/LibraryLocal/LibraryLocal.cpp
index 5b4cb7ea..1151a15a 100644
--- a/Contrib/Library/LibraryLocal/LibraryLocal.cpp
+++ b/Contrib/Library/LibraryLocal/LibraryLocal.cpp
@@ -150,8 +150,8 @@ int _tmain(int argc, TCHAR* argv[])
   }
   else
   {
-    fprintf(fHdr, "!define LIBRARY_VERSION_HIGH %lu\n", high);
-    fprintf(fHdr, "!define LIBRARY_VERSION_LOW %lu\n", low);
+    fprintf(fHdr, "!define LIBRARY_VERSION_HIGH %lu\n", static_cast<unsigned long>(high));
+    fprintf(fHdr, "!define LIBRARY_VERSION_LOW %lu\n", static_cast<unsigned long>(low));
   }
 
   fclose(fHdr);
diff --git a/Source/zlib/ZUTIL.H b/Source/zlib/ZUTIL.H
index e27b0ea5..264fe27a 100644
--- a/Source/zlib/ZUTIL.H
+++ b/Source/zlib/ZUTIL.H
@@ -69,6 +69,7 @@ typedef unsigned long  ulg;
 #    include "../exehead/util.h"
 #    define zmemcpy mini_memcpy
 #  else
+#    include <string.h> // Avoid "incompatible implicit declaration of built-in function"
 #    define zmemcpy memcpy
 #  endif
 #else