diff --git a/test/cfg/std.c b/test/cfg/std.c
index 0fea8bef0..111849f75 100644
--- a/test/cfg/std.c
+++ b/test/cfg/std.c
@@ -72,18 +72,22 @@ void nullpointer(int value)
     int res = 0;
     FILE *fp;
 
+#ifndef __CYGWIN__
     // cppcheck-suppress nullPointer
     clearerr(0);
     // cppcheck-suppress ignoredReturnValue
     // cppcheck-suppress nullPointer
     feof(0);
+#endif
     // cppcheck-suppress nullPointer
     (void)fgetc(0);
     // cppcheck-suppress nullPointer
     fclose(0);
+#ifndef __CYGWIN__
     // cppcheck-suppress ignoredReturnValue
     // cppcheck-suppress nullPointer
     ferror(0);
+#endif
     // cppcheck-suppress nullPointer
     (void)ftell(0);
     // cppcheck-suppress nullPointer
diff --git a/test/cfg/std.cpp b/test/cfg/std.cpp
index bf562812f..61e43bcfe 100644
--- a/test/cfg/std.cpp
+++ b/test/cfg/std.cpp
@@ -26,6 +26,7 @@
 #include <istream>
 #include <fstream>
 #include <vector>
+#include <cstdarg>
 
 void bufferAccessOutOfBounds(void)
 {