+#if defined(OPENSSL_SYS_WINDOWS)
+# define strcasecmp _stricmp
+# define strncasecmp _strnicmp
+#elif defined(OPENSSL_SYS_VMS)
+/* VMS below version 7.0 doesn't have strcasecmp() */
+# include "o_str.h"
+# define strcasecmp OPENSSL_strcasecmp
+# define strncasecmp OPENSSL_strncasecmp
+#elif defined(OPENSSL_SYS_OS2) && defined(__EMX__)
+# define strcasecmp stricmp
+# define strncasecmp strnicmp
+#elif defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
+# define strcasecmp stricmp
+# define strncasecmp strnicmp
+#else
+# ifdef NO_STRINGS_H
+ int strcasecmp();
+ int strncasecmp();
+# else
+# include <strings.h>
+# endif /* NO_STRINGS_H */
+#endif
+
+#if defined(OPENSSL_SYS_OS2) && defined(__EMX__)
+# include <io.h>
+# include <fcntl.h>
+# define NO_SYSLOG
+#endif
+
+/* vxworks */
+#if defined(OPENSSL_SYS_VXWORKS)
+#include <ioLib.h>
+#include <tickLib.h>
+#include <sysLib.h>
+
+#define TTY_STRUCT int
+
+#define sleep(a) taskDelay((a) * sysClkRateGet())
+
+#include <vxWorks.h>
+#include <sockLib.h>
+#include <taskLib.h>
+
+#define getpid taskIdSelf
+
+/* NOTE: these are implemented by helpers in database app!
+ * if the database is not linked, we need to implement them
+ * elswhere */
+struct hostent *gethostbyname(const char *name);
+struct hostent *gethostbyaddr(const char *addr, int length, int type);
+struct servent *getservbyname(const char *name, const char *proto);
+
+#endif
+/* end vxworks */
+