#include <GL/freeglut.h>
#include "freeglut_internal.h"
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
# include <errno.h>
#endif
#include <stdarg.h>
-#if HAVE_VPRINTF
+#ifdef HAVE_VFPRINTF
# define VFPRINTF(s,f,a) vfprintf((s),(f),(a))
-#elif HAVE_DOPRNT
+#elif defined(HAVE__DOPRNT)
# define VFPRINTF(s,f,a) _doprnt((f),(a),(s))
#else
# define VFPRINTF(s,f,a)
* Try to get the maximum value allowed for ints, falling back to the minimum
* guaranteed by ISO C99 if there is no suitable header.
*/
-#if HAVE_LIMITS_H
+#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#ifndef INT_MAX
wait.tv_usec = (msec % 1000) * 1000;
err = select( socket+1, &fdset, NULL, NULL, &wait );
-#if HAVE_ERRNO_H
+#ifdef HAVE_ERRNO_H
if( ( -1 == err ) && ( errno != EINTR ) )
fgWarning ( "freeglut select() error: %d", errno );
#endif