Removed HAVE_UNISTD_H

configure.ac

@@ -249,7 +249,7 @@ AC_FUNC_MMAP
 dnl Check for structures:
 AC_CHECK_MEMBERS([struct stat.st_blksize])
 dnl Checks for header files:
-AC_CHECK_HEADERS([malloc.h unistd.h sys/time.h],,,[AC_INCLUDES_DEFAULT])
+AC_CHECK_HEADERS([malloc.h sys/time.h],,,[AC_INCLUDES_DEFAULT])
 AX_EXECINFO
 dnl Checks for the availability of functions:
 AC_CHECK_FUNCS([mallinfo pwrite])

src/cdi_util.c

@@ -2,9 +2,7 @@
 #include "config.h"
 #endif
 
-#ifdef HAVE_UNISTD_H
 #include <unistd.h>
-#endif
 
 #include <limits.h>
 #include <stdio.h>

src/file.c

@@ -10,9 +10,7 @@
 #include "config.h"
 #endif
 
-#ifdef HAVE_UNISTD_H
 #include <unistd.h>
-#endif
 
 #include <assert.h>
 #include <ctype.h>