1 files changed, 1 insertions, 3 deletions

diff --git a/src/lib/libcrypto/md4/md4.c b/src/lib/libcrypto/md4/md4.c
index 141415ad4d..1b78f667f1 100644
--- a/src/lib/libcrypto/md4/md4.c
+++ b/src/lib/libcrypto/md4/md4.c
@@ -56,6 +56,7 @@
  * [including the GNU Public Licence.]
  */
 
+#include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <openssl/md4.h>
@@ -64,9 +65,6 @@
 
 void do_fp(FILE *f);
 void pt(unsigned char *md);
-#if !defined(_OSD_POSIX) && !defined(__DJGPP__)
-int read(int, void *, unsigned int);
-#endif
 
 int main(int argc, char **argv)
         {