1 files changed, 4 insertions, 3 deletions

diff --git a/src/lib/libcrypto/uid.c b/src/lib/libcrypto/uid.c
index b5b61b76d4..d3d249c36f 100644
--- a/src/lib/libcrypto/uid.c
+++ b/src/lib/libcrypto/uid.c
@@ -54,17 +54,18 @@
  */
 
 #include <openssl/crypto.h>
+#include <openssl/opensslconf.h>
 
 #if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2)
 
-#include <unistd.h>
+#include OPENSSL_UNISTD
 
 int OPENSSL_issetugid(void)
         {
         return issetugid();
         }
 
-#elif defined(WIN32)
+#elif defined(OPENSSL_SYS_WIN32)
 
 int OPENSSL_issetugid(void)
         {
@@ -73,7 +74,7 @@ int OPENSSL_issetugid(void)
 
 #else
 
-#include <unistd.h>
+#include OPENSSL_UNISTD
 #include <sys/types.h>
 
 int OPENSSL_issetugid(void)