From 495fdb36936208b55699d083e3ef735313eaba7f Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Sat, 22 Jun 2019 17:02:34 +0200
Subject: [PATCH] mshield requires memory protection

---
 src/libsodium/sodium/utils.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/libsodium/sodium/utils.c b/src/libsodium/sodium/utils.c
index e1f04a90..3124ed64 100644
--- a/src/libsodium/sodium/utils.c
+++ b/src/libsodium/sodium/utils.c
@@ -725,6 +725,15 @@ sodium_mprotect_readwrite(void *ptr)
     return _sodium_mprotect(ptr, _mprotect_readwrite);
 }
 
+#ifndef HAVE_PAGE_PROTECTION
+int
+sodium_mshield(void *ptr)
+{
+    (void) ptr;
+    errno = ENOSYS;
+    return -1;
+}
+#else
 int
 sodium_mshield(void *ptr)
 {
@@ -750,6 +759,7 @@ sodium_mshield(void *ptr)
 
     return 0;
 }
+#endif
 
 int
 sodium_munshield(void *ptr)