From 5c804e1ac835acdc4d7a17f654d5fc86b5a95c6d Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Wed, 23 Oct 2019 18:23:31 +0200
Subject: [PATCH] Better getentropy() usability checks

---
 configure    | 9 ++++-----
 configure.ac | 9 ++++-----
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/configure b/configure
index bb26c755..46e2e521 100755
--- a/configure
+++ b/configure
@@ -19145,12 +19145,11 @@ int
 main ()
 {
 
-#ifdef __APPLE__
-# error getentropy() is currently disabled on Apple operating systems
-#endif
-
 unsigned char buf;
-(void) getentropy((void *) &buf, 1U);
+
+if (&getentropy != NULL) {
+  (void) getentropy((void *) &buf, 1U);
+}
 
   ;
   return 0;
diff --git a/configure.ac b/configure.ac
index 152c7c0d..a996c20e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -848,12 +848,11 @@ unsigned char buf;
 # error A recent libasan version on an old system may intercept nonexistent functions
 #endif
 ]], [[
-#ifdef __APPLE__
-# error getentropy() is currently disabled on Apple operating systems
-#endif
-
 unsigned char buf;
-(void) getentropy((void *) &buf, 1U);
+
+if (&getentropy != NULL) {
+  (void) getentropy((void *) &buf, 1U);
+}
   ]])],
   [AC_MSG_RESULT(yes)
    AC_CHECK_FUNCS([getentropy])],