From 5a47084235c004a21328c7348a68401c944aa81d Mon Sep 17 00:00:00 2001
From: Joerg Sonnenberger <joerg@bec.de>
Date: Thu, 29 Sep 2016 21:10:38 +0000
Subject: [PATCH] Make HAVE_DECL_ARC4RANDOM always defined. Sort the entry
 correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282768 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Config/config.h.cmake | 7 ++++---
 lib/Support/Unix/Process.inc       | 4 ++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index f6fd4e5977f..143e1dcf3c7 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -16,9 +16,6 @@
 /* Define if position independent code is enabled */
 #cmakedefine ENABLE_PIC
 
-/* Define to 1 if you have the `arc4random' function. */
-#cmakedefine HAVE_DECL_ARC4RANDOM ${HAVE_DECL_ARC4RANDOM}
-
 /* Define to 1 if you have the `backtrace' function. */
 #cmakedefine HAVE_BACKTRACE ${HAVE_BACKTRACE}
 
@@ -34,6 +31,10 @@
 /* can use __crashreporter_info__ */
 #undef HAVE_CRASHREPORTER_INFO
 
+/* Define to 1 if you have the declaration of `arc4random', and to 0 if you
+   don't. */
+#cmakedefine01 HAVE_DECL_ARC4RANDOM
+
 /* Define to 1 if you have the declaration of `FE_ALL_EXCEPT', and to 0 if you
    don't. */
 #cmakedefine01 HAVE_DECL_FE_ALL_EXCEPT
diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc
index d81836b92da..d4c4b86d498 100644
--- a/lib/Support/Unix/Process.inc
+++ b/lib/Support/Unix/Process.inc
@@ -429,7 +429,7 @@ const char *Process::ResetColor() {
   return "\033[0m";
 }
 
-#if !defined(HAVE_DECL_ARC4RANDOM) || !HAVE_DECL_ARC4RANDOM
+#if !HAVE_DECL_ARC4RANDOM
 static unsigned GetRandomNumberSeed() {
   // Attempt to get the initial seed from /dev/urandom, if possible.
   int urandomFD = open("/dev/urandom", O_RDONLY);
@@ -455,7 +455,7 @@ static unsigned GetRandomNumberSeed() {
 #endif
 
 unsigned llvm::sys::Process::GetRandomNumber() {
-#if defined(HAVE_DECL_ARC4RANDOM) && HAVE_DECL_ARC4RANDOM
+#if HAVE_DECL_ARC4RANDOM
   return arc4random();
 #else
   static int x = (static_cast<void>(::srand(GetRandomNumberSeed())), 0);
-- 
2.50.1