Fix configure to find arc4random via header files.

[oota-llvm.git] / lib / Support / Unix / Process.inc

diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc
index c5778e746b7c1468b17494e117caf88f707c7523..1fc7c969e0c1a392bc4dc7f3c57e81cc92bda562 100644 (file)
--- a/lib/Support/Unix/Process.inc
+++ b/lib/Support/Unix/Process.inc
@@ -343,7 +343,7 @@ const char *Process::ResetColor() {
   return "\033[0m";
 }
 
-#if !defined(HAVE_ARC4RANDOM)
+#if !defined(HAVE_DECL_ARC4RANDOM) || !HAVE_DECL_ARC4RANDOM
 static unsigned GetRandomNumberSeed() {
   // Attempt to get the initial seed from /dev/urandom, if possible.
   if (FILE *RandomSource = ::fopen("/dev/urandom", "r")) {
@@ -364,7 +364,7 @@ static unsigned GetRandomNumberSeed() {
 #endif
 
 unsigned llvm::sys::Process::GetRandomNumber() {
-#if defined(HAVE_ARC4RANDOM)
+#if defined(HAVE_DECL_ARC4RANDOM) && HAVE_DECL_ARC4RANDOM
   return arc4random();
 #else
   static int x = (::srand(GetRandomNumberSeed()), 0);