From d9ebf0ce0845046cdd0cb40c598072bd1d91362c Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 9 Nov 2021 09:34:23 +0000
Subject: [PATCH] libstdc++: Do not use 64-bit DARN on 32-bit powerpc
 [PR103146]

We need to use the 64-bit DARN to detect failure without bias, but it's
not available in 32-bit mode.

libstdc++-v3/ChangeLog:

	PR libstdc++/103146
	* src/c++11/random.cc: Check __powerpc64__ not __powerpc__.
---
 libstdc++-v3/src/c++11/random.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/src/c++11/random.cc b/libstdc++-v3/src/c++11/random.cc
index 4a553e0..76857e1 100644
--- a/libstdc++-v3/src/c++11/random.cc
+++ b/libstdc++-v3/src/c++11/random.cc
@@ -37,7 +37,7 @@
 # ifdef _GLIBCXX_X86_RDSEED
 #  define USE_RDSEED 1
 # endif
-#elif defined __powerpc__ && defined __BUILTIN_CPU_SUPPORTS__
+#elif defined __powerpc64__ && defined __BUILTIN_CPU_SUPPORTS__
 # define USE_DARN 1
 #endif
 
-- 
2.7.4