From 039cc4809e32aff8798050fa0562e2dbe22b2951 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sat, 20 Apr 2019 17:02:29 +0200
Subject: [PATCH] buffer.hpp: fix build on uclibc

malloc_usable_size is not available on uclibc

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 include/libtorrent/buffer.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/libtorrent/buffer.hpp b/include/libtorrent/buffer.hpp
index 3af5ef24f..785e7cfd8 100644
--- a/include/libtorrent/buffer.hpp
+++ b/include/libtorrent/buffer.hpp
@@ -85,7 +85,7 @@ public:
 
 		// the actual allocation may be larger than we requested. If so, let the
 		// user take advantage of every single byte
-#if defined __GLIBC__ || defined __FreeBSD__
+#if (defined __GLIBC__ && !defined __UCLIBC__) || defined __FreeBSD__
 		m_size = static_cast<difference_type>(::malloc_usable_size(m_begin));
 #elif defined _MSC_VER
 		m_size = static_cast<difference_type>(::_msize(m_begin));