Crazy byteswapping thrift patches from david reiss

Reviewed By: ninjitsu

Test Plan: bswap64, holla holla


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665098 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/configure.ac b/lib/cpp/configure.ac
index 9802096..a6d61e8 100644
--- a/lib/cpp/configure.ac
+++ b/lib/cpp/configure.ac
@@ -54,6 +54,8 @@
 
 AC_CHECK_HEADERS([unistd.h])
 
+AC_CHECK_HEADERS([endian.h])
+
 AC_C_INLINE
 
 AX_BOOST_BASE([1.33.1])