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From: Justin Cormack <justin@specialbusservice.com>
Newsgroups: gmane.linux.lib.musl.general
Subject: libstdc++ namespace pollution
Date: Tue, 3 Jan 2017 17:44:47 +0000
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Archived-At: <http://permalink.gmane.org/gmane.linux.lib.musl.general/10869>

I have been trying to build a C++ program recently, and came across
the issue that

1. libstdc++ always defines _GNU_SOURCE see
https://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.predefined
2. Musl defines pretty much everything once _GNU_SOURCE is defined

In this case the issue was that the program included <signal.h> and
then the register names REG_RIP etc were #defined as numeric
constants, while the program wanted to use them as names for an enum.

Does anyone have any recommendations (wondering about trying clang
libc++ perhaps)?

Justin