TIME_UTC definition conflicts with boost-library's header

[Atsushi WATANABE <atusi_w at roboken dot esys dot tsukuba dot ac dot jp>]

Hi,

I'm using glibc development source from git repository.
I have a problem around ISO C11 definitions in time.h (added in commit
7a270350a9bc3110cd5ba12bbd8c5c8c365e0032) when I use boost-thread library.

In glibc/time/time.h, TIME_UTC is defined as:

	# ifdef __USE_ISOC11
	/* Time base values for timespec_get.  */
	# define TIME_UTC 1
	# endif

And in boost/thread/xtime.hpp, TIME_UTC is defined as:

	namespace boost {
	
	enum xtime_clock_types
	{
	    TIME_UTC=1
	...

So these definitions conflict in compiling user source.

One of the way to avoid this is define TIME_UTC by "enum{TIME_UTC=1}" in
time.h. In this case, each definitions belongs to another namespace in
the view of c++ compiler.

I'm not sure it is glibc issue or boost issue.
Does anyone have smart method to use latest glibc and boost with
avoiding this problem?

Thanks,
Atsushi Watanabe


# Example code which failed to be compiled by g++:

	#include <boost/thread/thread.hpp>
	main()
	{
	}