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- Disable fenv.h in certain configurations
- The boost build system does not properly test whether fenv.h is
- available, and if it is, if it supports all the features used by
- Boost. This causes build failures with uClibc (reported upstream at
- https://svn.boost.org/trac/boost/ticket/11756) but also with glibc on
- specific architectures that don't have a full fenv implementation,
- such as NIOSII or Microblaze.
- To address this, we forcefully disable the use of fenv support in the
- affected configurations.
- Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
- [Thomas: add Microblaze/NIOSII exclusions.]
- Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- Index: b/boost/config/platform/linux.hpp
- ===================================================================
- --- a/boost/config/platform/linux.hpp
- +++ b/boost/config/platform/linux.hpp
- @@ -47,6 +47,16 @@
- #endif
-
- //
- +// uClibc has no support for fenv.h, and also a few architectures
- +// don't have fenv.h support at all (or incomplete support) even with
- +// glibc.
- +
- +//
- +#if defined(__UCLIBC__) || defined(__nios2__) || defined(__microblaze__)
- +# define BOOST_NO_FENV_H
- +#endif
- +
- +//
- // If glibc is past version 2 then we definitely have
- // gettimeofday, earlier versions may or may not have it:
- //
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