1.1 --- a/config/libc/uClibc.in.2	Tue May 31 16:27:39 2011 +0200
     1.2 +++ b/config/libc/uClibc.in.2	Sat Jan 04 16:19:18 2014 +0100
     1.3 @@ -65,3 +65,18 @@
     1.4        Say y if you want uClibc to support WCHAR.
     1.5  
     1.6        Maybe this is needed, if you're building a C++-Compiler
     1.7 +
     1.8 +config LIBC_UCLIBC_FENV
     1.9 +    bool
    1.10 +    prompt "Add support for fenv.h"
    1.11 +    default y if ARCH_x86
    1.12 +    help
    1.13 +      fenv.h provides functions to control the floating point environment,
    1.14 +      such as rounding mode, exceptions...
    1.15 +
    1.16 +      For some architectures, fenv.h is incomplete, so is not installed
    1.17 +      by default. x86 is known to have a rather complete fenv.h, so it is
    1.18 +      installed by default only for x86.
    1.19 +
    1.20 +      If you need fenv.h on other architectures, say 'y' here, but you may
    1.21 +      encounter some issues.