1.1 --- a/config/libc/uClibc.in.2 Mon Jan 06 20:05:14 2014 +0100
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.
2.1 --- a/scripts/build/libc/uClibc.sh Mon Jan 06 20:05:14 2014 +0100
2.2 +++ b/scripts/build/libc/uClibc.sh Sat Jan 04 16:19:18 2014 +0100
2.3 @@ -315,13 +315,6 @@
2.4 ;;
2.5 esac
2.6 ;;
2.7 - x86)
2.8 - if [ "${CT_ARCH_BITNESS}" = "32" ]; then
2.9 - cat <<-ENDSED
2.10 - s/.*(UCLIBC_HAS_FENV).*/\\1=y/
2.11 - ENDSED
2.12 - fi
2.13 - ;;
2.14 esac
2.15
2.16 # Accomodate for old and new uClibc versions, where the
2.17 @@ -374,6 +367,11 @@
2.18 ENDSED
2.19 ;;
2.20 esac
2.21 + if [ "${CT_LIBC_UCLIBC_FENV}" = "y" ]; then
2.22 + cat <<-ENDSED
2.23 + s/.*(UCLIBC_HAS_FENV).*/\\1=y/
2.24 + ENDSED
2.25 + fi
2.26
2.27 # We always want ctor/dtor
2.28 cat <<-ENDSED