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| author | Yann E. MORIN <yann.morin.1998@free.fr> | 2012-05-15 11:15:50 +0000 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2012-05-16 10:39:32 +0200 |
| commit | cb30e130519fcb50e1a2e0d7a02aa628e52ed24c (patch) | |
| tree | eb40552335524af7341f2fb9ae112bde745b81fb | |
| parent | 9950d485cd8c16dc84d2e9eca5f4f586c1b717c5 (diff) | |
| download | buildroot-novena-cb30e130519fcb50e1a2e0d7a02aa628e52ed24c.tar.gz buildroot-novena-cb30e130519fcb50e1a2e0d7a02aa628e52ed24c.zip | |
toolchain/crosstool-NG: disable decimal floats
Decimal floats were introduced circa gcc-4.2 or -4.3, and requires
the floating-point environement fenv.h in the C library.
The uClibc .config file used by crosstool-NG to build uClibc is the
same as used by the internal buildroot mechanism, and explcitly
disables fenv support.
The quick workaround is to simply disable decimal floats in all
crosstool-NG config files.
In the long run, it might be better to check this situation, and/or
add code and/or options in crosstool-NG to handle this (but it is
much more involved, and this workaround is sane).
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
3 files changed, 6 insertions, 6 deletions
diff --git a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc index cbad52a65..58cdff2d3 100644 --- a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc +++ b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc @@ -294,8 +294,8 @@ CT_CC_LANG_CXX=y # gcc other options # CT_CC_ENABLE_CXX_FLAGS="" -CT_CC_CORE_EXTRA_CONFIG_ARRAY="" -CT_CC_EXTRA_CONFIG_ARRAY="" +CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float" +CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float" CT_CC_STATIC_LIBSTDCXX=y # diff --git a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc index e57a91dfc..db724ab40 100644 --- a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc +++ b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc @@ -294,8 +294,8 @@ CT_CC_LANG_CXX=y # gcc other options # CT_CC_ENABLE_CXX_FLAGS="" -CT_CC_CORE_EXTRA_CONFIG_ARRAY="" -CT_CC_EXTRA_CONFIG_ARRAY="" +CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float" +CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float" CT_CC_STATIC_LIBSTDCXX=y # diff --git a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc index c1150965a..5f1ee7ea8 100644 --- a/toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc +++ b/toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc @@ -293,8 +293,8 @@ CT_CC_LANG_CXX=y # gcc other options # CT_CC_ENABLE_CXX_FLAGS="" -CT_CC_CORE_EXTRA_CONFIG_ARRAY="" -CT_CC_EXTRA_CONFIG_ARRAY="" +CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float" +CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float" CT_CC_STATIC_LIBSTDCXX=y # |