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>
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@ -294,8 +294,8 @@ CT_CC_LANG_CXX=y
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# gcc other options
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#
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CT_CC_ENABLE_CXX_FLAGS=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY=""
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CT_CC_EXTRA_CONFIG_ARRAY=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_STATIC_LIBSTDCXX=y
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#
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@ -294,8 +294,8 @@ CT_CC_LANG_CXX=y
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# gcc other options
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#
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CT_CC_ENABLE_CXX_FLAGS=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY=""
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CT_CC_EXTRA_CONFIG_ARRAY=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_STATIC_LIBSTDCXX=y
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#
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@ -293,8 +293,8 @@ CT_CC_LANG_CXX=y
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# gcc other options
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#
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CT_CC_ENABLE_CXX_FLAGS=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY=""
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CT_CC_EXTRA_CONFIG_ARRAY=""
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CT_CC_CORE_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_EXTRA_CONFIG_ARRAY="--disable-decimal-float"
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CT_CC_STATIC_LIBSTDCXX=y
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#
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