From cb30e130519fcb50e1a2e0d7a02aa628e52ed24c Mon Sep 17 00:00:00 2001 From: "Yann E. MORIN" Date: Tue, 15 May 2012 11:15:50 +0000 Subject: [PATCH] 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 CC: Thomas Petazzoni Signed-off-by: "Yann E. MORIN" Signed-off-by: Peter Korsgaard --- toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc | 4 ++-- toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc | 4 ++-- toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc | 4 ++-- 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 cbad52a654..58cdff2d34 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 e57a91dfc6..db724ab40c 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 c1150965a9..5f1ee7ea8b 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 # -- 2.30.2