package/boost: Disable fenv support with uClibc
The boost build system does not recognize the fact that fenv.h is an optional module in uClibc and tries to use it even if UCLIBC_HAS_FENV is disabled. This patch disables fenv support completely when compiling with a uClibc-based toolchain. Fixes http://autobuild.buildroot.net/results/160/160e1b98b204148ecf128144826554b6c523931b/ and many others Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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package/boost/0006-uclibc-fenv.patch
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Disable fenv.h support for uClibc-based toolchains.
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The boost build system does not recognize the fact that fenv.h is an
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optional module in uClibc and tries to use it even if UCLIBC_HAS_FENV
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is disabled. This patch disables fenv support completely when compiling
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with a uClibc-based toolchain. Bug was reported upstream:
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https://svn.boost.org/trac/boost/ticket/11756
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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--- boost_1_60_0.org/boost/config/platform/linux.hpp 2015-12-08 19:55:19.000000000 +0100
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+++ boost_1_60_0/boost/config/platform/linux.hpp 2016-02-06 12:35:25.692754553 +0100
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@@ -47,6 +47,13 @@
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#endif
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//
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+// uClibc has no support for fenv.h
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+//
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+#if defined(__UCLIBC__)
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+# define BOOST_NO_FENV_H
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+#endif
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+
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+//
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// If glibc is past version 2 then we definitely have
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// gettimeofday, earlier versions may or may not have it:
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//
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