f01f2cde09
The fenv support provided by glibc on NIOSII and Microblaze is not sufficient for Boost, causing the same build failures as the ones we had with uClibc. To address this, we adapt (and rename) the existing 0006-uclibc-fenv.patch by forcefully disabling fenv support in Boost on NIOSII and Microblaze, in addition to the existing uClibc exclusion. Fixes (for NIOSII): http://autobuild.buildroot.net/results/9b8c5d2cd31d63ae70b41d1434868c83e65b8423/ Fixes (for Microblaze): http://autobuild.buildroot.net/results/0b9db4c5cfd80d75eb620dbf7a6201faed7230a1/ Cc: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
Disable fenv.h in certain configurations
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The boost build system does not properly test whether fenv.h is
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available, and if it is, if it supports all the features used by
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Boost. This causes build failures with uClibc (reported upstream at
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https://svn.boost.org/trac/boost/ticket/11756) but also with glibc on
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specific architectures that don't have a full fenv implementation,
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such as NIOSII or Microblaze.
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To address this, we forcefully disable the use of fenv support in the
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affected configurations.
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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[Thomas: add Microblaze/NIOSII exclusions.]
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Index: b/boost/config/platform/linux.hpp
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===================================================================
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--- a/boost/config/platform/linux.hpp
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+++ b/boost/config/platform/linux.hpp
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@@ -47,6 +47,16 @@
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#endif
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//
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+// uClibc has no support for fenv.h, and also a few architectures
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+// don't have fenv.h support at all (or incomplete support) even with
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+// glibc.
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+
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+//
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+#if defined(__UCLIBC__) || defined(__nios2__) || defined(__microblaze__)
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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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