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package/boost: Disable fenv support with uClibc

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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>
This commit is contained in:
Bernd Kuhls 2016-02-06 12:51:20 +01:00 committed by Thomas Petazzoni
parent 1b7c45d8a9
commit bbef0a871d
1 changed files with 26 additions and 0 deletions
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26
package/boost/0006-uclibc-fenv.patch Normal file
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@ -0,0 +1,26 @@
Disable fenv.h support for uClibc-based toolchains.
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. Bug was reported upstream:
https://svn.boost.org/trac/boost/ticket/11756
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
--- boost_1_60_0.org/boost/config/platform/linux.hpp 2015-12-08 19:55:19.000000000 +0100
+++ boost_1_60_0/boost/config/platform/linux.hpp 2016-02-06 12:35:25.692754553 +0100
@@ -47,6 +47,13 @@
#endif
//
+// uClibc has no support for fenv.h
+//
+#if defined(__UCLIBC__)
+# define BOOST_NO_FENV_H
+#endif
+
+//
// If glibc is past version 2 then we definitely have
// gettimeofday, earlier versions may or may not have it:
//