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b0ebb0d4
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2019-08-06T23:16:42
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build: Use __register_atfork() only if really available
This is a glibc-specific symbol that has no public declaration. But is
being used by the OpenBSD and this implementation as a hack to avoid
having to link against the pthread library. This interface is at least
included in LSB 5.0 [L], and using pthread_atfork() is otherwise
problematic anyway [P].
[L] <https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib---register-atfork.html>
[P] <http://austingroupbugs.net/view.php?id=851>
One problem is that we were using it whenever __GLIBC__ is defined,
which is supposed to be defined only on an actual glibc, but uClibc
defines that macro, but it does not provide the symbol on its noMMU
variant.
We add a new configure check that will try to link a program that uses
that symbol to make sure it is present.
Closes: !2
Reported-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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3d88c999
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2018-05-15T00:41:26
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Update arc4random() headers from OpenBSD
Split Linux support into its own header separate from the generic Unix
to fix a Linux-specific issue with clone(). Reset rsp to NULL on failure.
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75729394
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2015-12-02T03:08:17
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Unify most arc4random Unix hooks into a single file
The Unix hook should work for most Unix-like systems, move glibc
specific code there and a FreeBSd specific comment, and remove the rest.
Also change the code to always fallback to use the generic Unix code.
This should cover GNU/Hurd and GNU/kFreeBSD among others.
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874a0e51
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2015-09-23T19:39:47
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Update arc4random module from OpenBSD and LibreSSL
Rework arc4random_stir() and arc4random_addrandom() code over the new
internal API, and documentation in the man page. Adapt the code to the
local build system.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=85827
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