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Summary: mingw <pthread.h> is broken
https://bugzilla.redhat.com/show_bug.cgi?id=599227
Summary: mingw <pthread.h> is broken
Product: Fedora
Version: 13
Platform: All
OS/Version: Linux
Status: NEW
Severity: medium
Priority: low
Component: mingw32-pthreads
AssignedTo: rjones(a)redhat.com
ReportedBy: eblake(a)redhat.com
QAContact: extras-qa(a)fedoraproject.org
CC: lfarkas(a)lfarkas.org, berrange(a)redhat.com,
rjones(a)redhat.com, erik-fedora(a)vanpienbroek.nl,
fedora-mingw(a)lists.fedoraproject.org
Classification: Fedora
Target Release: ---
Description of problem:
The cross-compilation header
/usr/i686-pc-mingw32/sys-root/mingw/include/pthread.h, installed as part of the
mingw32-pthreads package, has several coding bugs.
Version-Release number of selected component (if applicable):
mingw32-pthreads-2.8.0-10.fc13.noarch
How reproducible:
Always
Steps to Reproduce:
1. Try cross-compiling any code that uses localtime_r with a second argument
with side effects, or try calling (localtime_r)(arg1,arg2).
2. Try cross-compiling any project that uses gnulib's <time.h> replacement
header (libvirt is an example project; it includes a ./autobuild.sh script that
will automatically try a mingw cross-compilation, if you have installed a mingw
portablexdr library, although that library is not yet part of fedora).
Actual results:
The definition of localtime_r is broken, because it evaluates the second
argument twice. And, since POSIX allows one to #undef localtime_r, but there
is no localtime_r function in the library, you get a link failure if you bypass
the function-like macro. Finally, the pthreads-win32 library made the mistake
of installing <config.h>, which is asking for namespace collision with most
other autotooled packages.
Expected results:
<pthread.h> should not define any *_r functions, nor should it interfere with a
proper <time.h>. Also, the library should not install <config.h>, but should
instead modify its installed headers to be self-contained.
Additional info:
See this thread on bug-gnulib for more details:
http://lists.gnu.org/archive/html/bug-gnulib/2010-06/msg00007.html
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