Fix static build when configured with --disable-hidden-plt
Fixes BZ #15337. Static builds fail with the following warning: /home/tools/glibc/glibc/nptl/../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:80: undefined reference to `__GI___pthread_unwind' When the source is configured with --disable-hidden-plt. This is because the preprocessor conditional in cancellation.S only checks if the build is for SHARED, whereas hidden_def is defined appropriately only for a SHARED build that will have symbol versioning *and* hidden defs are enabled. The last case is false here.
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@ -1,3 +1,11 @@
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2013-04-04 Siddhesh Poyarekar <siddhesh@redhat.com>
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[BZ #15337]
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* sysdeps/unix/sysv/linux/x86_64/cancellation.S
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[IS_IN_libpthread]
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[SHARED && defined DO_VERSIONING && !defined NO_HIDDEN]: Mark
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__pthread_unwind hidden.
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2013-03-28 Roland McGrath <roland@hack.frob.com>
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* pthread_create.c (start_thread) [!SHARED]:
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@ -22,7 +22,7 @@
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#include "lowlevellock.h"
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#ifdef IS_IN_libpthread
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# ifdef SHARED
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# if defined SHARED && defined DO_VERSIONING && !defined NO_HIDDEN
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# define __pthread_unwind __GI___pthread_unwind
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# endif
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#else
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