35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
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From 4c6367c99461fdd7bd5613483f2582d7f08fba87 Mon Sep 17 00:00:00 2001
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From: Vlad Zakharov <vzakhar@synopsys.com>
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Date: Tue, 28 Feb 2017 17:41:11 +0300
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Subject: [PATCH] arc: define _REENTRANT when -pthread is passed
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The compiler is supposed to have the builtin defined _REENTRANT defined
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when -pthread is passed, which wasn't done on the ARC architecture.
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When _REENTRANT is not passed, the C library will not use reentrant
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functions, and the latest version of ax_pthread.m4 from the
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autoconf-archive will no longer detect that thread support is
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available (see https://savannah.gnu.org/patch/?8186).
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Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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gcc/config/arc/arc.h | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h
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index 611ef54..fdd4b5d 100644
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--- a/gcc/config/arc/arc.h
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+++ b/gcc/config/arc/arc.h
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@@ -93,6 +93,7 @@ along with GCC; see the file COPYING3. If not see
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%{mdsp-packa:-D__Xdsp_packa} %{mcrc:-D__Xcrc} %{mdvbf:-D__Xdvbf} \
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%{mtelephony:-D__Xtelephony} %{mxy:-D__Xxy} %{mmul64: -D__Xmult32} \
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%{mlock:-D__Xlock} %{mswape:-D__Xswape} %{mrtsc:-D__Xrtsc} \
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+%{pthread:-D_REENTRANT} \
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%{mcpu=nps400:-D__NPS400__}"
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#define CC1_SPEC "\
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--
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2.7.4
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