From: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH] openblas: disable OpenMP
Date: Sun, 20 Nov 2016 17:04:41 +0100 [thread overview]
Message-ID: <20161120160441.29150-1-arnout@mind.be> (raw)
For powerpc (and powerpc only), the openblas build system will enable
USE_OPENMP when threads are enabled. But the toolchain wasn't
necessarily built with OpenMP support. So explicitly disable OpenMP -
for all architectures, not just powerpc, just to keep things simple.
We could have autodetected whether OpenMP is available at configure
time, but that would be more of a feature patch, it's up to upstream
to do that.
Fixes:
http://autobuild.buildroot.net/results/423b5e79cd4342d6c160ed478054b294b0826c6a
http://autobuild.buildroot.net/results/c9e554c8f880b49b3c9203725ac5e6565b7e5c6f
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---
package/openblas/openblas.mk | 3 +++
1 file changed, 3 insertions(+)
diff --git a/package/openblas/openblas.mk b/package/openblas/openblas.mk
index 9583e0e..a26e10a 100644
--- a/package/openblas/openblas.mk
+++ b/package/openblas/openblas.mk
@@ -31,6 +31,9 @@ else
OPENBLAS_MAKE_OPTS += USE_THREAD=0
endif
+# We don't know if OpenMP is available or not, so disable
+OPENBLAS_MAKE_OPTS += USE_OPENMP=0
+
# Static-only/Shared-only toggle
ifeq ($(BR2_STATIC_LIBS),y)
OPENBLAS_MAKE_OPTS += NO_SHARED=1
--
2.10.2
next reply other threads:[~2016-11-20 16:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-20 16:04 Arnout Vandecappelle [this message]
2016-11-21 20:45 ` [Buildroot] [PATCH] openblas: disable OpenMP Thomas Petazzoni
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