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From: Anton Blanchard <anton@ozlabs.org>
To: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Stephane Eranian <eranian@google.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] perf jit: Fix build issue on Ubuntu
Date: Thu, 13 Oct 2016 13:20:43 +1100	[thread overview]
Message-ID: <1476325243-15788-1-git-send-email-anton@ozlabs.org> (raw)

From: Anton Blanchard <anton@samba.org>

When building on Ubuntu 16.04, I get the following error:

Makefile:49: *** the openjdk development package appears to me missing, install and try again.  Stop.

The problem is that update-java-alternatives has multiple spaces between
fields, and cut treats each space as a new delimiter:

java-1.8.0-openjdk-ppc64el     1081       /usr/lib/jvm/java-1.8.0-openjdk-ppc64el

Fix this by using awk, which handles this fine.

Signed-off-by: Anton Blanchard <anton@samba.org>
---
 tools/perf/jvmti/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/jvmti/Makefile b/tools/perf/jvmti/Makefile
index 5ce61a1..df14e6b 100644
--- a/tools/perf/jvmti/Makefile
+++ b/tools/perf/jvmti/Makefile
@@ -36,7 +36,7 @@ SOLIBEXT=so
 # The following works at least on fedora 23, you may need the next
 # line for other distros.
 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
-JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
 else
   ifneq (,$(wildcard /usr/sbin/alternatives))
     JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
-- 
2.7.4

             reply	other threads:[~2016-10-13  2:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-13  2:20 Anton Blanchard [this message]
2016-10-13  7:41 ` Stephane Eranian
2016-10-17 14:53 ` [tip:perf/urgent] " tip-bot for Anton Blanchard

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