Added processor architecture decode case for ARM similar to x86:

    ELSEIF (CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
        SET(_java_libarch "arm")

-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12543798/HADOOP-8764.patch
against trunk revision .

+1 @author. The patch does not contain any @author tags.

-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.

+1 javac. The applied patch does not increase the total number of javac compiler warnings.

+1 javadoc. The javadoc tool did not generate any warning messages.

+1 eclipse:eclipse. The patch built with eclipse:eclipse.

+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

+1 release audit. The applied patch does not increase the total number of release audit warnings.

+1 core tests. The patch passed unit tests in hadoop-common-project/hadoop-common.

+1 contrib tests. The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1399//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1399//console

This message is automatically generated.

+1 lgtm

Btw I created a jenkins job to run on the Apache ARM machines to capture future breakages:

https://builds.apache.org/job/Hadoop-trunk-ARM/

I've committed this and merged to branch-2. Thanks Trevor!

Integrated in Hadoop-Common-trunk-Commit #2682 (See https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2682/)
HADOOP-8764. CMake: HADOOP-8737 broke ARM build. Contributed by Trevor Robinson (Revision 1380984)

Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1380984
Files :

• /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
• /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/JNIFlags.cmake

Integrated in Hadoop-Hdfs-trunk-Commit #2745 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2745/)
HADOOP-8764. CMake: HADOOP-8737 broke ARM build. Contributed by Trevor Robinson (Revision 1380984)

Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1380984
Files :

• /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
• /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/JNIFlags.cmake

Integrated in Hadoop-Mapreduce-trunk-Commit #2706 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2706/)
HADOOP-8764. CMake: HADOOP-8737 broke ARM build. Contributed by Trevor Robinson (Revision 1380984)

Result = FAILURE
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1380984
Files :

• /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
• /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/JNIFlags.cmake

Integrated in Hadoop-Hdfs-trunk #1156 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1156/)
HADOOP-8764. CMake: HADOOP-8737 broke ARM build. Contributed by Trevor Robinson (Revision 1380984)

Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1380984
Files :

• /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
• /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/JNIFlags.cmake

Integrated in Hadoop-Mapreduce-trunk #1187 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1187/)
HADOOP-8764. CMake: HADOOP-8737 broke ARM build. Contributed by Trevor Robinson (Revision 1380984)

Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1380984
Files :

• /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
• /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/JNIFlags.cmake

This patch looks reasonable to me (although I do not have an ARM device to test on).

Thanks for looking at this, Trevor.