What to do when compiling Hadoop branch 1.2.x returns java.io.IOException: Cannot run program "autoreconf"

Compiling Hadoop branch 1.2.x code in OSX returned exception as below:

create-native-configure:

BUILD FAILED
/Users/avkash/work/hadoop/branch-1.2/build.xml:634: Execute failed: java.io.IOException: Cannot run program “autoreconf” (in directory “/Users/avkash/work/hadoop/branch-1.2/src/native”): error=2, No such file or directory
at java.lang.ProcessBuilder.processException(ProcessBuilder.java:478)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:457)
at java.lang.Runtime.exec(Runtime.java:593)
at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:862)
at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:481)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:495)
at org.apache.tools.ant.taskdefs.ExecTask.runExecute(ExecTask.java:631)
at org.apache.tools.ant.taskdefs.ExecTask.runExec(ExecTask.java:672)
at org.apache.tools.ant.taskdefs.ExecTask.execute(ExecTask.java:498)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.Main.runBuild(Main.java:809)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
Caused by: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.forkAndExec(Native Method)
at java.lang.UNIXProcess.<init>(UNIXProcess.java:53)
at java.lang.ProcessImpl.start(ProcessImpl.java:91)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
… 23 more

Looking src/native there is no “autoconf” shipped with the source so to solve this problem the best option is to install

└─[1] <git:(master✗✈)> brew install automake
==> Installing automake dependency: autoconf
==> Downloading http://ftpmirror.gnu.org/autoconf/autoconf-2.69.tar.gz
######################################################################## 100.0%
==> ./configure –prefix=/usr/local/Cellar/autoconf/2.69
==> make install
🍺 /usr/local/Cellar/autoconf/2.69: 69 files, 2.0M, built in 21 seconds
==> Installing automake
==> Downloading http://ftpmirror.gnu.org/automake/automake-1.14.tar.gz
######################################################################## 100.0%
==> ./configure –prefix=/usr/local/Cellar/automake/1.14
==> make install
🍺 /usr/local/Cellar/automake/1.14: 127 files, 2.5M, built in 7 seconds

Thats all!!

After than just run the following commands to make sure the same exception does not come back:

$ant create-native-configure