> Hi,
>    when I build hadoop snappy, I always encounter "Cannot run program
> "autoreconf"" error, I have installed snappy at first.
>    Have anyone encountered such question before?
> thanks!

> the whole build message:
> [root@master hadoop-snappy]# mvn package -Dsnappy.prefix=/usr/local/
> [INFO] Scanning for projects...
> [INFO]                                                                    

> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building Hadoop Snappy 0.0.1-SNAPSHOT
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @
> hadoop-snappy ---
> [debug] execute contextualize
> [INFO] Using 'UTF-8' encoding to copy filtered resources.
> [INFO] skip non existing resourceDirectory
> /root/modules/hadoop-snappy/src/main/resources
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @
> hadoop-snappy ---
> [INFO] Compiling 4 source files to
> /root/modules/hadoop-snappy/target/classes
> [INFO]
> [INFO] --- maven-antrun-plugin:1.6:run (compile) @ hadoop-snappy ---
> [INFO] Executing tasks

> main:

> checkpreconditions:

> compilenative:
>     [mkdir] Created dir:
> /root/modules/hadoop-snappy/target/native-src/config
>     [mkdir] Created dir: /root/modules/hadoop-snappy/target/native-src/m4
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 5.366s
> [INFO] Finished at: Tue Jul 10 23:42:20 PDT 2012
> [INFO] Final Memory: 9M/22M
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-antrun-plugin:1.6:run (compile) on project
> hadoop-snappy: An Ant BuildException has occured: The following error
> occurred while executing this line:
> [ERROR] /root/modules/hadoop-snappy/maven/build-compilenative.xml:62:
> Execute failed: java.io.IOException: Cannot run program "autoreconf" (in
> directory "/root/modules/hadoop-snappy/target/native-src"):
> java.io.IOException: error=2, No such file or directory
> [ERROR] -> [Help 1]
> [ERROR]
> [ERROR] To see the full stack trace of the errors, re-run Maven with the
> -e switch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR]
> [ERROR] For more information about the errors and possible solutions,
> please read the following articles:
> [ERROR] [Help 1]
> http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException