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https://issues.apache.org/jira/browse/HADOOP-10358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ilya Maykov resolved HADOOP-10358.
----------------------------------
Resolution: Duplicate
Resolving dupe
> libhadoop doesn't compile on Mac OS X
> -------------------------------------
>
> Key: HADOOP-10358
> URL: https://issues.apache.org/jira/browse/HADOOP-10358
> Project: Hadoop Common
> Issue Type: Improvement
> Components: native
> Environment: Mac OS X 10.8.5
> Oracle JDK 1.7.0_51
> Reporter: Ilya Maykov
> Priority: Minor
> Attachments: HADOOP-10358-fix-hadoop-common-native-on-os-x.patch
>
>
> The native component of hadoop-common (libhadoop.so on linux, libhadoop.dylib
> on mac) fails to compile on Mac OS X. The problem is in
> hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/JniBasedUnixGroupsNetgroupMapping.c
> at lines 76-78:
> [exec]
> /Users/ilyam/src/github/apache/hadoop-common/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/security/JniBasedUnixGroupsNetgroupMapping.c:77:26:
> error: invalid operands to binary expression ('void' and 'int')
> [exec] if(setnetgrent(cgroup) == 1) {
> [exec] ~~~~~~~~~~~~~~~~~~~ ^ ~
> There are two problems in the code:
> 1) The #ifndef guard only checks for __FreeBSD__ but should check for either
> one of __FreeBSD__ or __APPLE__. This is because Mac OS X inherits its
> syscalls from FreeBSD rather than Linux, and thus the setnetgrent() syscall
> returns void.
> 2) setnetgrentCalledFlag = 1 is set outside the #ifndef guard, but the
> syscall is only invoked inside the guard. This means that on FreeBSD,
> endnetgrent() can be called in the cleanup code without a corresponding
> setnetgrent() invocation.
> I have a patch that fixes both issues (will attach in a bit). With this
> patch, I'm able to compile libhadoop.dylib on Mac OS X, which in turn lets me
> install native snappy, lzo, etc compressor libraries on my client. That lets
> me run commands like 'hadoop fs -text somefile.lzo' from the macbook rather
> than having to ssh to a linux box, etc.
> Note that this patch only fixes the native build of hadoop-common-project.
> Some other components of hadoop still fail to build their native components,
> but libhadoop.dylib is enough for the client.
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