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https://issues.apache.org/jira/browse/HADOOP-17196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka resolved HADOOP-17196.
------------------------------------
Fix Version/s: 3.4.0
3.3.1
3.2.2
Hadoop Flags: Reviewed
Resolution: Fixed
Merged the PR into trunk, branch-3.3, and branch-3.2. Thanks [~gautham] for
your contribution!
> Compilation warnings caused by non-standard flags
> -------------------------------------------------
>
> Key: HADOOP-17196
> URL: https://issues.apache.org/jira/browse/HADOOP-17196
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Affects Versions: 3.1.3
> Environment: Windows 10 Pro 64-bit
> Reporter: Gautham Banasandra
> Priority: Major
> Fix For: 3.2.2, 3.3.1, 3.4.0
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> The C/C++ language standard is not specified in a cross-compiler manner. Even
> though it's as straight forward as passing *-std* as compiler arguments, not
> all the values are supported by all the compilers. For example, compilation
> with the Visual C++ compiler on Windows with *-std=gnu99* flag causes the
> following warning -
> {code:java}
> cl : command line warning D9002: ignoring unknown option '-std=gnu99'
> [Z:\hadoop-hdfs-project\hadoop-hdfs-native-client\target\native\main\native\libhdfs-examples\hdfs_read.vcxproj]
> {code}
> Thus, we need to use the appropriate flags provided by CMake to specify the
> C/C++ standards so that it is compiler friendly.
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