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https://issues.apache.org/jira/browse/HADOOP-17196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17561073#comment-17561073
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Gautham Banasandra commented on HADOOP-17196:
---------------------------------------------
[~iwasakims] could you add the flags only for Linux. You can use the following
snippet -
{code}
if (UNIX)
# Add the -std flag.
else (UNIX)
# retain whatever is current.
endif (UNIX)
{code}
> Fix C/C++ standard warnings
> ---------------------------
>
> 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
> Assignee: Gautham Banasandra
> Priority: Major
> Fix For: 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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