Gautham Banasandra created HDFS-16665:
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Summary: Fix duplicate sources for hdfspp_test_shim_static
Key: HDFS-16665
URL: https://issues.apache.org/jira/browse/HDFS-16665
Project: Hadoop HDFS
Issue Type: Bug
Components: libhdfs++
Affects Versions: 3.4.0
Environment: Windows 10
Reporter: Gautham Banasandra
Assignee: Gautham Banasandra
The library target *hdfspp_test_shim_static* is built using the following
sources, which causes duplicate symbols to be defined -
1. hdfs_shim.c
2. ${LIBHDFSPP_BINDING_C}/hdfs.cc
https://github.com/apache/hadoop/blob/8774f178686487007dcf8c418c989b785a529000/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/CMakeLists.txt#L153
And fails the compilation -
{code}
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
: error LNK2005: hdfsAllowSnapshot already defined in
hdfspp_test_shim_static.lib(hdfs.obj)
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
: error LNK2005: hdfsAvailable already defined in
hdfspp_test_shim_static.lib(hdfs.obj)
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
: error LNK2005: hdfsBuilderConfSetStr already defined in
hdfspp_test_shim_static.lib(hdfs.obj)
H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
: error LNK2005: hdfsBuilderConnect already defined in
hdfspp_test_shim_static.lib(hdfs.obj)
{code}
Duplicate symbols defined by hdfs_shim.c -
https://github.com/apache/hadoop/blob/440f4c2b28515d2007b81ac00b549bbf14fa9f64/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/hdfs_shim.c#L583-L585.
Adding the source *${LIBHDFSPP_BINDING_C}/hdfs.cc* is redundant here since this
file is transitively included in hdfs_shim.c through *libhdfspp_wrapper.h* -
https://github.com/apache/hadoop/blob/440f4c2b28515d2007b81ac00b549bbf14fa9f64/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/hdfs_shim.c#L20.
Thus, we need to exclude *${LIBHDFSPP_BINDING_C}/hdfs.cc* to fix this issue.
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