[hadoop] branch branch-2.10 updated: HADOOP-17569. Building native code fails on Fedora 33. (#2886)

[iw...@apache.org]

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iwasakims pushed a commit to branch branch-2.10
in repository https://gitbox.apache.org/repos/asf/hadoop.git


The following commit(s) were added to refs/heads/branch-2.10 by this push:
     new 6ca95819e9c HADOOP-17569. Building native code fails on Fedora 33. (#2886)
6ca95819e9c is described below

commit 6ca95819e9c62a3183ce932b9fc47ad399c4a7f6
Author: Masatake Iwasaki <iw...@apache.org>
AuthorDate: Thu Apr 15 21:33:18 2021 +0900

    HADOOP-17569. Building native code fails on Fedora 33. (#2886)
    
    (cherry picked from commit 2717203f858ff654de0fc01cfb9afef2e705e33c)
---
 hadoop-common-project/hadoop-common/src/main/native/src/exception.c | 4 ++--
 hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt    | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/hadoop-common-project/hadoop-common/src/main/native/src/exception.c b/hadoop-common-project/hadoop-common/src/main/native/src/exception.c
index fc072e8002b..a25cc3d3b7e 100644
--- a/hadoop-common-project/hadoop-common/src/main/native/src/exception.c
+++ b/hadoop-common-project/hadoop-common/src/main/native/src/exception.c
@@ -111,8 +111,8 @@ jthrowable newIOException(JNIEnv* env, const char *fmt, ...)
 const char* terror(int errnum)
 {
 
-#if defined(__sun)
-// MT-Safe under Solaris which doesn't support sys_errlist/sys_nerr
+#if defined(__sun) || defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 32)
+// MT-Safe under Solaris or glibc >= 2.32 not supporting sys_errlist/sys_nerr
   return strerror(errnum); 
 #else
   if ((errnum < 0) || (errnum >= sys_nerr)) {
diff --git a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt
index 14b62e795bc..72559410949 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs-native-client/src/CMakeLists.txt
@@ -65,6 +65,8 @@ if(WIN32)
     set(OUT_DIR bin)
 else()
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
+    # using old default behavior on GCC >= 10.0
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fcommon")
     set(OS_DIR ${CMAKE_SOURCE_DIR}/main/native/libhdfs/os/posix)
 
     # IMPORTANT: OUT_DIR MUST be relative to maven's


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