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From "Kumar Ravi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8333) src/contrib/fuse-dfs build fails on non-Sun JVM environments
Date Mon, 30 Apr 2012 16:49:49 GMT
Kumar Ravi created HADOOP-8333:
----------------------------------

             Summary: src/contrib/fuse-dfs build fails on non-Sun JVM environments
                 Key: HADOOP-8333
                 URL: https://issues.apache.org/jira/browse/HADOOP-8333
             Project: Hadoop Common
          Issue Type: Bug
          Components: build
    Affects Versions: 1.0.2
         Environment: IBM Java 6 
            Reporter: Kumar Ravi


src/contrib/fuse-dfs build failure when building in IBM Java 6 environment. The message on
the console when the build aborts is:
 [exec] /usr/bin/ld: cannot find -ljvm
     [exec] collect2: ld returned 1 exit status
     [exec] make[1]: *** [fuse_dfs] Error 1
     [exec] make[1]: Leaving directory `/home/hadoop/branch-1.0_0427/src/contrib/fuse-dfs/src'
     [exec] make: *** [all-recursive] Error 1

The reason this seems to be happening is because of the last line in src/contrib/fuse-dfs/src/Makefile.am

AM_LDFLAGS= -L$(HADOOP_HOME)/build/libhdfs -lhdfs -L$(FUSE_HOME)/lib -lfuse -L$(JAVA_HOME)/jre/lib/$(OS_ARCH)/server
-ljvm

For hadoop to build on IBM Java, this last line should read as follows since this is where
the libjvm library resides

AM_LDFLAGS= -L$(HADOOP_HOME)/build/libhdfs -lhdfs -L$(FUSE_HOME)/lib -lfuse -L$(JAVA_HOME)/jre/lib/$(OS_ARCH)/j9vm
-ljvm

IMO, Changes like the following will need to be made to src/contrib/fuse-dfs/configure.ac
(?) to include changes similar to that in src/native/ to check for the appropriate JVM and
configure the appropriate path for ljvm.

dnl Check for '-ljvm'
JNI_LDFLAGS=""
if test $JAVA_HOME != ""
then
  JNI_LDFLAGS="-L$JAVA_HOME/jre/lib/$OS_ARCH/server"
  JVMSOPATH=`find $JAVA_HOME/jre/ -name libjvm.so | head -n 1`
  JNI_LDFLAGS="$JNI_LDFLAGS -L`dirname $JVMSOPATH`"
fi
ldflags_bak=$LDFLAGS
LDFLAGS="$LDFLAGS $JNI_LDFLAGS"
AC_CHECK_LIB([jvm], [JNI_GetCreatedJavaVMs])
LDFLAGS=$ldflags_bak
AC_SUBST([JNI_LDFLAGS])

# Checks for header files.
dnl Check for Ansi C headers
AC_HEADER_STDC

dnl Check for other standard C headers
AC_CHECK_HEADERS([stdio.h stddef.h], [], AC_MSG_ERROR(Some system headers not found... please
ensure their presence on your platform.))

dnl Check for JNI headers
JNI_CPPFLAGS=""
if test $JAVA_HOME != ""
then
  for dir in `find $JAVA_HOME/include -follow -type d`
  do
    JNI_CPPFLAGS="$JNI_CPPFLAGS -I$dir"
  done
fi






 



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