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From "Joydeep Sen Sarma (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2009) configure script for compiling hadoop native doesn't set lzo lib name correctly
Date Tue, 09 Oct 2007 17:52:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533433
] 

Joydeep Sen Sarma commented on HADOOP-2009:
-------------------------------------------

as i reported - i have already tried this out (retried just in case). On my platform - i only
see libc.so.6 as the required library. 

I am wondering if it is because i don't have .so versions of lz libraries - only .a:
[jssarma@dev046 if]$ ls -l /usr/local/lib/*lzo2*
-rw-r--r--  1 root root 847206 Feb 28  2007 /usr/local/lib/liblzo2.a
-rwxr-xr-x  1 root root    752 Feb 28  2007 /usr/local/lib/liblzo2.la


> configure script for compiling hadoop native doesn't set lzo lib name correctly
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-2009
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2009
>             Project: Hadoop
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.13.1
>         Environment: Fedora, amd64
>            Reporter: Joydeep Sen Sarma
>            Assignee: Arun C Murthy
>
> Looks like this was already reported (but not resolved on the the list): http://tinyurl.com/2rwu6x
> I would like to compile libhadoop on amd64/Fedora and everything seems kosher until I
hit this compile error:
>      [exec] /home/jssarma/fbprojects/hadoop-0.13.1/src/native/src/org/apache/hadoop/io/compress/lzo/LzoCompressor.c:116:
error: syntax error before ',' token
> the line in question is:
>     // Load liblzo2.so                                                              
                     
>     liblzo2 = dlopen(HADOOP_LZO_LIBRARY, RTLD_LAZY | RTLD_GLOBAL);
> seems like this is being set by:
> configure:#define HADOOP_LZO_LIBRARY ${ac_cv_libname_lzo2}
> I tried executing the relevant part of configure by hand:
>   if test -z "`${CC} -o conftest conftest.c -llzo2 2>&1`"; then
>         if test ! -z "`which objdump`"; then
>       ac_cv_libname_lzo2="`objdump -p conftest | grep NEEDED | grep lzo2 | sed 's/\W*NEEDED\W*\(.*\)\W*$/\
> \"\1\"/'`"
> This is not working on my system, since:
> > objdump -p conftest | grep NEEDED                         
>   NEEDED      libc.so.6
> So that would explain the compile error. Editing the configure script manually for now
works.

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