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Date: Thu, 12 Jun 2008 15:22:45 -0700 (PDT)
From: "Ian Rogers (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-5871) Cannot build 32bit C libraries on
 X86_64 Linux host
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     [ https://issues.apache.org/jira/browse/HARMONY-5871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ian Rogers updated HARMONY-5871:
--------------------------------

    Attachment: build.out

Thanks Mark, you are quite right that I wasn't defining LDFLAGS - with defining them I still cannot get Harmony r653525 to build with -m32. Attached is the output of the build, the environment variables were:

CXXFLAGS=-w -pipe -ggdb3 -O -fPIC -m32
CFLAGS=-w -pipe -ggdb3 -O -fPIC -m32
LDFLAGS=-w -pipe -ggdb3 -O -fPIC -m32 -shared

The build is of Jikes RVM on a OpenSuSE 10.3 machine. The build can be repeated by:

svn co https://jikesrvm.svn.sourceforge.net/svnroot/jikesrvm/rvmroot/trunk jikesrvm
cd jikesrvm
ant -Dhost.name=x86_64.linux -Dclasslib.provider=Harmony -Dconfig.name=prototype

The script for building Harmony is:

http://jikesrvm.svn.sourceforge.net/viewvc/jikesrvm/rvmroot/trunk/build/components/harmony.xml?revision=14477&view=markup

where line 79 is attempting the build. The properties for an x86_64-linux build are:

http://jikesrvm.svn.sourceforge.net/viewvc/jikesrvm/rvmroot/trunk/build/hosts/x86_64-linux.properties?revision=14477&view=markup

In the attached build output the following patch was applied:

Index: build/components/harmony.xml
===================================================================
--- build/components/harmony.xml        (revision 14478)
+++ build/components/harmony.xml        (working copy)
@@ -77,6 +77,7 @@
       </conditions>
       <sequential>
         <exec executable="${ant.exe}" dir="${harmony.dir}" failonerror="true">
+          <env key="LDFLAGS" value="${shld.args}"/>
           <env key="CFLAGS" value="${c.args}"/>
           <env key="CXXFLAGS" value="${c++.args}"/>
           <arg value="-Dhy.javac.compiler=modern"/>

There is a related Jikes RVM bug tracker:
http://jira.codehaus.org/browse/RVM-527

> Cannot build 32bit C libraries on X86_64 Linux host
> ---------------------------------------------------
>
>                 Key: HARMONY-5871
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5871
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M6
>         Environment: x86_64 GNU/Linux
>            Reporter: Ian Rogers
>            Assignee: Mark Hindess
>         Attachments: build.out
>
>
> I would like to build a 32bit version of Harmony on a x86_64 linux system for a VM with incomplete x86_64 support. Setting the CFLAGS and CXXFLAGS to define -m32 causes a failure during linking the C libraries (not all the components have picked up the CFLAGS). Running the build under linux32 is also unsuccessful.

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