Re: ant OSX build problem.

There are two problems here:

  1. unwanted references to UnicodeHelper::encodeWide() etc
  2. reference to _Unwind_Resume

The first should be fixed with a clean build using -Dhas.wchar_t=0 that 
re-runs configure.
The second is because we need to use the g++ linker.

I have re-investigated my previous post, and offer the following simpler 
solution:
I have modified build.xml to add <linker name="g++" /> where it matters, 
and I can then build from clean on my MacBook Pro, with only one manual 
interaction:
> build-shortsocketserver:
>        [cc] Starting dependency analysis for 1 files.
>        [cc] 1 files are up to date.
>        [cc] 0 files to be recompiled from dependency analysis.
>        [cc] 0 total files to be compiled.
>        [cc] Starting link
>        [cc] /usr/bin/ld: can't locate file for: -llog4cxx
>        [cc] collect2: ld returned 1 exit status
This is because the log4cxx shared library was incorrectly built with a 
.so extension, rather than .dylib.
Simply rename it and re-invoke ant; alternatively apply this cpptasks patch
<https://sourceforge.net/tracker/?func=detail&atid=416920&aid=1576280&group_id=36177>

Here's the context diff for my build.xml:

--- build.xml   (revision 463159)
+++ build.xml   (working copy)
@@ -187,6 +187,7 @@
    <property name="project.type" value="msvc6"/>
    <property name="project.dir" value="msvc"/>
    <property name="compiler" value="msvc"/>
+    <linker id="project.linker" name="${compiler}" />

    <!-- Default value for logchar on windows -->
    <property name="logchar" value="wchar_t"/>
@@ -227,6 +228,7 @@
<target name="unix-init" depends="mac-init" if="is-unix">

    <property name="compiler" value="gcc"/>
+    <linker id="project.linker" name="g++" />

    <property name="lib.prefix" value="lib"/>
    <property name="lib.extension" value=".a"/>
@@ -721,6 +723,7 @@
                objdir="${log4cxx.lib.dir}/log4cxx_obj"
                debug="${debug}"
                projectsOnly="${projectsOnly}">
+       <linker refid="project.linker" />
        <fileset dir="${src.dir}" includes="*.cpp" 
excludes="**/iconv_module.cpp"/>
        <fileset dir="${include.dir}" includes="**/*.h"/>
        <includepath path="${include.dir}"/>
@@ -751,6 +754,7 @@
                objdir="${log4cxx.lib.dir}/${example.name}_obj"
                debug="${debug}"
                projectsOnly="${projectsOnly}">
+       <linker refid="project.linker" />
        <fileset dir="${example.src.dir}" includes="${example.includes}"/>
        <includepath path="${include.dir}"/>
        <includepath path="${apr.include.dir}"/>
@@ -854,6 +858,7 @@
                objdir="${log4cxx.lib.dir}/shortsocketserver_obj"
                debug="${debug}"
                projectsOnly="${projectsOnly}">
+       <linker refid="project.linker" />
        <fileset dir="${tests.dir}/src">
           <include name="shortsocketserver.cpp"/>
           <include name="net/socketservertestcase.h"/>
@@ -883,6 +888,7 @@
                objdir="${log4cxx.lib.dir}/log4cxx-test_obj"
                debug="${debug}"
                projectsOnly="${projectsOnly}">
+       <linker refid="project.linker" />
        <fileset dir="${tests.dir}/src" includes="**/*.cpp **/*.h">
             <exclude name="shortsocketserver.cpp"/>
        </fileset>
@@ -921,6 +927,7 @@
                objdir="${log4cxx.lib.dir}/log4cxx-test_obj"
                debug="${debug}"
                projectsOnly="${projectsOnly}">
+       <linker refid="project.linker" />
        <fileset dir="${tests.dir}/src" includes="defaultinit/*.cpp 
main.cpp">
             <exclude name="shortsocketserver.cpp"/>
        </fileset>

Derek

> shai@xxxxxxxxx wrote:
> > Hi
> > I'm trying to build log4cxx on Mac version 10.4.7 but get the following
> > error:
> >
> > ant -Dhas.wchar_t=0
> >
> > .....
> > .....
> > .....
> >
> >
> > build:
> >        [cc] Starting dependency analysis for 144 files.
> >        [cc] 0 files are up to date.
> >        [cc] 144 files to be recompiled from dependency analysis.
> >        [cc] 144 total files to be compiled.
> >        [cc] Starting link
> >        [cc] ld: warning -prebind ignored because 
> > MACOSX_DEPLOYMENT_TARGET
> > environment variable greater or equal to 10.4
> >        [cc] ld: Undefined symbols:
> >        [cc] __Unwind_Resume
> >        [cc] __ZN7log4cxx7helpers13UnicodeHelper10decodeWideERPKwS3_
> >        [cc] __ZN7log4cxx7helpers13UnicodeHelper10encodeWideEjPw
> >        [cc] __ZN7log4cxx7helpers13UnicodeHelper10lengthUTF8Ew
> >        [cc] /usr/bin/libtool: internal link edit command failed
> >
> > BUILD FAILED
> > /Users/shaideljo/repos/src/users/shai-sand/logging-log4cxx/build.xml:723: 
> >
> > gcc failed with return code 1
> >   
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