building wx2.6.3 on mac

[Armel Asselin]

Hello,

i'd like to build wxWidgets (wxMac 2.6.3) for Universil Binaries [nb: i'd 
like to avoid having to use anything else because this version is quite 
heavily patched]
My Mac is x86 (10.4.5), XCode 2.2.1, g++ 4.0.1 (default g++)

I tried to configure with this:
configure --with-mac --enable-universal_binary --enable-unicode --with-libpng=builtin 
 --with-zlib=builtin --with-libjpeg=builtin --with-regex=builtin --with-expat=builtin 
 --disable-shared --enable-debug --enable-debug_gdb

it works well, and I can even build the samples... but when it comes to my 
own application ./configure, it fails with these errors:
Undefined symbols:
_main

somewhere inside the original configure.ac lines:
# The final lines of the configure script
AC_PROG_CXX
AC_BAKEFILE([m4_include(autoconf_inc.m4)])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

when trying to determine the default output file name of the compiler (on 
conftest.cc generated file, which contains only int main( ) { return 0; })

configure:1893: 
g++ -D__VOSUNICODE -D_UNICODE -D_DEBUG -g -L/Users/armel/ubuild/dbg/wx/lib -isysroot 
/Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386 -framework 
QuickTime -framework IOKit -framework Carbon -framework Cocoa -framework 
System /Users/armel/ubuild/dbg/wx/lib/libwx_macud_stc-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_macud_xrc-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_macud_qa-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_macud_html-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_macud_adv-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_macud_core-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_base_carbonud_xml-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_base_carbonud_net-2.6.a 
/Users/armel/ubuild/dbg/wx/lib/libwx_base_carbonud-2.6.a -framework 
WebKit -lwxregexud-2.6 -lwxexpatd-2.6 -lwxtiffd-2.6 -lwxjpegd-2.6 -lwxpngd-2.6 
 -lwxzlibd-2.6 -lpthread -liconv conftest.cc >&5

Any idea?

Regards
Armel