building wx2.6.3 on mac

[Kevin Ollivier]

Hi Armel,

On Nov 11, 2006, at 1:00 PM, Armel Asselin wrote:

>
> 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

This looks like you're adding the output of wx-config to your  
compiler and linker flags before running the compiler tests. If  
that's the case, you don't want to do this if you're creating a  
Universal Binary. The compiler tests do not seem to like the -arch  
ppc and -arch i386 flags, and thus fail even if in actuality there is  
no problem. The solution is to run the tests and only add the wx- 
config compiler and linker flags after the tests complete successfully.

Hope this helps,

Kevin

> Any idea?
>
> Regards
> Armel
>
>
>
>
>
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