[wx-dev] Re: undefined references SelectObject

[Stefan.Neis at t-online.de]

        Hi,

> >  Yes, look up the missing functions in the MSDN -- it has a "Requirements"
> > section which says e.g. "Use ole32.lib" for CoCreateInstance().
>   
> ole32 is still there as you can see in the build log.
>   
> mingw32-g++.exe -LC:\wxWidgets\lib\gcc_lib -LC:\MinGW\lib  -o 
> FileShakeRS.exe .objs_rels\randomc\MERSENNE.o 
> ..objs_rels\randomc\RANCOMBI.o .objs_rels\randomc\RANROTB.o 
> ..objs_rels\main.o    -lwxpng -lcomctl32 -lole32 -loleaut32 -luuid 
> -lwinmm -lwxregexu -lwxmsw29u -lwxzlib

As Vadim already suggested: Simply use the linker command from the
samples.

In this case, the problem is (yet again), that the linker is sensitive
to the _order_ of the libraries as well, not only to which libraries
you enumerate or not.
I.e. if you use -llib2 -llib1, any references from lib1 to functions in
lib2 will (potentially) remain unresolved, while -llib1 -llib2 will work
(and if you have functions in lib1 which reference functions in lib2
_and_ vice versa, you'll need something like -llib1 -llib2 -llib1).

        HTH,
	        Stefan