Mine

yoswink@(-krillin-) wxwinbug $  g++ wxbug.cpp `wx-config --libs` `wx-config --cxxflags --unicode=no` -o wxbug
/usr/lib/gcc/alpha-unknown-linux-gnu/4.1.1/../../../../alpha-unknown-linux-gnu/bin/ld: warning: creating a DT_TEXTREL in object.
/tmp/cc5j45Tl.o: In function `wxStringBase::wxStringBase(char const*)':
: undefined reference to `wxStringBase::InitWith(char const*, unsigned long, unsigned long)'
/tmp/cc5j45Tl.o: In function `wxStringBase::wxStringBase(char const*)':
: undefined reference to `wxStringBase::InitWith(char const*, unsigned long, unsigned long)'
/tmp/cc5j45Tl.o:(.rodata._ZTV5MyApp[vtable for MyApp]+0xd0): undefined reference to `wxApp::Initialize(int&, char**)'
collect2: ld returned 1 exit status

yoswink@(-krillin-) wxwinbug $  g++ wxbug.cpp `wx-config --libs` `wx-config --cxxflags` -o wxbug
/usr/lib/gcc/alpha-unknown-linux-gnu/4.1.1/../../../../alpha-unknown-linux-gnu/bin/ld: warning: creating a DT_TEXTREL in object.