Question

I’m trying to compile my program on Windows via Cygwin with the compilation command:

g++ ping.cpp -I./include -L./lib -lchartdir50

I’m using an API called ChartDirector which draws charts for me. I’ve never linked libraries this way before (usually I do it through Visual Studio), so I’m a little new to this. I’ve got a really large list of errors, so I won’t list them all, but I’ll list one just to clarify the type of linker errors I’m getting:

(.text$_ZN9BaseChartD1Ev[BaseChart::~BaseChart()]+0x4f): undefined reference to ‘_CBaseChart_destroy’

All of these are undefined reference to ‘xxx’ errors.

I’ve got a bunch of header files in ./include and a library called chartdir50.lib in ./lib.

What’s wrong with my compilation line?

Answer 1

Hmm… that’s odd. I’m using a 64-bit system, but for some reason I tried it with the 32-bit library and it compiled. Thanks!