In the AsPyLib .zip archive the library files which are provided (.dll or .so.1.0) are pre-compiled libraries for 32bits platforms. If you have a 64bits system, in addition to the above steps you must re-compile each library.
In AsPyLib v2.0.0 there are 6 libraries. For Windows they are:
aspylib_v2.0.0\aspylib\lib\astrometry.dll
aspylib_v2.0.0\aspylib\lib\bilinear.dll
aspylib_v2.0.0\aspylib\lib\binning.dll
aspylib_v2.0.0\aspylib\lib\Bspline.dll
aspylib_v2.0.0\aspylib\lib\median.dll
aspylib_v2.0.0\aspylib\lib\sigma_clipping.dll
and for Linux:
aspylib_v2.0.0/aspylib/lib/libastro.so.1.0
aspylib_v2.0.0/aspylib/lib/libbilinear.so.1.0
aspylib_v2.0.0/aspylib/lib/libbinning.so.1.0
aspylib_v2.0.0/aspylib/lib/libbspline.so.1.0
aspylib_v2.0.0/aspylib/lib/libmedian.so.1.0
aspylib_v2.0.0/aspylib/lib/libsigmaclip.so.1.0
To recompile under Windows you can use Code-Blocks v10.05. With the source files, a Code-Blocks project is provided in the AsPyLib archive.
Once Code-Blocks is installed you just have to double-click on the .cbp icon to open the project. Then check the options and compile to re-create the .dll file. Most likely a folder bin\Release\ is created that contains the new .dll. The new .dll must be moved to the upper folder to replace the old one.
Repeat the procedure for each .dll.
To recompile under Linux, you must do the following for each library:
g++ -Wall -fPIC -c *.cpp
g++ -shared -Wl,-soname,libastro.so.1 -o libastro.so.1.0 *.o