Using libspotify .dll/.lib files in MinGW32 compiling pySpotify

Question

Using MinGW32 on a Windows PC I am trying to compile pySpotify. The first error was that libspotify/api.h was missing. I fixed this by copying the appropriate folder from libspotify into C:\MinGW\include. However now dllwrap is now failing with ld linking. The binaries Spotify distribute are libspotify.dll and libspotify.lib. No matter where I put them (pySpotify folder/subfolders, temp build folder/subfolders and MinGW folder/subfolders) or what I name them (.a, .o & .so) it still shows the same error messages.

The pertinent error is:

C:\MinGW\bin\dllwrap.exe -mdll -static --output-lib build\temp.win32-2.7\Release\src\lib_spotify.a --def build\temp.win32-2.7\Release\src\_spotify.def -s build\temp.win32-2.7\Release\src\module.o build\temp.win32-2.7\Release\src\session.o build\temp.win32-2.7\Release\src\link.o build\temp.win32-2.7\Release\src\track.obuild\temp.win32-2.7\Release\src\album.o build\temp.win32-2.7\Release\src\albumbrowser.o build\temp.win32-2.7\Release\src\artist.o build\temp.win32-2.7\Release\src\artistbrowser.o build\temp.win32-2.7\Release\src\search.o build\temp.win32-2.7\Release\src\playlist.o build\temp.win32-2.7\Release\src\playlistcontainer.o build\temp.win32-2.7\Release\src\playlistfolder.o build\temp.win32-2.7\Release\src\image.o build\temp.win32-2.7\Release\src\user.o build\temp.win32-2.7\Release\src\pyspotify.o build\temp.win32-2.7\Release\src\toplistbrowser.o -LC:\Python26\libs -LC:\Python26\PCbuild -lspotify -lpython26 -lmsvcr90 -o build\lib.win32-2.7\spotify\_spotify.pyd
c:/mingw/bin/../lib/gcc/mingw32/4.7.2/../../../../mingw32/bin/ld.exe: cannot find -lspotify
collect2.exe: error: ld returned 1 exit status
dllwrap: gcc exited with status 1
error: command 'dllwrap' failed with exit status 1

bok says on github that:

You need to add the API headers in the include path (add something like -I~\libspotify\include to your compiler options) and the shared library in the library path (add -L~\libspotify\lib to your linker options). This will allow the compiler to find the necessary include files, and your linker to find the necessary binary objects.

However the distutils Extension class seems to be deprecated and hard to find documentation for (I believe this is where custom compiler options need to go). Appreciate that ~ may need changed to %USERPROFILE% or similar. Similarly %PYTHONPATH%\Lib\distutils\distutils.cfg has little documentation beyond the [build] compiler=mingw32 stanza. This makes editing the compile/link commands and their options impossible to change.

How do you compile pySpotify on Windows?

EDIT:

By using Python 2.6 and copying libspotify.dll/libspotify.lib to C:\Python26\PCbuild and renaming them to spotify.dll/libspotify.lib I now receive another error message from ld:

C:\MinGW\bin\dllwrap.exe -mdll -static --output-lib build\temp.win32-2.6\Release\src\lib_spotify.a --def build\temp.win32-2.6\Release\src\_spotify.def -s build\temp.win32-2.6\Release\src\module.o build\temp.win32-2.6\Release\src\session.o build\temp.win32-2.6\Release\src\link.o build\temp.win32-2.6\Release\src\track.obuild\temp.win32-2.6\Release\src\album.o build\temp.win32-2.6\Release\src\albumbrowser.o build\temp.win32-2.6\Release\src\artist.o build\temp.win32-2.6\Release\src\artistbrowser.o build\temp.win32-2.6\Release\src\search.o build\temp.win32-2.6\Release\src\playlist.o build\temp.win32-2.6\Release\src\playlistcontainer.o build\temp.win32-2.6\Release\src\playlistfolder.o build\temp.win32-2.6\Release\src\image.o build\temp.win32-2.6\Release\src\user.o build\temp.win32-2.6\Release\src\pyspotify.o build\temp.win32-2.6\Release\src\toplistbrowser.o -LC:\Python26\libs -LC:\Python26\PCbuild -lspotify -lpython26 -lmsvcr90 -o build\lib.win32-2.6\spotify\_spotify.pyd
_spotify.exp: file not recognized: File format not recognized
collect2.exe: error: ld returned 1 exit status
dllwrap: gcc exited with status 1
error: command 'dllwrap' failed with exit status 1

Answer 1

Not having access to a mingw installation at the moment, I can suggest a few things.

First, ld is known to be picky about order of arguments. Strangely, when I googled for "ld argument order", I got a bunch of pages suggesting that the order doesn't matter, but I have been burned several times by this. I've had the most success with the following argument order:

1. Switches to ld (ie, -Wall)
2. Library search paths (ie, -LPATH)
3. Object files
4. Libraries (ie, -lspotify)

I noticed in your linker output some references to amd64. I'm not sure how you compiled the other object files that you have, but since libspotify is 32-bit on Windows, I'm guessing that mixing 32/64 bit here is not going to work out too well.

The last thing I can think of is that perhaps the dll extension is confusing to ld, have you tried changing the filename to libspotify.so? I know this is kind of a shot in the dark, but otherwise I'm not sure how to help you further.

Answer 2

I guess you are trying to link a 64bit version of pyspotify against a 32bit version of libspotify. Try to rebuild pyspotify adding the -m32 to CFLAGS and CXXFLAGS