[PD-dev] Cross Compiling External for Windows - Problem

[Patrice Colet]

Also you might find this template interesting for porting the external:

http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/template/

> Hello, I'm afraid the work to be made isn't in the Makefile but in
> source files,
> 
> did you give a try with this:
> 
> http://readlist.com/lists/lists.sourceforge.net/mingw-users/1/9807.html
> 
> ?
> 
> 
> Colet Patrice
> 
> ----- Mail original -----
> > De: "Thomas Mayer" <thomas at residuum.org>
> > À: pd-dev at iem.at
> > Envoyé: Vendredi 10 Août 2012 10:49:15
> > Objet: [PD-dev] Cross Compiling External for Windows - Problem
> > 
> > Hello,
> > 
> > I try to cross compile my external PuREST JSON for Windows using
> > MXE
> > on
> > Linux. According to their tutorial, a little work is necessary on
> > the
> > Makefile to be able to cross-compile (http://mxe.cc/#tutorial):
> > 
> > -- Start quote --
> > Step 5d: Cross compile your Project (Makefile)
> > 
> > If you have a handwritten Makefile, you probably will have to make
> > a
> > few
> > adjustments to it:
> > 
> > CC=$(CROSS)gcc
> > LD=$(CROSS)ld
> > AR=$(CROSS)ar
> > PKG_CONFIG=$(CROSS)pkg-config
> > 
> > You may have to add a few others, depending on your project.
> > 
> > Then, all you have to do is:
> > 
> > make CROSS=i686-pc-mingw32-
> > 
> > That's it!
> > -- End     quote --
> > 
> > That is, what I tried, and compilation is working, but the linker
> > does
> > not work, and outputs:
> > 
> > i686-pc-mingw32-gcc -shared -o libpurest_json.dll libpurest_json.o
> > -lcurl -ljson -L"/home/thomas/src/Pd-0.42.5-extended/pd-win/src"
> > -L"/home/thomas/src/Pd-0.42.5-extended/pd-win/bin"
> > -L"/home/thomas/src/Pd-0.42.5-extended/pd-win/obj" -lpd -lwsock32
> > -lkernel32 -luser32 -lgdi32 -liberty -lpthread
> > libpurest_json.o: In function `output_json':
> > /home/thomas/src/pd/my-objects/purest_json/libpurest_json.c:145:
> > undefined reference to `s_list'
> > /opt/mxe/usr/lib/gcc/i686-pc-mingw32/4.7.1/../../../../i686-pc-mingw32/lib/libjson.a(printbuf.o):
> > In function `vasprintf':
> > /opt/mxe/tmp-json-c/json-c-0.10/printbuf.c:130: undefined reference
> > to
> > `_vscprintf'
> > /opt/mxe/usr/lib/gcc/i686-pc-mingw32/4.7.1/../../../../i686-pc-mingw32/lib/libmingwex.a(pformat.o):pformat.c:(.text+0x1732):
> > undefined reference to `_get_output_format'
> > collect2: error: ld returned 1 exit status
> > make: *** [libpurest_json.dll] Fehler 2
> > 
> > I have pd.dll in the path
> > /home/thomas/src/Pd-0.42.5-extended/pd-win/bin.
> > 
> > The complete Makefile and input / output of make is at
> > https://gist.github.com/3307768
> > 
> > Here are my questions:
> > Does gcc use the wrong linker (ld instead of i686-pc-mingw32-ld)?
> > Is there a way to force gcc to use the correct linker?
> > Do I something else than pd.dll for linking?
> > 
> > Thanks in advance,
> > Thomas
> > --
> > "Theoretically, [the amount of money in circulation] is watched
> > carefully by clever, serious economists. In practice, all the
> > world's
> > money is one big swirling, whirling pool." (Cory Doctorow - For The
> > Win)
> > http://www.residuum.org/
> > 
> > 
> > _______________________________________________
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> > Pd-dev at iem.at
> > http://lists.puredata.info/listinfo/pd-dev
> >