Hi,

On 10.08.2012 11:20, Patrice Colet wrote:

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

I don't think, this is the problem: There is no MSVC involved in the entire toolchain, but only gcc on Linux, partly using MXE for cross compilation on Linux.

PuREST JSON builds fine in Linux for Linux. The needed libraries build fine in Linux with MXE, the test applications for the libraries work. PuREST JSON compiles fine in Linux with MXE, but linking does not work.

Best regards, Thomas

Colet Patrice

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De: "Thomas Mayer" thomas@residuum.org À: pd-dev@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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