Hello.
I am trying to extend Python with some C code. I made a trivial
"Hello World" program in C that I am trying to wrap in "boilerplate"
for inclusion in a Python program. But I can't compile the C code. The
C compiler cannot find the required function `Py_BuildValue'.
My C code looks like this:
#include "/usr/include/python2.5/Python.h"
/* Python wrapper for 'main'. */
static PyObject* mpi_main() {
int res = main();
PyObject* retval = (PyObject*)Py_BuildValue("i",res);
}
/* Main. A 'Hello World' function. */
int main() {
printf ("Hello, World. I am a C function.\n");
}
And my error message looks like this:
[ore@localhost Opgave03]$ gcc ctest.c
/tmp/ccH46bs8.o: In function `mpi_main':
ctest.c:(.text+0x1d): undefined reference to `Py_BuildValue'
collect2: ld returned 1 exit status
[ore@localhost Opgave03]$
I searched the newsgroup and found this thread:
http://groups.google.com/group/comp....b836f369bd0042
It recommended that I add the option "-Wl,--export-dynamic" when
calling gcc. That makes no difference. The thread also has some more
stuff that I don't quite understand.
Can anyone help? I am including Python.h, so why does it not find
Py_BuildValue?
Thanks in advance.