Thanks Tim!
That did it!
After targetting MPFR_LIB and GMP_LIB to pyledger, I get libpyledger.so that
imports cleanly.
However, I now get a RunTimeError on read_journal when I try the following
code
Type "help", "copyright", "credits" or "license" for more information.
>>> import libpyledger as ledger
>>> ledger.read_journal("sample.dat")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
RuntimeError: No default scope in which to read journal file
'"/tmp/sample.dat"'
Using the same sample.dat file with the ledger binary works fine.
Any ideas?
Thanks,
cb
On Friday, June 21, 2013 10:09:46 PM UTC-7, Tim Crews wrote:
>
> On Friday, June 21, 2013 9:44:04 PM UTC-7, c b wrote:
>>
>>
>> I got a libpyledger.so, but upon doing an import libpyledger in python,
>> I get the following error
>>
>> ImportError: ./libpyledger.so: undefined symbol: __gmpq_add
>>
>> Any ideas about this? I have absolutely no idea about this since I'm not
>> a C++ programmer.
>>
>> Thanks,
>> cb
>>
>> That's a promising development. I'm surprised that simply changing the
> name in the BOOST_PYTHON_MODULE macro had this effect.
>
> __gmpq_add is one of the functions from the GMP library (one of ledger's
> dependencies), so it looks like this library did not get linked into
> libpyledger.so. Unfortunately, that's actually a CMake issue, not a C++
> issue, and CMake is almost a complete mystery to me. Nevertheless, I'll
> risk saying something ignorant in the hopes it might help you along.
>
> In the top-level CMakeLists.txt, it defines a macro named
> add_ledger_library_dependencies, and you can see it adding MPFR_LIB and
> GMP_LIB dependencies to the passed-in target. This macro is used in
> src/CMakeLists.txt to set "ledger" as the target that these dependencies
> are added to.
>
> So, I think you need to use similar directives to add the same
> dependencies to your python module library. In src/CMakeLists.txt, after
> you use add_library to create a pyledger library, I think you should try
>
> target_link_libraries(pyledger, ${MPFR_LIB}
> target_link_libraries(pyledger, ${GMP_LIB}
>
> Tim Crews
>
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