I am in the process of building Python 3.4 from source using emscripten.
After successfully installing emscripten and setting up a build folder outside the source tree, I have followed these steps:
Ran configure:
$ emconfigure ../Python-3.4.3/configure --without-threads --without-pymalloc --enable-shared --disable-ipv6 --build=i686-linux-gnuNoticed a conflict between LONG_BIT in ../Python-3.4.3/Include/pyport.h and the
#define SIZEOF_LONGdefined in emscripten headers, so commented out the check in ../Python-3.4.3/Include/pyport.hSuccessfully ran configure, then executed
emmmake makein my build folderVerified that the built python file is LLVM bytecode by running
file python. Proceeded to link libpython3.4.so with the bytecode using:
$ llvm-link libpython3.4.so python -o python.bcEncountered the following error message:
ERROR: Linking globals named '_Py_open_cloexec_works': symbol multiply defined!
Despite confirming that the symbol is not multiply defined in the source code:
$ grep -rnw ../Python-3.4.3 -e "_Py_open_cloexec_works" --include=\*.{c,h}
../Python-3.4.3/Python/fileutils.c:33:int _Py_open_cloexec_works = -1;
../Python-3.4.3/Python/fileutils.c:784: atomic_flag_works = &_Py_open_cloexec_works;
../Python-3.4.3/Modules/posixmodule.c:7702:extern int _Py_open_cloexec_works;
../Python-3.4.3/Modules/posixmodule.c:7725: int *atomic_flag_works = &_Py_open_cloexec_works;
../Python-3.4.3/Modules/_io/fileio.c:210:extern int _Py_open_cloexec_works;
../Python-3.4.3/Modules/_io/fileio.c:232: int *atomic_flag_works = &_Py_open_cloexec_works;
Attempting to use nm on libpython3.4.so resulted in an error message:
nm: libpython3.4.so: File format not recognised
Feeling stuck now and seeking assistance to resolve the linkage issues.
[[ Additional Info ]]
- clang version 3.6.0
- LLVM version 3.6.0svn