Python Cannot install package M2Crypto in virtual env

M

Manofzen

Hello,

I'm trying to install m2crypto in a Python38 virtual env under FreeBSD 13.1 release p6.

Code: 
pip install -v m2crypto

I got a lot of errors such as:

Code: 
SWIG/_m2crypto_wrap.c:9489:19: error: incomplete defintion of type 'struct stack_st'

I read some forums and installed swig, now the errors above disappeared but there is a new one :

Code: 
/usr/include/sys/_types.h:135: Error: CPP #error ""No support for your compiler for stdargs"".

During the installation, the following command creates this error:

Code: 
swig -python -py3 -I/usr/lib/clang/13.0.0/include -I/usr/include -I/path/to/venv/include -I/usr/local/include/python3.8 -I/usr/include/openssl -includeall -modern -builtin -outdir /tmp/pip-install-_8nd1bhg/m2crypto_7769189214e74b43be2fce01ea4d3468/src/M2Crypto -o src/SWIG/_m2crypto_wrap.c src/SWIG/_m2crypto.i

I opened file _types.h which states :

Code: 
#ifdef __GNUCLIKE_BUILTIN_VARARGS
typedef __builtin_va_list       __va_list;      /* internally known to gcc */
#else
#error "No support for your compiler for stdargs"
#endif

I tried to search for this one but the proposed fixes don't work. I tried

Code: 
CFLAGS="-D __GNUCLIKE_BUILTIN_VARARGS" pip install m2crypto --no-binary=m2crypto

or

Code: 
CPPFLAGS="-D __GNUCLIKE_BUILTIN_VARARGS" pip install m2crypto

or

Code: 
env SWIG_FEATURES="-cpperraswarn -includeall -I/usr/include/openssl" pip install m2crypto

But the variables aren't taken into account and the swig command which creates the problem is still the same.

Could someone please help me to solve this?
 
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