[SVN-4818] Failed to build with SWIG 4

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0
• Fix Version/s: trunk, 1.14.1
• Component/s: bindings_swig

Environment

Arch Linux x86_64, SWIG 4.0.0.

• Assignee: Unassigned
• Reporter: Felix Yan
• Created: 31/May/19 06:00
• Updated: 20/Sep/23 22:32
• Resolved: 20/Sep/23 22:32

Description

The Python binding failed to build with an error:

Deprecated command line option: -classic. This option is no longer supported.

 After fixing this (by removing -classic from build.conf), a lot of new errors like below appeared:

subversion/bindings/swig/python/svn_client.c:6201:128: error: ‘svn_argnum_swig_obj’ undeclared (first use in this function); did you mean ‘svn_argnum_obj1’?

After looking up the changelog of SWIG 4, it appears fastunpack becomes default so I added -nofastunpack to get around this.

Next error is inside Ruby bindings:

subversion/bindings/swig/ruby/svn_client.c:1605:21: error: ‘SWIG_POINTER_NO_NULL’ undeclared (first use in this function); did you mean ‘SWIG_POINTER_OWN’?

Looks like the vendored proxy/*.swg files are outdated. I removed some and get passed this one.

Finally it built fine, but I am stuck at the test suite now. The python binding failed to import correctly:

File "/home/felix/projects/arch/packages/subversion/trunk/src/subversion-1.12.0/subversion/bindings/swig/python/libsvn/core.py", line 32, in _swig_setattr_nondynamic
method = class_type._swig_setmethods_.get(name, None)
AttributeError: type object 'svn_auth_cred_simple_t' has no attribute '_swig_setmethods_'

Please let me know how to proceed, thanks!