[MacPorts] #72017: py313-krb5 @0.7.0: OSError: dlopen(libkrb5.so, 6): image not found

[MacPorts]

#72017: py313-krb5 @0.7.0: OSError: dlopen(libkrb5.so, 6): image not found
---------------------------+-------------------------
  Reporter:  barracuda156  |      Owner:  petrrr
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.5
Resolution:                |   Keywords:  snowleopard
      Port:  py313-krb5    |
---------------------------+-------------------------

Comment (by barracuda156):

 Replying to [comment:2 ryandesign]:
 > libkrb5.dylib is shipped with macOS by Apple. However libkrb5.so doesn't
 appear to be, so indeed it seems like this shouldn't work. And if we were
 to want to use MacPorts libraries, then `dlopen` would have to specify the
 absolute path to the library it's opening.
 >
 > We did get this same build failure on the Mac OS X 10.6 i386 buildbot
 worker but it succeeded on macOS 12 arm64 and macOS 13 x86_64 (and was not
 attempted on other builders since the port is marked `platforms {darwin
 any}`) so the build may be going through a different code path on older
 systems.
 >
 > In the 10.6 build I see:
 > {{{
 > Using libkrb5.so as Kerberos module for platform checks
 > }}}
 > whereas on macOS 12 and 13 I see:
 > {{{
 > Using /System/Library/PrivateFrameworks/Heimdal.framework/Heimdal as
 Kerberos module for platform checks
 > }}}
 > This difference probably means that the port shouldn't be `{darwin any}`
 after all. If that's changed, the revision must be increased too.

 I did not notice it is set as `noarch`, that is wrong indeed.

 What worked for me was:
 {{{
         depends_lib-append \
                     port:kerberos5
         build.env-append \
                     KRB5_KRB5CONFIG=${prefix}/bin/krb5-config \
                     KRB5_MAIN_LIB=${prefix}/lib/libkrb5.dylib
 }}}

 Perhaps the same can work for Apple kerberos.

 Heimdal linking failed though:
 {{{
 --->  Building py312-krb5
 Executing:  cd "/opt/local/var/macports/build
 /_opt_local_ppcports_python_py-krb5/py312-krb5/work/krb5-0.7.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12
 -m build --no-isolation --wheel --outdir /opt/local/var/macports/build
 /_opt_local_ppcports_python_py-krb5/py312-krb5/work
 * Getting build dependencies for wheel...
 Using krb5-config at '/opt/local/libexec/heimdal/bin/krb5-config'
 Using /opt/local/libexec/heimdal/lib/libkrb5.dylib as Kerberos module for
 platform checks
 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/pyproject_hooks/_in_process/_in_process.py", line 389, in
 <module>
     main()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/pyproject_hooks/_in_process/_in_process.py", line 373, in
 main
     json_out["return_val"] = hook(**hook_input["kwargs"])
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/pyproject_hooks/_in_process/_in_process.py", line 143, in
 get_requires_for_build_wheel
     return hook(config_settings)
            ^^^^^^^^^^^^^^^^^^^^^
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/setuptools/build_meta.py", line 334, in
 get_requires_for_build_wheel
     return self._get_build_requires(config_settings, requirements=[])
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/setuptools/build_meta.py", line 304, in _get_build_requires
     self.run_setup()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12
 /site-packages/setuptools/build_meta.py", line 320, in run_setup
     exec(code, locals())
   File "<string>", line 209, in <module>
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/ctypes/__init__.py",
 line 379, in __init__
     self._handle = _dlopen(self._name, mode)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
 OSError: dlopen(/opt/local/libexec/heimdal/lib/libkrb5.dylib, 6): Symbol
 not found: _hc_EVP_cc_sha256
   Referenced from: /opt/local/libexec/heimdal/lib/libhcrypto.4.dylib
   Expected in: dynamic lookup


 ERROR Backend subprocess exited when trying to invoke
 get_requires_for_build_wheel
 Command failed:  cd "/opt/local/var/macports/build
 /_opt_local_ppcports_python_py-krb5/py312-krb5/work/krb5-0.7.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12
 -m build --no-isolation --wheel --outdir /opt/local/var/macports/build
 /_opt_local_ppcports_python_py-krb5/py312-krb5/work
 Exit code: 1
 }}}

 To try Heimdal instead of Kerberos, this could be set:
 {{{
         depends_lib-append \
                     port:heimdal
         set heimdal_root \
                     ${prefix}/libexec/heimdal
         build.env-append \
                     KRB5_KRB5CONFIG=${heimdal_root}/bin/krb5-config \
                     KRB5_MAIN_LIB=${heimdal_root}/lib/libkrb5.dylib
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/72017#comment:3>
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