[Bug 51129] Function name conflict (ldap_connect) with OpenLDAP 2.5

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51129

--- Comment #3 from Sergio Durigan Junior <sergio.durigan at canonical.com> ---
(In reply to Hans Leidekker from comment #2)
> (In reply to Sergio Durigan Junior from comment #0)
> > Wine installs the "/usr/include/wine/wine/windows/winldap.h" file, which
> > exports the ldap_connect function:
> > 
> > ULONG CDECL ldap_connect(LDAP*,struct l_timeval*);
> > 
> > With the recent OpenLDAP 2.5 release, we now have an "ldap_connection"
> > function being exported by it as well (with a different prototype):
> > 
> > https://git.openldap.org/openldap/openldap/-/blame/OPENLDAP_REL_ENG_2_5_4/
> > include/ldap.h#L1553
> > 
> > This will need to be fixed in order to prevent linking problems with
> > OpenLDAP.
> 
> What linking problem do you see?

OK, let me backtrack a bit.  I'm not familiar with Wine, so apologies for any
misunderstandings here.

I gave it a try and it seems that the "winldap.h" file is supposed to contain
the Windows-specific definitions of OpenLDAP's "ldap.h", am I right?  I gave it
a try here, and I try to include both "winldap.h" and "ldap.h" I get a bunch of
errors due to conflicting definitions:

$ gcc -l:wldap32.dll.so test.c -I/usr/include/wine/wine/windows/
-L/usr/lib/x86_64-linux-gnu/wine/ -lldap
In file included from /usr/include/ldap.h:30,                                   
                 from test.c:3:                                                 
/usr/include/lber.h:212:16: error: redefinition of ‘struct berval’              
  212 | typedef struct berval {                                                 
      |                ^~~~~~                                                   
In file included from test.c:2:                                                 
/usr/include/wine/wine/windows/winldap.h:276:16: note: originally defined here
  276 | typedef struct berval
      |                ^~~~~~
In file included from /usr/include/ldap.h:30,
                 from test.c:3:
/usr/include/lber.h:215:3: error: conflicting types for ‘BerValue’
  215 | } BerValue;
      |   ^~~~~~~~
.... and on it goes

In this case, and IIUC, "winldap.h" is not supposed to be used along with
"ldap.h".  I don't know if Wine offers its own version of libldap for Windows,
but it seems to be the case given the "winldap32.dll.so" shlib.  Is this a
correct assumption?  If it is, then this bug should probably be closed as
invalid (and I apologize for the noise).

Thanks.

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