[cvsnt-dev] compiling mdns_apple.cpp on Mac OS X

[Jens Miltner]

Am 12.01.2007 um 11:26 schrieb Antonio Patane':

> What you want????

What I want? I wanted to start a discussion on how to properly solve  
this problem, since I couldn't come up with the "perfect" solution.
Didn't realize this was not clear from my message....

</jum>

>
>
> ----- Original Message ----- From: "Jens Miltner" <jum at mac.com>
> To: <cvsnt-dev at cvsnt.org>
> Sent: Friday, January 12, 2007 11:04 AM
> Subject: [cvsnt-dev] compiling mdns_apple.cpp on Mac OS X
>
>
>> Is anybody else having this problem:
>> When I try to build cvsnt, I get errors while compiling   
>> mdns_apple.cpp due to confliciting definitions of constants:
>>> apple/mdns_apple.cpp:36: error: conflicting declaration   
>>> 'kDNSServiceClass_IN'
>>> /usr/include/dns_sd.h:144: error: 'kDNSServiceClass_IN' has a   
>>> previous declaration as '<anonymous enum> kDNSServiceClass_IN'
>>> apple/mdns_apple.cpp:37: error: conflicting declaration   
>>> 'kDNSServiceType_A'
>>> /usr/include/dns_sd.h:149: error: 'kDNSServiceType_A' has a   
>>> previous declaration as '<anonymous enum> kDNSServiceType_A'
>>> apple/mdns_apple.cpp:38: error: conflicting declaration   
>>> 'kDNSServiceType_AAAA'
>>> /usr/include/dns_sd.h:176: error: 'kDNSServiceType_AAAA' has a   
>>> previous declaration as '<anonymous enum> kDNSServiceType_AAAA'
>>> apple/mdns_apple.cpp:39: error: conflicting declaration   
>>> 'kDNSServiceType_SRV'
>>> /usr/include/dns_sd.h:181: error: 'kDNSServiceType_SRV' has a   
>>> previous declaration as '<anonymous enum> kDNSServiceType_SRV'
>> Sure enough, the source file contains this definition:
>>> #ifdef __APPLE__
>>> // Bizarrely, OSX doesn't define these...
>>> enum
>>> {
>>>     kDNSServiceClass_IN       = 1,      /* Internet */
>>>     kDNSServiceType_A         = 1,      /* Host address. */
>>>     kDNSServiceType_AAAA      = 28,     /* Ip6 Address. */
>>>     kDNSServiceType_SRV       = 33,     /* Server Selection. */
>>> };
>>> #endif
>> However, in my system configuration (Mac OS X 10.4.7, Xcode  
>> 4.1), / usr/include/dns_sd.h DOES contain the constant  
>> definitions, so these  are duplicates, which gcc-4.0 doesn't seem  
>> to like a lot...
>> So far I've been working around this by disabling mdns support,  
>> but I  really think this should be solved somehow by either  
>> conditionally  defining the constants in mdns_apple.cpp only if  
>> it's not defined by  the system (would need some macro to test  
>> for, either from the system  headers, or defined from the  
>> configure script, both of which I have  no idea about) or,  
>> alternatively, require the latest SDKs for  building csvnt (also  
>> probably not the perfect solution).
>> Since I'm using the "build-mac-multi" script in the osx directory,  
>> I  wonder whether anybody else is having the same problem.
>> </jum>
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