USE_MYSQL / USE_PGSQL buildtime dependency differences

[Marco Steinbach]

Matthew Seaman wrote on 19.06.2014 15:32:
> On 06/19/14 14:04, Marco Steinbach wrote:
>> Mk/bsd.database.mk seems to handle dependencies resulting from the use
>> of USE_PGSQL and USE_MYSQL flags differently.
>>
>> USE_PGSQL pulls in PostgreSQL at buildtime, for both, the client and the
>> server component.  USE_MYSQL seems to only pull anything in at
>> buildtime, if the flag is set to 'client'.
>>
> 
> Lars may have beaten you to the draw as far as icinga2 goes, but for
> anyone else hitting this problem:
> 
> There is the new:
> 
> USES+= 		pgsql
> WANT_PGSQL=	client
> 
> form you can use nowadays. 'client' isn't mentioned in the comments at
> the top of /usr/ports/Mk/Uses/pgsql.mk, but it's clearly there in the
> code, and it seems to work.
> 

Thanks for your suggestion.


I'll quote from my original post for clarification:

[begin quote]

Thus, with USE_MYSQL=server the build of my port breaks by not 
installing anything at buildtime, neither the server nor (more 
importantly) its client slaveport, while USE_MYSQL=client does not 
install the server.

Can I have my cake and eat it by using the USE_MYSQL flags, or do I need 
to revert to using explicit BUILD_DEPENDS / RUN_DEPENDS combinations to 
get the MySQL client in at buildtime in any case ?

[end quote]

My question resulted from a problem with USE_MYSQL, not USE_PGSQL.

There is no documented WANT_PGSQL= flag (in Mk/bsd.database.mk at 
least), since defining USE_PGSQL allways implies installing the client 
in addition to whatever component is listed in the flag.

USE_PGSQL=server results in the client and the server being installed at 
buildtime. USE_PGSQL=yaddayadda (I've actually just tried this to make 
sure) gives you the client, only.

USE_MYSQL=yaddayadda installs the client at buildtime. USE_MYSQL=server 
installs nothing at buildtime (and consequently my build breaks).

My current workaround for situations like these is to use something 
along the lines of:
MYSQL_LIB_DEPENDS= 
libmysqlclient.so:${PORTSDIR}/databases/mysql${MYSQL_VER}-client

But as said, I'd like to have my cake and eat it by using the USE_MYSQL 
flag, since that fits nicely into a single option helper :)

MfG CoCo