install of old version of php5-postgresql also installs newest mysql5?

Ryan Schmidt ryandesign at
Tue Feb 9 21:50:14 PST 2010

On Feb 9, 2010, at 23:22, Ryan Schmidt wrote:

> On Feb 9, 2010, at 22:00, awmartin wrote:
>> I don't understand what the Postgre PHP extention has to do with MySQL.
> Shouldn't have anything to do with it. Unless you are using php5 @5.3.0_1+mysql5 or earlier, in which case php5-postgresql depends on php5 which depends on mysql5 which therefore gets updated. php5 @5.3.0_2 moved database support out of the main php5 port and into separate ports like php5-mysql and php5-postgresql.

MacPorts can also sometimes get confused about dependencies. Consider the case when you have php5 @5.3.0_1+mysql5 installed (which depends on mysql5) and also php5 @5.3.0_2 or later (which doesn't) -- only one of these is active, but they're both installed. All mysql5 knows is that it was installed because of php5; it doesn't know which of the php5s brought it in. Basically if you at any time had a php5 that depended on mysql5, MacPorts considers mysql5 a dependency of php5, even if in the mean time you've upgraded to a php5 that no longer depends on mysql5. The workaround is to uninstall all versions of php5, then reinstall the one you want. This will clear out the relationship between php5 and mysql5. (Whew!)

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