[MacPorts] #14164: Describe macports.conf setting buildmakejobs in guide

[MacPorts]

#14164: Describe macports.conf setting buildmakejobs in guide
-------------------------------------+--------------------------------------
 Reporter:  ryandesign at macports.org  |       Owner:  markd at macports.org     
     Type:  enhancement              |      Status:  new                    
 Priority:  Normal                   |   Milestone:  Website & Documentation
Component:  guide                    |     Version:  1.6.0                  
 Keywords:                           |  
-------------------------------------+--------------------------------------
 The guide should describe the macports.conf setting `buildmakejobs`.
 Currently it only says this:

 > '''use_parallel_build'''[[br]][[br]]This keyword is for specifying
 whether or not it is safe for a port to use multiple cpus or multiple
 cores in parallel during its build phase. If a port is declared to be
 builadble [sic] this way, the option -j N may be passed to the make
 command if parallel builds are enabled system-wide. This can be obtained
 by setting buildmakejobs in macports.conf. The integer N refers to the
 number of parallel build threads.

 But this is in the section on writing portfiles. `buildmakejobs` should
 also be mentioned in a section on the conf file. It should also mention
 that setting `buildmakejobs` to 0 will cause MacPorts to automatically
 figure out how many cores or CPUs are in your computer and use that value.

-- 
Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/14164>
MacPorts </projects/macports>
Ports system for Mac OS