[MacPorts] #46536: qt5-mac-devel submission: provides Qt 5.4.0

[MacPorts]

#46536: qt5-mac-devel submission: provides Qt 5.4.0
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 Reporter:  rjvbertin@…           |      Owner:  macports-tickets@…
     Type:  submission            |     Status:  new
 Priority:  Normal                |  Milestone:
Component:  ports                 |    Version:
 Keywords:  haspatch, submission  |       Port:  qt5-mac-devel
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 I've created a "devel" port that provides Qt 5.4.0, Qt's current "latest
 and greatest" release version.

 In line with my work on qt4-mac and qt5-mac this port can be co-installed
 with qt4-mac (but not qt5-mac, of course).

 The port has a +KDE variant that caters to people working on KF5 but won't
 bite regular users; in fact, it will build Qt in "release with debug info"
 mode, allowing crash reports with useful information into the Qt
 libraries.

 I carried over the patches from 5.3.2 that still applied cleanly, included
 the fix to the standard directories from the KDE-Mac group (currently
 under review for inclusion in Qt), and 2 patches to the build system. One
 makes up for incomplete cmake files created when doing an out-of-tree
 build, the other enables qt5-mac-devel to compile when qt5-mac is
 installed and active. This particular patch *may* not be 100% reliable but
 the 1 time it failed for me it did do its job when I repeated the `port
 build` command. The bug has been signalled and should be under
 investigation.

 This port uses a new version of the qt5 and qmake5 PortGroups; those could
 go away when qt5-mac-devel becomes qt5-mac, or they could remain as the
 PortGroups for qt5-mac devel version.

 NB: the generation of debug info does mean the port takes quite a bit
 longer to build, and you need approx. 28Gb for the build directory
 (installed, the port will take about 400Mb).

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Ticket URL: <https://trac.macports.org/ticket/46536>
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