[Development] Getting build flags for platforms without pkg-config

[Konstantin Tokarev]

31.10.2017, 01:03, "Konstantin Tokarev" <annulen at yandex.ru>:
> 31.10.2017, 00:56, "Thiago Macieira" <thiago.macieira at intel.com>:
>>  On segunda-feira, 30 de outubro de 2017 09:46:42 PDT jeandet wrote:
>>>   > AFAIK there no technical reason why providing .pc files for MSVC and
>>>   > macOS
>>>   > frameworks would be impossible.
>>>
>>>   I agree, I would add that and even without pkg-config parsing pc files
>>>   seems more reasonable than parsing pri files.
>>
>>  I don't see how one is more difficult than the other, technically speaking.
>>  They're both just a bunch of assignments, though the .pri file seems to depend
>>  on some variables not defined in the file, but which can be easily inferred.
>>
>>  The two important details, though:
>>  1) pkg-config is a standardised file format, the .pri isn't
>
> Also there is a possibility that in future qmake will be removed, and there will
> be no more .pri files.

Oh, and I forgot to mention elephant in the room: .pri is not self contained, you also
need to parse .prl to get Libs.private

>
>>  2) the .pri file has the list of plugin types, to help static building and the
>>  *deployqt tools.
>
> Missing information like this can be added to .pc as custom variables, which
> could be queried via pkg-config (or parsed directly from .pc).
>
>>  $ cat mkspecs/modules/qt_lib_network.pri lib/pkgconfig/Qt5Network.pc
>>  QT.network.VERSION = 5.10.0
>>  QT.network.name = QtNetwork
>>  QT.network.module = Qt5Network.t
>>  QT.network.libs = $$QT_MODULE_LIB_BASE
>>  QT.network.includes = $$QT_MODULE_INCLUDE_BASE $$QT_MODULE_INCLUDE_BASE/
>>  QtNetwork
>>  QT.network.frameworks =
>>  QT.network.bins = $$QT_MODULE_BIN_BASE
>>  QT.network.plugin_types = bearer
>>  QT.network.depends = core
>>  QT.network.uses =
>>  QT.network.module_config = v2
>>  QT.network.DEFINES = QT_NETWORK_LIB
>>  QT.network.enabled_features = networkinterface bearermanagement ftp http
>>  localserver networkdiskcache networkproxy sctp socks5 ssl udpsocket
>>  QT.network.disabled_features = opensslv11
>>  QT_CONFIG += networkinterface bearermanagement ftp getifaddrs http ipv6ifname
>>  localserver networkdiskcache networkproxy sctp socks5 ssl udpsocket
>>  QT_MODULES += network
>>  prefix=/home/tjmaciei/obj/qt/qt5/qtbase
>>  exec_prefix=${prefix}
>>  libdir=${prefix}/lib
>>  includedir=${prefix}/include
>>
>>  Name: Qt5 Network
>>  Description: Qt Network module
>>  Version: 5.10.0
>>  Libs: -L${libdir} -lQt5Network.t
>>  Cflags: -I${includedir}/QtNetwork -I${includedir}
>>  Requires: Qt5Core
>>
>>  --
>>  Thiago Macieira - thiago.macieira (AT) intel.com
>>    Software Architect - Intel Open Source Technology Center
>>
>>  _______________________________________________
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>>  Development at qt-project.org
>>  http://lists.qt-project.org/mailman/listinfo/development
>
> --
> Regards,
> Konstantin
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-- 
Regards,
Konstantin