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build-system: fix failing installer builds

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Both for Windows and macOS the installers actually didn't work correctly.

It turns out that the nifty trick (which is the officially documented way of
doing this) for setting up Qt5 OR Qt6 doesn't actually set up all of the
variables correctly - at least not on Windows and macOS.

Instead of trying to figure out why that part is failing, I decided to simply
immediately re-run the find_package for Qt5 if we don't find Qt6.

In the Windows case there was an additional problem: A very subtle typo where a
Qt5 turned into a Qt (which alone would have broken things).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2022-03-22 22:28:22 -07:00
parent b4e56ebef1
commit a363ad0910
1 changed files with 10 additions and 2 deletions
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12
CMakeLists.txt
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@ -174,7 +174,11 @@ include_directories(.
)
# figure out which version of Qt we are building against
find_package(QT NAMES Qt6 Qt5 COMPONENTS Widgets REQUIRED)
# in theory this should get us all the variables set up correctly, but that
# ended up failing in subtle ways to do what was advertized; in the Qt5 case
# some of the variables didn't get set up, so we'll immediately call it again
# for Qt5
find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core Widgets)
# right now there are a few things that don't work with Qt6
# let's disable them right here and remember our Qt version
@ -189,9 +193,13 @@ if(QT_VERSION_MAJOR STREQUAL "6")
set(NO_PRINTING ON)
set(NO_USERMANUAL ON)
else()
# as mentioned above, since some variables appear to fail to populate
# on some platforms, simply run this again the 'old' way
find_package(Qt5 REQUIRED COMPONENTS Core Widgets)
set(USINGQT6 OFF)
set(QT5OR6 "5")
set(QT_VERSION ${Qt5_VERSION})
set(QT_INSTALL_PREFIX ${_qt5Core_install_prefix})
# for Qt5 we want the Location component (which is missing so far in Qt6)
LIST(APPEND QT_EXTRA_COMPONENTS Location)
endif()
@ -613,7 +621,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
if(NOT QT_VERSION VERSION_LESS 5.11.0)
# hack to work around the fact that we don't process the dependencies of plugins
# as of Qt 5.11 this additional DLL is needed and it's only referenced in the qml DLLs
install(FILES ${QT_INSTALL_PREFIX}/bin/QtPositioningQuick.dll DESTINATION ${WINDOWSSTAGING})
install(FILES ${QT_INSTALL_PREFIX}/bin/Qt5PositioningQuick.dll DESTINATION ${WINDOWSSTAGING})
endif()
if(NOT DEFINED MAKENSIS)