Hi CMake developers,
as I need to maintain different projects using different Qt versions, I needed
to have a look at FindQt4.cmake.
Based on the path of qmake, I can successfully decide which Qt version is used
(for example using Debian's update-alternatives).
Ex:
/opt/qt4.7 (custom version)
/usr/include/qt4 (default version)
However, even if I set qmake to the directory of the custom version, I see
that cmake uses the headers of the default version.
It seems to me like a regression in commit
0ae8a3405bb32afadda13f43100484e85f7ef74f ("Add qt4/QtCore to help find Qt
headers when cross-compiling.")
qt4/QtCore is found in /usr/include instead of /opt/qt4.7/include, in
contradiction with the qmake information (qmake -query QT_INSTALL_HEADERS).
Corresponding lines in FindQt4.make:
FIND_PATH(QT_QTCORE_INCLUDE_DIR QtCore
HINTS ${qt_headers} ${QT_LIBRARY_DIR}
PATH_SUFFIXES QtCore qt4/QtCore
)
Removing qt4/QtCore fixes the problem, but I guess that the commit was useful
for other reasons :)
So my suggestion is to either revert the commit because it invalidates a
common scenario when using cmake with several Qt installations, or to fix the
FIND_PATH call, making sure that the custom location is found before the
default one.
Any idea?
Best regards,
Benoit.
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