qmake for-loop gives empty variable from hand-typed list

Szymon. M. Sabat

I am trying to copy some DLL files from folder full of DLL files with similar names. CVLIBS is the list of filenames I want to copy and there are e.g. opencv_core412d.dll and opencv_core412.dll files for "core", same for highgui etc.
I am getting qmake error "cannot find -lopencv_412d" so it's the LIBS row and LNAME is getting empty string from $$CVLIB. Why?

CVLIBS = core \
        highgui \
        imgproc \
        videoio \
        video \
        imgcodecs

CONFIG(release, debug|release): DDIR = $$OUT_PWD/release
else:CONFIG(debug, debug|release): DDIR = $$OUT_PWD/debug

CONFIG(release, debug|release): SUFF = 412
else:CONFIG(debug, debug|release): SUFF = 412d

ODIR = $$PWD/../../GitHub/opencv/builds/install/x64/vc16/bin

for (CVLIB, CVLIBS)
{
    LNAME = opencv_$$CVLIB$$SUFF
    LIBS += -L$$ODIR -l$$LNAME

    FNAME = $$LNAME.dll
    OFILE = $$BIN/$$FNAME
    DFILE = $$DDIR/$$FNAME
    OFILE ~= s,/,\\,g
    DFILE ~= s,/,\\,g
    QMAKE_POST_LINK += $$QMAKE_COPY $$quote($$OFILE) $$quote($$DFILE) $$escape_expand(\\n\\t)
}

export(QMAKE_POST_LINK)

INCLUDEPATH += $$PWD/../../GitHub/opencv/builds/install/include
DEPENDPATH += $$PWD/../../GitHub/opencv/builds/install/include

SGaist

Hi and welcome to devnet,

Your for line is wrong. It should be:

for (CVLIB, CVLIBS) {
# Your code here
}

qmake's syntax is not the same as C++. You have to have the opening bracket on the same line as the test/loop/etc..