Building Qt-6.2.3 on Windows has troubles with tiff

[SteveHa]

Hi everyone,
To build Qt6, I am following the instructions at here:
https://doc.qt.io/qt-6/windows-building.html

• This is the configure command:

..\src\configure.bat ^
-prefix "D:\Qt\6.2.3\install" ^
-shared -release -platform win32-msvc -opensource -confirm-license -make libs ^
-nomake tools -nomake examples -nomake tests -opengl desktop -nomake manual-tests -nomake benchmarks ^
-skip webengine -skip qtandroidextras -skip qtdoc -skip qtqa -skip qtgamepad -skip qtlocation -skip qtmacextras -skip qtsql -skip qtmultimedia -skip qtpurchasing -skip qtscxml -skip qtspeech -skip qttranslations -skip qtvirtualkeyboard -skip qtwebchannel -skip qtwebengine -skip qtwebsockets -skip qtwebview -skip qtwinextras -skip qtx11extras -skip tiff -skip qtquickcontrols ^
-skip qtsensors -skip qtserialbus -skip qtserialport -skip qtconnectivity -skip qtscript -skip qtwayland ^
-no-feature-imageformat_ppm -no-feature-imageformat_xbm -no-feature-tiff ^

Here is the output related to the tiff:

Image formats:
    GIF .................................. yes
    ICO .................................. yes
    JPEG ................................. yes
      Using system libjpeg ............... no
    PNG .................................. yes
      Using system libpng ................ no
	  
Further Image Formats:
  JasPer ................................. no
  MNG .................................... no
  TIFF ................................... yes
    Using system libtiff ................. no
  WEBP ................................... yes
    Using system libwebp ................. no


-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_qtquickcontrols
    BUILD_qtscript
    BUILD_tiff

• Then I build:
  cmake --build . --parallel

After building a while, the output shown as below:

Creating library qtbase\plugins\imageformats\qtiff.lib and object qtbase\plugins\imageformats\qtiff.exp
tif_pixarlog.c.obj : error LNK2019: unresolved external symbol deflate referenced in function PixarLogEncode
tif_zip.c.obj : error LNK2001: unresolved external symbol deflate
tif_pixarlog.c.obj : error LNK2019: unresolved external symbol deflateEnd referenced in function PixarLogCleanup
tif_zip.c.obj : error LNK2001: unresolved external symbol deflateEnd
tif_pixarlog.c.obj : error LNK2019: unresolved external symbol inflate referenced in function PixarLogDecode
tif_zip.c.obj : error LNK2001: unresolved external symbol inflate

... 

tif_zip.c.obj : error LNK2001: unresolved external symbol inflateInit_
qtbase\plugins\imageformats\qtiff.dll : fatal error LNK1120: 9 unresolved externals
[54/5264] Building CXX object qtdeclarative\src\qml\CMakeFiles\Qml.dir\compiler\qv4instr_moth.cpp.obj
ninja: build stopped: subcommand failed.

Another clue is that the "tiff" folder doesn't appears inside folder D:\Qt\6.2.3\src\qtbase\src\3rdparty, though there are libjpeg, libpng, etc in there.

For me, with or without tiff does not matter, I just want to build complete.
So, I don't know what steps were wrong.

[SteveHa]

I have solved the issue.

After cleaning the output cache, configure generated correct output, "tiff" is no longer detected:

Further Image Formats:
  JasPer ................................. no
  MNG .................................... no
  TIFF ................................... no
    Using system libtiff ................. no
  WEBP ................................... yes
    Using system libwebp ................. no

[SteveHa]

I have another issue related to zlib and zstd.

When run the configure, the output shows zlib and many other libs are missing as below.

-- Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR) (Required is at least version "1.0.8")
-- Could NOT find WrapZLIB (missing: WrapZLIB_FOUND) (Required is at least version "1.0.8")
-- Could NOT find ZSTD: Found unsuitable version "", but required is at least "1.3" (found ZSTD_LIBRARY-NOTFOUND)
...

My question is how can I tell the configure to search zlib and others from my custom folders for libraries's headers and libs?

Thanks.

[jsulm]

@SteveHa You can pass -I INCLUDE_PATH and -L LIB_PATH to configure command.
Also, you can check what parameters it supports passing it -h parameter.

[SteveHa]

@jsulm Thank you for your answer. I did it before posting the question here but it didn't work. I suppose the path relates to ZLIB_LIBRARY and ZLIB_INCLUDE_DIR, but I don't know what the proper way to set those variables.

[jsulm]

@SteveHa said in Building Qt-6.2.3 on Windows has troubles with tiff:

proper way to set those variables

If those are environment variables then on Windows do this in the terminal where you build Qt:

set ZLIB_LIBRARY=PATH_TO_ZLIB_LIBS
set ZLIB_INCLUDE_DIR=PATH_TO_ZLIB_INCLUDES

[SteveHa]

@jsulm Unfortunately I have not configured successfully with "set ZLIB_ .." way, but I retried with your first recommendation using "-I " and "-L" (did it after cleaning all the output) I got errors as below:

ERROR: Feature "system_zlib": Forcing to "ON" breaks its condition:
    WrapZLIB_FOUND
Condition values dump:
    WrapZLIB_FOUND = "FALSE"

Note that I didn't specify WrapZlib in the configure's parameters.
Could you tell me the way to fix the conflict?

[SteveHa]

I walked around the issue by specifying "-qt-zlib" instead of "-system-zlib".
Customizing building Qt is really hard.
Thanks @jsulm .