Error when trying to build Tesseract DLL from Scratch on Arch Linux via Cmake

[Danny]

Hello,

I'm currently trying to build a tesseract DLL from Scratch on Arch Linux with cmake.

I've created a Build Folder inside the tesseract folder and executed cmake ..

But when I execute cmake .. I get the following error:

CMake Error at /home/tesseract/build/CMakeFiles/CMakeScratch/TryCompile-LokfWE/cmTC_0b6e5Targets.cmake:21 (set_target_properties):
  The link interface of target "leptonica" contains:

    WebP::webp

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  /home/tesseract/build/CMakeFiles/CMakeScratch/TryCompile-LokfWE/CMakeLists.txt:16 (include)


CMake Error at cmake/CheckFunctions.cmake:34 (try_run):
  Failed to generate test project build system.
Call Stack (most recent call first):
  CMakeLists.txt:409 (check_leptonica_tiff_support)

I have to add that webp is installed on my system.

Any idea as to why this is happening?

Any help would be much appreciated.

Kind regards.

[Zdenko Podobny]

I am lost in your post... 

e.g. DLL is recreated on Windows not on Linux. Are you trying to cross-compile Tesseract?

How did you install Leptonica? Which version? 

What does it mean that "webp is installed on my system" - only runtime?

Can you please provide each step and its output so we can replicate the problem?

Zdenko

št 20. 6. 2024 o 17:47 Danny <d261...@gmail.com> napísal(a):

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[Danny]

Hey,

sorry for any confusion this post may have cause.

Yes, I'm trying to cross-compile Tesseract on Arch Linux for Windows.

I've installed leptonica via the Arch package manager.

Leptonica Version 1.84.1 is installed on my system.

I've also installed webp via the package manager (libwebp on arch)

I've done the following steps to run into this problem:

1. clone the tesseract repository via git clone

2. create a build folder inside the tesseract folder and navigate into it (mkdir build -> cd build)

3. run cmake ..

This is the full output of the cmake ..  on my system:

cmake ..

-- Configuring tesseract version 5.4.1...
-- IPO / LTO supported
-- CMAKE_SYSTEM_PROCESSOR=<x86_64>
-- Found leptonica version: 1.84.1
CMake Error at /home/tesseract/build/CMakeFiles/CMakeScratch/TryCompile-RwJF5R/cmTC_5cec5Targets.cmake:21 (set_target_properties):

  The link interface of target "leptonica" contains:

    WebP::webp

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):

  /home/tesseract/build/CMakeFiles/CMakeScratch/TryCompile-RwJF5R/CMakeLists.txt:16 (include)

CMake Error at cmake/CheckFunctions.cmake:34 (try_run):
  Failed to generate test project build system.
Call Stack (most recent call first):
  CMakeLists.txt:409 (check_leptonica_tiff_support)

I hope these information help.

[Zdenko Podobny]

Cross compiling is tricky you need to know what are you doing and how to solve problems.

Better solution is to use https://github.com/UB-Mannheim/tesseract/wiki

AFAIK `cmake ..` will configure package for current system (e.g. does not cross compile) 

Zdenko

št 20. 6. 2024 o 22:32 Danny <d261...@gmail.com> napísal(a):

To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/75129f09-4252-4c20-ab95-3453809c9803n%40googlegroups.com.