Code::Blocks OpenCV Build Error

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1

Hello there. I tried to build OpenCV with Code::Blocks (version 20.03) but had the following error.

I used MSYS2 to install MingW and GCC, and I want to build OpenCV 4.6.

This is my GCC version

$ gcc --version
gcc.exe (Rev6, Built by MSYS2 project) 12.2.0
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

And this is the error log from Code::Blocks.

mingw32-make.exe[2]: *** No rule to make target ‘zlib’, needed by ‘bin/libopencv_imgcodecs460.dll’. Stop.
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:2362: modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/all] Error 2
mingw32-make.exe: *** [D:/Cpp_Dev/OpenCV_CodeBlocks/Makefile:165: all] Error 2
mingw32-make.exe[2]: Leaving directory ‘D:/Cpp_Dev/OpenCV_CodeBlocks’
mingw32-make.exe[1]: Leaving directory ‘D:/Cpp_Dev/OpenCV_CodeBlocks’
Process terminated with status 2 (19 minute(s), 51 second(s))
2 error(s), 22 warning(s) (19 minute(s), 51 second(s))

Those are my configuration steps.

Summary

Codeblocks_E2

Summary

Codeblocks_E4

Summary

Codeblocks_E3
Codeblocks_E3750×420 41.8 KB

Seems that something is wrong with ZLIB. I enabled the BUILD_ZLIB option at CMake Gui. I checked the OpenCV source file that I used with CMake Gui and zlib folder exists inside the 3rd party folder. Does anyone know how to fix this error?

2

please. no screenshots of code or errors here (they are all useless),
kindly replace with TEXT, thank you
(your image also does not show the real compile error, which must be a few lines above, please look again !)

we also need to know, which opencv / g++ versions you try to use

4

Hello, I edited my message with appropriate information.

1 Like
5

is WITH_ZLIB=ON , too ? (cmake)

when in doubt, try with a clean build folder
(esp delete cmakecache.txt)

if that does not work, please show complete cmake output

1 Like
6

At CMake, I only have BUILD_ZLIB option also I enabled OPENCV_FORCE_3RDPARTY_BUILD too but it did not work.

CMake GUI generate output:

Summary

ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
Detected processor: AMD64
libjpeg-turbo: VERSION = 2.1.2, BUILD = opencv-4.6.0-libjpeg-turbo
Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
OpenJPEG: VERSION = 2.4.0, BUILD = opencv-4.6.0-openjp2-2.4.0
OpenJPEG libraries will be built from sources: libopenjp2 (version “2.4.0”)
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 AWT JVM)
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
Consider adding OPENCV_ALLOCATOR_STATS_COUNTER_TYPE=int/int64_t according to your build configuration
Registering hook ‘INIT_MODULE_SOURCES_opencv_dnn’: C:/Users/batuh/Downloads/opencv-4.6.0/opencv-4.6.0/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
opencv_dnn: filter out cuda4dnn source code
Excluding from source files list: /modules/dnn/layers/layers_common.rvv.cpp
highgui: using builtin backend: WIN32UI
Found ‘misc’ Python modules from C:/Users/batuh/Downloads/opencv-4.6.0/opencv-4.6.0/modules/python/package/extra_modules
Found ‘mat_wrapper;utils’ Python modules from C:/Users/batuh/Downloads/opencv-4.6.0/opencv-4.6.0/modules/core/misc/python/package
Found ‘gapi’ Python modules from C:/Users/batuh/Downloads/opencv-4.6.0/opencv-4.6.0/modules/gapi/misc/python/package

General configuration for OpenCV 4.6.0 =====================================
Version control: unknown

Platform:
Timestamp: 2022-12-22T18:03:04Z
Host: Windows 10.0.19044 AMD64
CMake: 3.24.1
CMake generator: MinGW Makefiles
CMake build tool: C:/PROGRA~1/CODEBL~1/MinGW/bin/mingw32-make.exe
Configuration: Release

CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (18 files): + SSSE3 SSE4_1
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (33 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: C:/msys64/mingw64/bin/c++.exe (ver 12.2.0)
C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: C:/msys64/mingw64/bin/cc.exe
C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,–gc-sections
Linker flags (Debug): -Wl,–gc-sections
ccache: NO
Precompiled headers: NO
Extra dependencies:
3rdparty dependencies:

OpenCV modules:
To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo stitching ts video videoio
Disabled: world
Disabled by dependency: -
Unavailable: java python2 python3
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO

Windows RT support: NO

GUI: WIN32UI
Win32 UI: YES
VTK support: NO

Media I/O:
ZLib: zlib (ver 1.2.12)
JPEG: build-libjpeg-turbo (ver 2.1.2-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.4.0)
OpenEXR: OpenEXR::OpenEXR (ver 3.1.5)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES

Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (58.134.100)
avformat: YES (58.76.100)
avutil: YES (56.70.100)
swscale: YES (5.9.100)
avresample: YES (4.0.0)
GStreamer: NO
DirectShow: YES

Parallel framework: none

Trace: YES (built-in)

Other third-party libraries:
Lapack: NO
Eigen: YES (ver 3.4.0)
Custom HAL: NO
Protobuf: build (3.19.1)

OpenCL: YES (no extra features)
Include path: C:/Users/batuh/Downloads/opencv-4.6.0/opencv-4.6.0/3rdparty/include/opencl/1.2
Link libraries: Dynamic load

Python (for build): C:/msys64/mingw64/bin/python3.exe

Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO

Install to: D:/Cpp_Dev/OpenCV_Codeblocks/install

Configuring done
Generating done

CMakeError.log

Summary

https://codefile.io/f/xwLbsPeMfL7AwAtnN3Aw

CMakeOutput.log

Summary

https://codefile.io/f/rugCjuVcLQuI1enQp1iu

7

Building with MingW seems to have lots of problems. Fortunately, there are lots of third party builds for it, if you don’t need to build it yourself.

8

Would you please provide me with any examples?

9

rather try to git clone the opencv repo, so the 3rdparty resources are all in the expected place

10

After some trial and error, I found a solution for myself. I am writing my cure down for the people who will check this topic later and they can try what I did.

  1. Installed Code::Blocks using the version that is shipped with MingW (Besides that I did not install anything related to MingW).

  2. Used Git GUI to clone the OpenCV repo.

  3. Built OpenCV from source using CMake GUI by selecting CodeBlocks-Mingw (Haven’t made any changes in the configuration window).

  4. I opened the generated project in Code::Blocks, and build the library and binaries by using Code::Blocks.

  5. Added required paths to Code::Blocks’ compiler options and Windows’ Environmental Variables.

Everything works well but the GCC/G++ shipped with Code::Blocks is 8.1.

I’ll try to find a solution that works with the current GCC and latest Code::Blocks and then I will post it here as a detailed guide. Thanks to everyone who tried to help.