Solution for Building OpenCV on Termux by Disabling Android SDK and Java Support in CMake

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Expected behaviour

Write here how did you expect the library to function.

Actual behaviour

Write here what went wrong.

Steps to reproduce

• example code
• operating system
• architecture (e.g. x86)
• opencv-python version

Issue submission checklist

• This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
• I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
• The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
• I'm using the latest version of opencv-python

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Problem:

When trying to build OpenCV on Termux, the installation fails because CMake looks for Android SDK and Java tools, which are not available in Termux by default.

Solution:

To solve this issue, you can disable Android and Java support in CMake by using the following settings:

cmake -DANDROID=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_JAVA=OFF -DBUILD_FAT_JAVA_LIB=OFF -DWITH_OPENCL=OFF -DWITH_CUDA=OFF ..

This will allow OpenCV to be installed successfully in Termux without any issues related to missing Android SDK or Java.

Additional Details:

• Operating System: Android (via Termux)
• Architecture: ARM, x86, etc.
• OpenCV Version: [mention the version you tested]

[ab2-g]

Problem:

When trying to build OpenCV on Termux, the installation fails because CMake looks for Android SDK and Java tools, which are not available in Termux by default.

Solution:

To solve this issue, you can disable Android and Java support in CMake by using the following settings:

cmake -DANDROID=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_JAVA=OFF -DBUILD_FAT_JAVA_LIB=OFF -DWITH_OPENCL=OFF -DWITH_CUDA=OFF ..

This will allow OpenCV to be installed successfully in Termux without any issues related to missing Android SDK or Java.

Additional Details:

• Operating System: Android (via Termux)
• Architecture: ARM, x86, etc.
• OpenCV Version: [mention the version you tested]