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When building opencv4 for android, the compilation and "cmake install" steps succeed.
However, after this, vcpkg will complain that "The folder /include is empty or not present".
This seems to be due to the fact that opencv emits a non standard include folder hierarchy: see below.
set(VCPKG_TARGET_ARCHITECTURE arm)
set(VCPKG_CRT_LINKAGE static)
set(VCPKG_LIBRARY_LINKAGE dynamic)
set(VCPKG_CMAKE_SYSTEM_NAME Android)
set(ANDROID_NDK_HOME $ENV{ANDROID_NDK_HOME})
if ("${ANDROID_NDK_HOME}"MATCHES"^$")
message(FATAL_ERROR"Please set an env variable ANDROID_NDK_HOME pointing to your ndk-bundle folder. For example: export ANDROID_NDK_HOME=/home/your-account/Android/Sdk/ndk-bundle")
endif()
set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE ${ANDROID_NDK_HOME}/build/cmake/android.toolchain.cmake)
set(ANDROID_ABI armeabi-v7a)
# ANDROID_ABI can be : "armeabi-v7a" , "armeabi-v7a with NEON", "arm64-v8a", "x86" or "x86_64"
-- Installing: .../vcpkg/packages/opencv4_android-armeabi-v7a/share/opencv4/copyright
-- Performing post-build validation
The folder /include is empty or not present. This indicates the library was not correctly installed.
The following files are placed in
.../vcpkg/packages/opencv4_android-armeabi-v7a:
.../vcpkg/packages/opencv4_android-armeabi-v7a/README.android
Files cannot be present in those directories.
The following files are placed in
.../vcpkg/packages/opencv4_android-armeabi-v7a/debug:
.../vcpkg/packages/opencv4_android-armeabi-v7a/debug/README.android
Files cannot be present in those directories.
Found 3 error(s). Please correct the portfile:
../vcpkg/ports/opencv4/portfile.cmake
-- Performing post-build validation done
Error: Building package opencv4:android-armeabi-v7a failed with: POST_BUILD_CHECKS_FAILED
-Cut and past the appropriate build messages from the console output.
-Please attach any additional failure logs mentioned in the console output.
When building opencv4 for android, the compilation and "cmake install" steps succeed.
However, after this, vcpkg will complain that "The folder /include is empty or not present".
This seems to be due to the fact that opencv emits a non standard include folder hierarchy: see below.
Host Environment
To Reproduce
(I submitted this PR a few minutes ago)
triplets/android-armeabi-v7a.cmakeDownload and install the android ndk-bundle
Set an env var to the ndk-bundle folder
Failure logs
-Cut and past the appropriate build messages from the console output.
-Please attach any additional failure logs mentioned in the console output.
Additional context
Please note that this issue can only be reproduced after applying a patch on protobuf package for android