PMNGIOS-978 [platform] Fix visibility warning, remove not needed armv…

…7 arch and update to OpenCV 4.6.0

Makefile

@@ -3,3 +3,7 @@ build_3_4_6:
 
 build_4_5_2:
 	Scripts/opencv_xcframework.sh build_4_5_2
+
+build_4_6_0:
+	Scripts/opencv_xcframework.sh build_4_6_0
+

scripts/opencv_xcframework.sh

@@ -16,7 +16,7 @@ build_xcframework() {
 
     python3 "${BUILD_DIR}/${VERSION}/platforms/apple/build_xcframework.py" \
         --build_only_specified_archs \
-        --iphoneos_archs arm64,armv7 \
+        --iphoneos_archs arm64 \
         --iphonesimulator_archs arm64,x86_64 \
         --out "${OUTPUT_DIR}" \
         "$@"
@@ -35,6 +35,16 @@ patch_xcframework_remove_symlinks() {
     done
 }
 
+# Disable iOS visibility warnings
+# See: https://github.com/opencv/opencv/issues/7565#issuecomment-555549631
+disable_ios_visibility_warnings() {
+    readonly VERSION="${1}"
+    readonly FILE_TO_PATCH="${BUILD_DIR}/${VERSION}/CMakeLists.txt"
+
+    # Add the OPENCV_SKIP_VISIBILITY_HIDDEN to the first line of the CMakeLists.txt file
+    echo -e "SET(OPENCV_SKIP_VISIBILITY_HIDDEN TRUE)\n$(cat ${FILE_TO_PATCH})" > "${FILE_TO_PATCH}"
+}
+
 build_3_4_6() {
     clone 3.4.6
     clone 4.5.2
@@ -58,5 +68,18 @@ build_4_5_2() {
     patch_xcframework_remove_symlinks
 }
 
+build_4_6_0() {
+    clone 4.6.0
+    disable_ios_visibility_warnings 4.6.0
+
+    # Fix PATH to find python
+    # See: https://github.com/opencv/opencv/issues/21926#issuecomment-1156755364
+    ln -s "$(which python3)" "$(pwd)/${BUILD_DIR}/python"
+    export PATH="$(pwd)/${BUILD_DIR}:${PATH}"
+
+    build_xcframework 4.6.0
+    patch_xcframework_remove_symlinks
+}
+
 rm -rf "${BUILD_DIR}"
 "$@"