From a8a3b93043a1cbcf392cbef568e92ecc0a78d0ce Mon Sep 17 00:00:00 2001
From: Ivan Avdeev <avdeeff@internet.ru>
Date: Mon, 21 Apr 2025 17:33:14 +0300
Subject: [PATCH] Merge pull request #27239 from avdivan:4.x

Android-SDK: check flag IPP package #27239

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
---
 platforms/android/build_sdk.py | 42 +++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

diff --git a/platforms/android/build_sdk.py b/platforms/android/build_sdk.py
index 3a920c78f1..be78722334 100755
--- a/platforms/android/build_sdk.py
+++ b/platforms/android/build_sdk.py
@@ -380,7 +380,40 @@ def get_ndk_dir():
         return android_sdk_ndk_bundle
     return None
 
+def check_cmake_flag_enabled(cmake_file, flag_name, strict=True):
+    print(f"Checking build flag '{flag_name}' in: {cmake_file}")
+    
+    if not os.path.isfile(cmake_file):
+        msg = f"ERROR: File {cmake_file} does not exist."
+        if strict:
+            print(msg)
+            sys.exit(1)
+        else:
+            print("WARNING:", msg)
+            return
 
+    with open(cmake_file, 'r') as file:
+        for line in file:
+            if line.strip().startswith(f"{flag_name}="):
+                value = line.strip().split('=')[1]
+                if value == '1':
+                    print(f"{flag_name}=1 found. Support is enabled.")
+                    return
+                else:
+                    msg = f"ERROR: {flag_name} is set to {value}, expected 1."
+                    if strict:
+                        print(msg)
+                        sys.exit(1)
+                    else:
+                        print("WARNING:", msg)
+                        return
+    msg = f"ERROR: {flag_name} not found in {os.path.basename(cmake_file)}."
+    if strict:
+        print(msg)
+        sys.exit(1)
+    else:
+        print("WARNING:", msg)
+    
 #===================================================================================================
 
 if __name__ == "__main__":
@@ -407,6 +440,7 @@ if __name__ == "__main__":
     parser.add_argument('--no_media_ndk', action="store_true", help="Do not link Media NDK (required for video I/O support)")
     parser.add_argument('--hwasan', action="store_true", help="Enable Hardware Address Sanitizer on ARM64")
     parser.add_argument('--disable', metavar='FEATURE', default=[], action='append', help='OpenCV features to disable (add WITH_*=OFF). To disable multiple, specify this flag again, e.g. "--disable TBB --disable OPENMP"')
+    parser.add_argument('--no-strict-dependencies',action='store_false',dest='strict_dependencies',help='Disable strict dependency checking (default: strict mode ON)')
     args = parser.parse_args()
 
     log.basicConfig(format='%(message)s', level=log.DEBUG)
@@ -485,9 +519,15 @@ if __name__ == "__main__":
         os.chdir(builder.libdest)
         builder.clean_library_build_dir()
         builder.build_library(abi, do_install, args.no_media_ndk)
+        
+        #Check HAVE_IPP x86 / x86_64
+        if abi.haveIPP():
+           log.info("Checking HAVE_IPP for ABI: %s", abi.name)
+           check_cmake_flag_enabled(os.path.join(builder.libdest,"CMakeVars.txt"), "HAVE_IPP", strict=args.strict_dependencies)
 
     builder.gather_results()
-
+   
+    
     if args.build_doc:
         builder.build_javadoc()