--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/training/set_unicharset_properties.cpp	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,42 @@
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// This program reads a unicharset file, puts the result in a UNICHARSET
+// object, fills it with properties about the unichars it contains and writes
+// the result back to a file.
+
+#include "commandlineflags.h"
+#include "commontraining.h" // CheckSharedLibraryVersion
+#include "tprintf.h"
+#include "unicharset_training_utils.h"
+
+using namespace tesseract;
+
+// The directory that is searched for universal script unicharsets.
+static STRING_PARAM_FLAG(script_dir, "", "Directory name for input script unicharsets/xheights");
+
+int main(int argc, char **argv) {
+  tesseract::CheckSharedLibraryVersion();
+  tesseract::ParseCommandLineFlags(argv[0], &argc, &argv, true);
+
+  // Check validity of input flags.
+  if (FLAGS_U.empty() || FLAGS_O.empty()) {
+    tprintf("Specify both input and output unicharsets!\n");
+    return EXIT_FAILURE;
+  }
+  if (FLAGS_script_dir.empty()) {
+    tprintf("Must specify a script_dir!\n");
+    return EXIT_FAILURE;
+  }
+
+  tesseract::SetPropertiesForInputFile(FLAGS_script_dir.c_str(), FLAGS_U.c_str(), FLAGS_O.c_str(),
+                                       FLAGS_X.c_str());
+  return EXIT_SUCCESS;
+}