--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/ccutil/tprintf.cpp	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,84 @@
+/**********************************************************************
+ * File:        tprintf.cpp
+ * Description: Trace version of printf - portable between UX and NT
+ * Author:      Phil Cheatle
+ *
+ * (C) Copyright 1995, Hewlett-Packard Ltd.
+ ** 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.
+ *
+ **********************************************************************/
+
+// Include automatically generated configuration file if running autoconf.
+#ifdef HAVE_CONFIG_H
+#  include "config_auto.h"
+#endif
+
+#include "tesserrstream.h"
+#include "tprintf.h"
+
+#include "params.h"
+
+#include <climits> // for INT_MAX
+#include <cstdarg>
+#include <cstdio>
+
+namespace tesseract {
+
+INT_VAR(log_level, INT_MAX, "Logging level");
+
+static STRING_VAR(debug_file, "", "File to send tprintf output to");
+
+// File for debug output.
+FILE *debugfp;
+
+// Set output for log messages.
+// The output is written to stderr if debug_file is empty.
+// Otherwise it is written to debug_file.
+// It is possible to switch between stderr and debug_file output:
+// tprintf("write to configured output\n");
+// debug_file = "";
+// tprintf("write to stderr\n");
+// debug_file = "/tmp/log";
+// tprintf("write to /tmp/log\n");
+// debug_file = "";
+// tprintf("write to stderr\n");
+FILE *get_debugfp() {
+  if (debug_file.empty()) {
+    // Write to stderr.
+    if (debugfp != stderr && debugfp != nullptr) {
+      fclose(debugfp);
+    }
+    debugfp = stderr;
+  } else if (debugfp == stderr || debugfp == nullptr) {
+    // Write to file.
+#ifdef _WIN32
+    if (debug_file == "/dev/null") {
+      // Replace /dev/null by nul for Windows.
+      debug_file = "nul";
+    }
+#endif
+    debugfp = fopen(debug_file.c_str(), "wb");
+  }
+  return debugfp;
+}
+
+// Trace printf.
+void tprintf(const char *format, ...) {
+  FILE *f = get_debugfp();
+  va_list args;           // variable args
+  va_start(args, format); // variable list
+  vfprintf(f, format, args);
+  va_end(args);
+}
+
+TessErrStream tesserr;
+
+} // namespace tesseract