--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/lcms2/utils/common/xgetopt.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,100 @@
+
+//---------------------------------------------------------------------------------
+//
+//  Little Color Management System
+//  Copyright (c) 1998-2023 Marti Maria Saguer
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+//---------------------------------------------------------------------------------
+//
+//    xgetopt.c  -- loosely based on System V getopt()
+//
+//    option ::= SW [optLetter]* [argLetter space* argument]
+//
+
+#include <string.h>
+#include <stdio.h>
+
+int     xoptind = 1;
+char   *xoptarg;
+
+static  char   *nextArg = NULL;
+
+#define SW '-'
+
+
+int xgetopt(int argc, char* argv[], char* optionS)
+{
+    unsigned char ch;
+    char* optP;
+
+    if (argc > xoptind)
+    {
+
+        if (nextArg == NULL)
+        {
+            if ((nextArg = argv[xoptind]) == NULL || *(nextArg++) != SW)  goto end_eof;
+        }
+
+        if ((ch = *(nextArg++)) == 0)
+        {
+            xoptind++;
+            goto end_eof;
+        }
+
+        if (ch == ':' || (optP = strchr(optionS, ch)) == NULL)
+            goto end_error;
+
+        if (*(++optP) == ':')
+        {
+            xoptind++;
+
+            if (*nextArg == 0)
+            {
+                if (argc <= xoptind)  goto  end_error;
+                nextArg = argv[xoptind++];
+            }
+
+            xoptarg = nextArg;
+            nextArg = NULL;
+
+        }
+        else
+        {
+            if (*nextArg == 0)
+            {
+                xoptind++;
+                nextArg = NULL;
+            }
+
+            xoptarg = NULL;
+        }
+
+        return ch;
+    }
+
+end_eof:
+    xoptarg = nextArg = NULL;
+    return EOF;
+
+end_error:
+    xoptarg = NULL;
+    return '?';
+}