pmt: initial 3.0.2 update

include/libgnulib/wcscasecmp-impl.h

@@ -0,0 +1,32 @@
+/* Compare two wide strings ignoring case.
+   Copyright (C) 1999, 2011-2024 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2011.
+
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation, either version 3 of the
+   License, or (at your option) any later version.
+
+   This file is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+int
+wcscasecmp (const wchar_t *s1, const wchar_t *s2)
+{
+  for (;;)
+    {
+      wchar_t wc1 = towlower (*s1++);
+      wchar_t wc2 = towlower (*s2++);
+      if (wc1 != (wchar_t)'\0' && wc1 == wc2)
+        continue;
+      /* Note that wc1 and wc2 each have at most 31 bits.  */
+      return (int)wc1 - (int)wc2;
+             /* > 0 if wc1 > wc2, < 0 if wc1 < wc2,
+                = 0 if wc1 and wc2 are both '\0'.  */
+    }
+}