Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpq/set_num.c

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+/* mpq_set_num(dest,num) -- Set the numerator of DEST from NUM.
+
+Copyright 1991, 1994, 1995, 2001, 2012, 2015 Free Software Foundation,
+Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+  * 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.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+The GNU MP Library 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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+
+void
+mpq_set_num (mpq_ptr dest, mpz_srcptr num)
+{
+  mp_size_t size = SIZ (num);
+  mp_size_t abs_size = ABS (size);
+  mp_ptr dp;
+
+  SIZ(NUM(dest)) = size;
+  dp = MPZ_NEWALLOC (NUM(dest), abs_size);
+
+  MPN_COPY (dp, PTR(num), abs_size);
+}