MinGW-w64: Disabled Winpthreads.

This is done to avoid build failures. How to include thread support
is listed in "Command Explanations" for MinGW-w64 and MinGW-w64-GCC.

introduction/welcome/changelog.xml

@@ -42,6 +42,9 @@
     <listitem>
       <para>October 4th, 2024</para>
       <itemizedlist>
+        <listitem>
+          <para>[Zeckmathederg] - MinGW-w64: Disabled Winpthreads.</para>
+        </listitem>
         <listitem>
           <para>[Zeckmathederg] - GNAT Binary: Fix a symlink issue.</para>
         </listitem>

wine/deps/tc/mingw-w64-gcc.xml

@@ -87,7 +87,6 @@ cd    build-x86_64-mingw-w64 &&
     --target=x86_64-w64-mingw32          \
     --enable-shared                      \
     --disable-multilib                   \
-    --enable-threads=posix               \
     --enable-languages=c,c++ &&
 
 make</userinput></screen>
@@ -143,7 +142,6 @@ cd    build-i686-mingw-w64 &amp;&amp;
     --target=i686-w64-mingw32            \
     --enable-shared                      \
     --disable-multilib                   \
-    --enable-threads=posix               \
     --enable-languages=c,c++ &amp;&amp;
 
 make</userinput></screen>
@@ -308,7 +306,9 @@ rm -v a.exe main.{c,cpp}</userinput></screen>
 
     <para>
 	<parameter>--enable-threads=posix</parameter>: This option enables
-	support for POSIX threads via the winpthreads library.
+	support for POSIX threads via the winpthreads library. Invoke it if
+	you have built <xref linkend="mingw-w64"/> with <parameter>
+	--with-libraries=winpthreads</parameter>.
     </para>
 
     <para>

wine/deps/tc/mingw-w64.xml

@@ -69,7 +69,6 @@ cd build-x86_64
 
 ../configure --prefix=/usr/x86_64-w64-mingw32 \
              --host=x86_64-w64-mingw32        \
-             --with-libraries=winpthreads     \
              --enable-experimental &&
 
 make</userinput></screen>
@@ -95,7 +94,6 @@ cd build-i686
 
 ../configure --prefix=/usr/i686-w64-mingw32 \
              --host=i686-w64-mingw32        \
-             --with-libraries=winpthreads   \
              --enable-experimental &amp;&amp;
 
 make</userinput></screen>
@@ -127,6 +125,9 @@ make</userinput></screen>
     <para>
       <parameter>--with-libraries=winpthreads</parameter>: This option
       builds the winpthreads library, which can enable posix threading.
+      Use it after you have built <xref linkend="mingw-w64-gcc"/> and
+      rebuild that package afterwards with <parameter>
+      --enable-threads=posix</parameter>.
     </para>
 
     <para>