win32/win64: added new patch to fix openssl compilation on windows via the mingw64 toolchain.

patches/openssl-1.1.1d-win_fix.patch

@@ -0,0 +1,11 @@
+--- openssl-1.1.1d/crypto/threads_none.c	2019-09-10 06:13:07.000000000 -0700
++++ openssl-1.1.1d-patched/crypto/threads_none.c	2020-03-19 19:58:56.093255300 -0700
+@@ -143,7 +143,7 @@ int openssl_get_fork_id(void)
+ # if defined(OPENSSL_SYS_UNIX)
+     return getpid();
+ # else
+-    return return 0;
++    return 0;
+ # endif
+ }
+ #endif

util/build-win32.sh

@@ -21,6 +21,7 @@ cd ../..
 cd objs/lib/$OPENSSL || exit 1
 #patch -p1 < ../../../patches/openssl-1.1.0j-parallel_build_fix.patch || exit 1
 patch -p1 < ../../../patches/openssl-1.1.1c-sess_set_get_cb_yield.patch || exit 1
+patch -p1 < ../../../patches/openssl-1.1.1d-win_fix.patch || exit 1
 #patch -p1 < ../../../patches/openssl-1.1.1e-sess_set_get_cb_yield.patch || exit 1
 cd ../../..