Tor ./configure fails when --enable-static-libevent and --enable-static-openssl when cross compiling mingw target

Some of the test programs fail to build due to missing symbols provided by bcrypt.dll and iphlpapi.dll which are normally resolved when building libevent.dll

Possible fix:

diff --git a/configure.ac b/configure.ac
index 2e1de76606..82bc320a9e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -871,6 +871,7 @@ if test "$bwin32" = "true"; then
   # think it's actually necessary.
   TOR_LIB_GDI=-lgdi32
   TOR_LIB_USERENV=-luserenv
+  TOR_LIB_BCRYPT=-lbcrypt
 else
   TOR_LIB_WS32=
   TOR_LIB_GDI=
@@ -879,6 +880,7 @@ fi
 AC_SUBST(TOR_LIB_WS32)
 AC_SUBST(TOR_LIB_GDI)
 AC_SUBST(TOR_LIB_IPHLPAPI)
+AC_SUBST(TOR_LIB_BCRYPT)
 AC_SUBST(TOR_LIB_SHLWAPI)
 AC_SUBST(TOR_LIB_USERENV)
 
@@ -896,7 +898,7 @@ if test "$enable_static_libevent" = "yes"; then
     fi
 fi
 
-TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32], [
+TOR_SEARCH_LIBRARY(libevent, $trylibeventdir, [-levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_IPHLPAPI $TOR_LIB_BCRYPT $TOR_LIB_WS32], [
 #ifdef _WIN32
 #include <winsock2.h>
 #endif

EDIT: see patch that fixes openssl linker problems as well -> #40116 (comment 2707945)