tests: disable SMTP UTF-8 tests on Windows

Fixes #4988
Closes #4992

tests/FILEFORMAT

@@ -216,6 +216,7 @@ SKIPPED.
 
 Features testable here are:
 
+alt-svc
 crypto
 debug
 getrlimit
@@ -226,6 +227,7 @@ idn
 ipv6
 Kerberos
 large_file
+ld_preload
 libz
 manual
 Metalink
@@ -238,14 +240,13 @@ SPNEGO
 SSL
 SSLpinning
 SSPI
+threaded-resolver
 TLS-SRP
 TrackMemory
-threaded-resolver
 unittest
 unix-sockets
+win32
 WinSSL
-ld_preload
-alt-svc
 
 as well as each protocol that curl supports.  A protocol only needs to be
 specified if it is different from the server (useful when the server

tests/data/test955

@@ -16,6 +16,9 @@ SMTP
 <server>
 smtp
 </server>
+<features>
+!win32
+</features>
 <setenv>
 LC_ALL=en_US.UTF-8
 LC_CTYPE=en_US.UTF-8

tests/data/test956

@@ -16,6 +16,9 @@ SMTP
 <server>
 smtp
 </server>
+<features>
+!win32
+</features>
 <setenv>
 LC_ALL=en_US.UTF-8
 LC_CTYPE=en_US.UTF-8

tests/data/test957

@@ -17,6 +17,9 @@ VRFY
 <server>
 smtp
 </server>
+<features>
+!win32
+</features>
 <setenv>
 LC_ALL=en_US.UTF-8
 LC_CTYPE=en_US.UTF-8

tests/data/test958

@@ -17,6 +17,9 @@ VRFY
 <server>
 smtp
 </server>
+<features>
+!win32
+</features>
 <setenv>
 LC_ALL=en_US.UTF-8
 LC_CTYPE=en_US.UTF-8

tests/data/test959

@@ -18,6 +18,7 @@ smtp
 </server>
 <features>
 !idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test960

@@ -18,6 +18,7 @@ smtp
 </server>
 <features>
 !idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test961

@@ -19,6 +19,7 @@ smtp
 </server>
 <features>
 !idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test965

@@ -22,6 +22,7 @@ smtp
 </server>
 <features>
 idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test966

@@ -22,6 +22,7 @@ smtp
 </server>
 <features>
 idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test967

@@ -26,6 +26,7 @@ smtp
 </server>
 <features>
 idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test968

@@ -23,6 +23,7 @@ smtp
 </server>
 <features>
 idn
+!win32
 </features>
 <setenv>
 LC_ALL=en_US.UTF-8

tests/data/test969

@@ -29,6 +29,7 @@ smtp
 </server>
 <features>
 idn
+!win32
 </features>
  <name>
 SMTP mailing list EXPN (CUSTOMREQUEST) with SMTPUTF8 support

tests/runtests.pl

@@ -243,6 +243,7 @@ my $has_altsvc;     # set if libcurl is built with alt-svc support
 my $has_ldpreload;  # set if curl is built for systems supporting LD_PRELOAD
 my $has_multissl;   # set if curl is build with MultiSSL support
 my $has_manual;     # set if curl is built with built-in manual
+my $has_win32;      # set if curl is built for Windows
 
 # this version is decided by the particular nghttp2 library that is being used
 my $h2cver = "h2c";
@@ -2639,6 +2640,7 @@ sub setupfeatures {
     $feature{"alt-svc"} = $has_altsvc;
     $feature{"manual"} = $has_manual;
     $feature{"unix-sockets"} = $has_unix;
+    $feature{"win32"} = $has_win32;
 
     # make each protocol an enabled "feature"
     for my $p (@protocols) {
@@ -2718,6 +2720,7 @@ sub checksystem {
                 # Win32-style path.
                 $pwd = pathhelp::sys_native_current_path();
                 $has_textaware = 1;
+                $has_win32 = 1;
             }
            if ($libcurl =~ /(winssl|schannel)/i) {
                $has_winssl=1;