Merge pull request #38 from dscho/work-around-overzealous-pcon-code

Add a work-around for that overzealous pseudo console code

.github/workflows/build.yaml

@@ -15,7 +15,7 @@ jobs:
         with:
           msystem: MSYS
           update: true
-          install: msys2-devel base-devel cocom diffutils gcc gettext-devel libiconv-devel make mingw-w64-cross-crt mingw-w64-cross-gcc mingw-w64-cross-zlib perl zlib-devel
+          install: msys2-devel base-devel autotools cocom diffutils gcc gettext-devel libiconv-devel make mingw-w64-cross-crt mingw-w64-cross-gcc mingw-w64-cross-zlib perl zlib-devel xmlto docbook-xsl
 
       - name: Build
         shell: msys2 {0}

winsup/cygwin/fhandler_console.cc

@@ -476,6 +476,11 @@ fhandler_console::set_input_mode (tty::cons_mode m, const termios *t,
   DWORD flags = 0, oflags;
   WaitForSingleObject (p->input_mutex, INFINITE);
   GetConsoleMode (p->input_handle, &oflags);
+  if (disable_pcon && m == tty::cygwin)
+    /* If we disabled pseudo console support explicitly, it would be wrong to
+       mess with the flags. In fact, we _still_ mess with the flags, but at
+       least with tty::restore we do little damage. */
+    m = tty::restore;
   switch (m)
     {
     case tty::restore: