t-link does not do antthing useful, anyway. I don't think it is justified to add dlopen stuff. Running real test is anyway a manual action; for a full test automation we would need to emulate all supported cards.

the t-link test should dlopen scute.so in runtime rather than link against it in build-time.

This has been fixed in version 2.2.16.

As of slibtool commit 9c5ba5eb, scute now builds out of the box. I'd still recommend taking the above into consideration, though.

For what it's worth, scute is in violation of gnu libtool's documentation. Building with gnu libtool:

(sorry, about my former comment, I only now realized that you did just that already in your original patch)

Updated:

diff --git a/configure.ac b/configure.ac
index 53a343b..f496729 100644
--- a/configure.ac
+++ b/configure.ac
@@ -82,6 +82,7 @@ AC_PROG_AWK
 AC_CHECK_TOOL(AR, ar, :)
 AC_USE_SYSTEM_EXTENSIONS

I guess the strcasecmp (nl_langinfo (CODESET), "UTF-8") results in some overhead, so if we do that what about kicking in only if a truncation is really to happen.

Fixed in rP7f7fd8bcfd74: tty: Fix error return paths and its resource leaks.

Actually, calling do_touch_file when some error(s) are not good.
Let me fix all the things.

Sorry, I was wrong. It seems that GNU C library has a feature to avoid bad truncation.

Ok, thank you. I think task can be closed.

I hope last amendment is the following, which can happen if the tty can be opened only for reading but not for writing:

--- a/tty/pinentry-tty.c
+++ b/tty/pinentry-tty.c
@@ -583,7 +583,8 @@ tty_cmd_handler (pinentry_t pinentry)
   if (pinentry->ttyname)
     {
       fclose (ttyfi);
-      fclose (ttyfo);
+      if (ttyfo)
+        fclose (ttyfo);
     }

gpg4win 3.1 has no full Unicode support. You may try to install the new GnuPG 2.3 version on top of gpg4win to fix this problem or wait until we have releases gpg4win 4 which will come with GnuPG 2.3.

Thank you.
We also need to release memory for points.

Please tell us more details on how we can replicate your problem. Which Windows version, any non-standard software installed, non-standard installation direcories etc. You may also provide the output of

mkheader has CFLAGS_FOR_BUILD since libassuan 2.5.4.
gost-s-box has so since libgcrypt 1.9.0.

Making this task up to HIGH priority, so that people can easily find this change in 2.3.0.

Done for gpa.
Please test.

Done for pinentry.

This task includes multiple issues: two sub-tasks and how-to-use remotely.
Two tasks had been fixed already.
The last one was documented here.
So, closing.

Thank you. Merged and pushed.

Thank you for applying the provided changes!

Applied and pushed.