show no text "not VS-NfD compliant" for invalid signatures

For POSIX, I found an issue of T7151.
If you are using multiple clients which invoke SCD DEVINFO --watch, the problem should be fixed.
If it's not the case, let us locate a bug (or two).

Fixed in rGfc30f7059650: scd: Fix DEVINFO to allow multiple clients.

I realized that I put a bug on POSIX; When multiple clients do DEVINFO --watch, it is possible for scdaemon to hang (waiting pselect and read, read by one, read by another is blocked).

Pushed the change in: rC38742196c04c: cipher:kyber: Add gcry_kem_genkey to support deterministic op.
rC4876a1a45c25: tests:kyber: Add genkey and encap KAT tests.

Fixed GnuPG 2.4 in: rG730593affa91: common:w32: Don't expose unused functions.

For now, I'm using this to avoid failure of make check (invoking gpg-agent by gpg-connect-agent).

diff --git a/common/stringhelp.c b/common/stringhelp.c
index 9a2265258..6596c65cd 100644
--- a/common/stringhelp.c
+++ b/common/stringhelp.c
@@ -70,6 +70,22 @@ change_slashes (char *name)
 {
 #ifdef HAVE_DOSISH_SYSTEM
   char *p;
+  /* 0: don't know yet, 1: it's under wine, -1: no */
+  static int semihosted_by_wine;
+
+  /* Under wine, no change.  */
+  if (!semihosted_by_wine)
+    {
+      HMODULE hntdll = GetModuleHandle ("ntdll.dll");
+      if (hntdll
+          && GetProcAddress (hntdll, "wine_get_version"))
+        semihosted_by_wine = 1;
+      else
+        semihosted_by_wine = -1;
+    }
+
+  if (semihosted_by_wine > 0)
+    return name;

libgpg-error fix is done in: rEc2a713fe11e3: w32:spawn: Remove unused function get_max_fds.

Closing this ticket as what remains open is practically a duplicate of T6869

Backported the changes in Kleopatra for VSD 3.3.

Actually we have similar problems with the 2.4 branch - in particular on Windows. We can quite easy reproduce this when using Kleopatra. Thus the working hypothesis is a locking problem because Kleopatra uses several threads and the order of actions recently changed.

See new subtask T7290 for smartcards and the link entries mentioned above.