For gpgrt_wait_processes, I modified it to skip invalid PID.
The change is: rE956c40f106ea: core: Fix gpgrt_wait_processes, by skipping invalid PID.

Thank you.
For get_attr_l, I pushed a fix as rE89a353f418f5: build: Fix gpgrt-config for handling 'Requires' field.

IIUC... Could you please try this patch?

diff --git a/random/rndlinux.c b/random/rndlinux.c
index a7a78906..c20c5d4c 100644
--- a/random/rndlinux.c
+++ b/random/rndlinux.c
@@ -35,10 +35,13 @@
 #if defined(__APPLE__) && defined(__MACH__)
 #include <Availability.h>
 #ifdef __MAC_10_11
+#include <TargetConditionals.h>
+#if !defined(TARGET_OS_IPHONE) || TARGET_OS_IPHONE == 0
 extern int getentropy (void *buf, size_t buflen) __attribute__ ((weak_import));
 #define HAVE_GETENTROPY
 #endif
 #endif
+#endif
 #if defined(__linux__) || !defined(HAVE_GETENTROPY)
 #ifdef HAVE_SYSCALL
 # include <sys/syscall.h>

Fixed in 1.42.

I was wrong in my last comment. Escaping by another \ is needed.

Or, if we keep the code of newline (so that it will eventually support path with a space in future):

Thank you. Sorry for the use of GNU sed extension. It could be just a whitespace, if it's OK not to support path having a space.
sed -n -e "/^libraries/{s/libraries: =//;s/:/ /gp}") should work.

I wonder if this works in your use case:

diff --git a/m4/gpg-error.m4 b/m4/gpg-error.m4
index d910754e..aeedaf10 100644
--- a/m4/gpg-error.m4
+++ b/m4/gpg-error.m4
@@ -65,7 +65,7 @@ AC_DEFUN([AM_PATH_GPG_ERROR],
   min_gpg_error_version=ifelse([$1], ,1.33,$1)
   ok=no

If it is new, it may be the change of this commit rC8e3cd4c4677c: build: Update gpg-error.m4.

We are in transition from old gpg-error-config to new gpgrt-config. <-- This is the cause, while I tried to cover most use cases.

The optimization introduced for curve 25519 and curve 448 en-bugged for usage of direct MPI.

It's OK not supporting generation in PostScript format.
Thus, we can remove image_eps support.
Then, convert is not required any more.

Ah, I see that when there is no card reader, it returns "Service is not running" with PC/SC.
Let's fix that.

Here are example files produced by GnuPG 2.3-beta:
S part has preceding zero:

We could add compatibility mode for Ed25519 signature to conform well-formed MPI (expecting recovery).

Thank you. Applied and pushed.

For the pogo-pin test clip to flash, it is available in China.

Pushed the change. Please test.

See the comment in rE13918d05a333: Allow building with --disable-threads. for ABI incompatibility.

I'm sorry, if my wording sounded harsh.

In T1756#131862, @whites11 wrote:

I understand this is kind of an edge case, but having the possibility to use signed ssh keys would be very useful to me.

When building with no threads support, I think that generating same lock-obj-pub-$host.h is just possible by this change.

Tell us the architecture(s) which doesn't support POSIX threads by uClibc.
Adding support for such an architecture would be the best.

Sorry, I was assuming uClibc were not supporting POSIX threads.

Thank you for more information.

Please note that the result with --host="arm-unknown-linux-gnueabi" for linux-uclibcgnueabih machine is different to the one of correctly generated version by gen-posix-lock-obj.c with USE_POSIX_THREADS undefined on the host.

I found that the use of $CC -print-file-name=crt1.o won't work with some cross compiler.
For example, on my system of Debian bullseye for cross compiler ppc64el, while it's for multiarch configuration, crt1.o is under GNU cross style directory: /usr/powerpc64le-linux-gnu/lib

I would understand your workaorund of using artifical --host intentionally.

We also need to support the use case of GNU cross style, like when we build with MinGW toolchain.

With GnuPG in master (to be 2.3), it can handle the second SKESK when the first one fails.

For other libraries, like libgcrypt, it is mostly OK with old gpg-error.m4, because those libraries don't depend on new libgpg-error features.

Fixed GnuPG in rGe1e3f1db4660: build: Update gpg-error.m4. and rG985e85dc0e6c: build: Update gpg-error.m4..

Fixed more in rEd7fd25bbfb83: build: Fix the previous change..

Thank you for the report. I had expected *-*-linux* matches only to GNU/Linux (Linux kernel with GNU C library).

Considered again, I realized that (1) is no need to check.

POSIX says so (use printf instead).
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/echo.html

Thank you. I'll fix. Perhaps, I'll ignore old UNIXen like AIX 6.1, which has no way to echo with no newlines.

Thanks. Applied in rG4ca8ca5f7f58: po: Update Simplified Chinese Translation..

So 'out of core' actually means:

• run out of the memory resource, in other words, insufficient memory resources ?

Here are my comments.

pubkey_cmp should be symmetric (pubkey_cmp(A,B) == - pubkey_cmp(B,A)), but it was not.