gnu: gmime: Skip non-deterministic tests.

* gnu/packages/patches/gmime-disable-tests.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/mail.scm (gmime) [source]: Apply it.

Change-Id: Ic7bee405c79bf9ab149559563f515cc8dea4216f

gnu/local.mk

@@ -1491,6 +1491,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/glibc-2.29-git-updates.patch     	\
   %D%/packages/patches/glibc-2.29-supported-locales.patch     	\
   %D%/packages/patches/glibc-supported-locales.patch     	\
+  %D%/packages/patches/gmime-disable-tests.patch		\
   %D%/packages/patches/gmp-arm-asm-nothumb.patch		\
   %D%/packages/patches/gmp-faulty-test.patch			\
   %D%/packages/patches/gnome-2048-fix-positional-argument.patch	\

gnu/packages/mail.scm

@@ -850,7 +850,8 @@ It adds a large amount of new and improved features to mutt.")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0493dngbasd2nngzsp4b8v4cnl4vb88hc1qga5y9w7l6c89hxn1w"))))
+        (base32 "0493dngbasd2nngzsp4b8v4cnl4vb88hc1qga5y9w7l6c89hxn1w"))
+       (patches (search-patches "gmime-disable-tests.patch"))))
     (build-system gnu-build-system)
     (arguments
      (list #:configure-flags

gnu/packages/patches/gmime-disable-tests.patch

@@ -0,0 +1,20 @@
+The test-pgp and test-pgpmime fail sporadically.
+See: https://github.com/jstedfast/gmime/issues/177
+
+*** source/tests/Makefile.am	1970-01-01 09:00:01.000000000 +0900
+--- tests/Makefile.am.new	2025-04-03 23:11:19.220597686 +0900
+***************
+*** 22,33 ****
+  	test-autocrypt	\
+  	test-mime
+  
+- if ENABLE_CRYPTO
+- AUTOMATED_TESTS +=	\
+- 	test-pgp	\
+- 	test-pgpmime
+- endif
+- 
+  MANUAL_TESTS =		\
+  	test-best	\
+  	test-parser 	\
+--- 22,27 ----