gnu: texmacs: Fix wrong initialization of plugins that use python.

Fix upstream bug https://savannah.gnu.org/bugs/?68269
(see also https://codeberg.org/guix/guix/pulls/7368#issuecomment-13563062)
by undoing
https://github.com/texmacs/texmacs/commit/8b096c3a44d8bc74b4f80f8af36173ddc446e8c3
and adding checks on value returned by `python-command` to every plugin
using this procedure.

* gnu/packages/text-editotrs.scm (texmacs)[source]{origin}<patches>: New
field bringing in new patch.
* gnu/packages/patches/texmacs-fix-plugins-wrong-init.patch: New patch.
* gnu/local.mk: New patch register record.

Merges: #9050

Change-Id: Ieda1d9487b9992563aebf475e21835eaab284e53
Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

1 files changed, 1 insertions, 0 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index a71dc5b68c1..94ae3d9608d 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -2555,6 +2555,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/tinyxml-CVE-2023-34194.patch             \
   %D%/packages/patches/tinyxml-use-stl.patch                    \
   %D%/packages/patches/tk-find-library.patch                    \
+  %D%/packages/patches/texmacs-fix-plugins-wrong-init.patch     \
   %D%/packages/patches/tla2tools-build-xml.patch                \
   %D%/packages/patches/tlf-support-hamlib-4.2+.patch            \
   %D%/packages/patches/tofi-32bit-compat.patch                  \