guile: disable guile gmp allocator (fix crash on unload of relay plugin) (bug #40628)

AUTHORS

@@ -55,6 +55,7 @@ Alphabetically:
 * Paul Komkoff
 * Pavel Shevchuk (Stalwart)
 * Peter Boström (pbos)
+* Pierre Carru
 * Piotr Szymaniak
 * Pistos
 * Quentin Glidic (SardemFF7)

ChangeLog

@@ -38,6 +38,8 @@ http://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
   string_eval_expression and command /eval
 * api: add support for C++ plugins
 * api: fix read of arrays in hdata functions hdata_<type> (bug #40354)
+* guile: disable guile gmp allocator (fix crash on unload of relay plugin)
+  (bug #40628)
 * irc: fix groups in channel nicklist when reconnecting to a server that
   supports more nick prefixes than the previously connected server
 * irc: fix auto-switch to channel buffer when doing /join channel (without "#")

src/plugins/guile/weechat-guile.c

@@ -972,6 +972,13 @@ weechat_plugin_init (struct t_weechat_plugin *plugin, int argc, char *argv[])
 
     guile_stdout = NULL;
 
+    /*
+     * prevent guile to use its own gmp allocator, because it can conflict
+     * with other plugins using GnuTLS like relay, which can crash WeeChat
+     * on unload (or exit)
+     */
+    scm_install_gmp_memory_functions = 0;
+
     scm_init_guile ();
 
     guile_module_weechat = scm_c_define_module ("weechat",