Merge pull request #949 from dbitouze/master

Fix local assignment to a global variable '\g__sys_backend_tl'
latex3 · Jun 14, 2021 · 6c1b648 · 6c1b648
2 parents 0e42f6c + e8a21bd
commit 6c1b648
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diff --git a/l3kernel/CHANGELOG.md b/l3kernel/CHANGELOG.md
@@ -8,6 +8,7 @@ this project uses date-based 'snapshot' version identifiers.
 ## [Unreleased]
 
 ### Fixed
+- Local assignment to `\g__sys_backend_tl`
 - Incorrect internal function name (issue #939)
 - Case-changing exceptions for (u)pTeX (issue #939)
 

diff --git a/l3kernel/l3sys.dtx b/l3kernel/l3sys.dtx
@@ -498,7 +498,7 @@
       }
       {
         \tl_if_blank:nF {#1}
-          { \tl_set:Nn \g_@@_backend_tl {#1} }
+          { \tl_gset:Nn \g_@@_backend_tl {#1} }
         \@@_load_backend_check:N \g_@@_backend_tl
         \str_const:Nx \c_sys_backend_str { \g_@@_backend_tl }
         \__kernel_sys_configuration_load:n