summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/scripts/context/stubs/unix/luatools
diff options
context:
space:
mode:
Diffstat (limited to 'Master/texmf-dist/scripts/context/stubs/unix/luatools')
-rwxr-xr-xMaster/texmf-dist/scripts/context/stubs/unix/luatools7
1 files changed, 5 insertions, 2 deletions
diff --git a/Master/texmf-dist/scripts/context/stubs/unix/luatools b/Master/texmf-dist/scripts/context/stubs/unix/luatools
index f2716ab7a6a..51c8751abf4 100755
--- a/Master/texmf-dist/scripts/context/stubs/unix/luatools
+++ b/Master/texmf-dist/scripts/context/stubs/unix/luatools
@@ -6116,8 +6116,11 @@ function resolvers.expand_variables()
local expansions, environment, variables = { }, instance.environment, instance.variables
local env = resolvers.env
instance.expansions = expansions
- if instance.engine ~= "" then environment['engine'] = instance.engine end
- if instance.progname ~= "" then environment['progname'] = instance.progname end
+ local engine, progname = instance.engine, instance.progname
+ if type(engine) ~= "string" then instance.engine, engine = "", "" end
+ if type(progname) ~= "string" then instance.progname, progname = "", "" end
+ if engine ~= "" then environment['engine'] = engine end
+ if progname ~= "" then environment['progname'] = progname end
for k,v in next, environment do
local a, b = match(k,"^(%a+)%_(.*)%s*$")
if a and b then