Keep the Lua-less build compiling

cgit_abort_filters unhooks the Lua write interposer under NO_LUA too,
where neither the hook nor its state exists, so make NO_LUA=1 and the
default mode of tools/release-build.sh have not compiled since the die
path learned to take stdout back from a filter. The suite now builds and
runs that variant as well, and a lua: filter in such a build is refused
with a message naming the cause instead of an unknown filter type.

1 file changed, 5 insertions, 0 deletions

diff --git a/README.txt b/README.txtindex 844b6d0..5582164 100644--- a/README.txt+++ b/README.txt@@ -46,6 +46,11 @@ runtime, turn it off.      $ make NO_LUA=1 +A binary built this way still runs every exec: filter, but a filter named with+the lua: prefix has no interpreter to run in, so it is refused with an error on+every page until the setting is taken out of cgitrc. make test builds this+variant as well, into build/nolua, and checks it the same way.+  Setup -----
diff --git a/README.txt b/README.txt
index 844b6d0..5582164 100644
--- a/README.txt
+++ b/README.txt
@@ -46,6 +46,11 @@ runtime, turn it off.
 
     $ make NO_LUA=1
 
+A binary built this way still runs every exec: filter, but a filter named with
+the lua: prefix has no interpreter to run in, so it is refused with an error on
+every page until the setting is taken out of cgitrc. make test builds this
+variant as well, into build/nolua, and checks it the same way.
+
 
 Setup
 -----