Compiled languages are Meson's bread and butter, but hardly required.
This is convenient, because many test caases specifically, do not care
about testing the compiler interactions.
In such cases, we can skip doing compiler lookups which aren't used, as
they only slow down test setup.
D lang compilers have an option -release (or similar) which turns off
asserts, contracts, and other runtime type checking. This patch wires
that up to the b_ndebug flag.
Fixes#7082
Initially produced using:
for d in "test cases/failing/"* ; do rm -r _build ; ./meson.py setup "$d" _build | grep ERROR >"$d"/expected_stdout.txt; done
then converted to json with jq using:
jq --raw-input --slurp 'split("\n") | {stdout: map({line: select(. != "")})}' expected_stdout.txt >test.json
or merged with existing json using:
jq --slurp '.[0] + .[1]' test.json expected.json >test.json.new
v2:
Add some comments to explain the match when it isn't totally obvious
v3:
Add or adjust existing re: in expected output to handle '/' or '\' path
separators appearing in message, not location.
v4:
Put expected stdout in test.json, rather than a separate expected_stdout.txt file
Park comments in an unused 'comments' key, as JSON doesn't have a syntax for comments
If first checking for a dependency as not-required, and then later
checking for the same dependency again as required, we would not
error out saying the dependency is missing, but just silently
re-use the cached dependency object from the first check and then
likely fail at build time if the dependency is not actually there.
With test case.
Fixes#964.