This has a lot of possible uses, and would let users add a macro-based
type system on top of Janet that would integrate with the usual linting
and warning system.
This is the beginning of a system for compiler warnings. This includes
linting, deprecation notices, and other compiler warnings that are best
detected by the `compile` function and don't require the partial
evalutaion of the flychecker.
Use is like:
```
(declare-native
:name "my-nuermical-library"
:source @["numerical_lib.c"]
:native-deps ["tarray"])
```
Where `tarray` is a native generated by o ne of the project
dependencies. This will lets us move more C functionality out of the
core of Janet while still allowing it's use from natives.
Fix the following build failure with -Dsingle_threaded=true on embedded
toolchains without pthread:
FAILED: janet.p/meson-generated_.._janet.c.o
/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-gcc -Ijanet.p -I. -I.. -I../src/include -fdiagnostics-color=always -pipe -Wall -Winvalid-pch -std=c99 -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -pthread -fvisibility=hidden -MD -MQ janet.p/meson-generated_.._janet.c.o -MF janet.p/meson-generated_.._janet.c.o.d -o janet.p/meson-generated_.._janet.c.o -c janet.c
In file included from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/stdlib.h:24,
from ../src/include/janet.h:300,
from src/core/features.h:57:
/home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp]
218 | # warning requested reentrant code, but thread support was disabled
| ^~~~~~~
src/core/ev.c:39:10: fatal error: pthread.h: No such file or directory
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Structs and tuples composed entirely out of constant values
will themselves be considered constant values during compilation.
This reduces the amount of generated code.
