### Meson cross-compilation config

Contains build settings for STM32 chips. Architectures to be added
as needed.

Requires:
* arm-none-eabi-gcc
* arm-none-eabi-gdb
* picolibc
* openocd
* ddd

#### Usage

Set up a new build directory:

```sh
git submodule add \
    https://dev.begriffs.com/git/meson-cross cross

meson setup \
    --cross-file cross/armv7m/cortex-m4/st/nucleo-f411re/cross.ini \
    --cross-file cross/armv7m/gcc.ini \
    build
```

The architecture also provides two helper commands, `flash_cmd` and
`debug_cmd` so that your main meson.build file can be shorter:

```meson
subdir('cross/armv7m')

run_target('flash', command: [flash_cmd, /* image */])
run_target('debug', command: [debug_cmd, /* image */])
```