As a follow up to c461e20df3 ("make: Remove version from build output
path"), only support building a single version of a single board by
default. The build directory can still be specified by passing `BUILD`.
Fixes running the `clean` target when `BUILD` is a custom value or
`BOARD` isn't set.
Fixes: b03c960b4f ("make: Reduce build output")
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Default to silent builds, only outputting the file being generated. This
gives output similar to Linux/coreboot output when building. `VERBOSE=1`
can be passed to show the actual commands.
Signed-off-by: Tim Crawford <tcrawford@system76.com>
SDCC supports the `-MMD` option. Use it instead of having every file
depend on *all* the headers. Reduces incremental build time after
modifying headers as it will now only rebuild the actual dependents and
not the entire project.
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Compiling the Arduino targets with GCC 12 fails with the following:
error: array subscript 0 is outside array bounds of 'volatile uint8_t[0]' {aka 'volatile unsigned char[]'} [-Werror=array-bounds]
Apply the workaround from the bug discussion to fix it.
Ref: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523
Signed-off-by: Tim Crawford <tcrawford@system76.com>
The arch.mk file contains variables/rules to build, so rename it. Leave
an empty arch.mk so it can still be used in a follow-up commit.
Signed-off-by: Tim Crawford <tcrawford@system76.com>
