* stacks: add a stack for devtools on darwin After getting this whole mess building on darwin, let's keep it that way, and maybe make it so we have some non-ML darwin binaries in spack as well. * reuse: false for devtools * dtc: fix darwin dylib name and id On mac the convention is `lib<name>.<num>.dylib`, while the makefile creates a num suffixed one by default. The id in the file is also a local name rather than rewritten to the full path, this fixes both problems. * node-js: make whereis more deterministic * relocation(darwin): catch Mach-O load failure The MachO library can throw an exception rather than return no headers, this happened in an elf file in the test data of go-bootstrap. Trying catching the exception and moving on for now. May also need to look into why we're trying to rewrite an elf file. * qemu: add darwin flags to clear out warnings There's a build failure for qemu in CI, but it's invisible because of the immense mass of warning output. Explicitly specify the target macos version and remove the extraneous unknown-warning-option flag. * dtc: libyaml is also a link dependency libyaml is required at runtime to run the dtc binary, lack of it caused the ci for qemu to fail when the library wasn't found.