On Sat, May 11, 2019 at 11:25 AM Nathan Chancellor <natechancellor@xxxxxxxxx> wrote: > > Few comments below but nothing major, this seems to work fine as is. > > On Thu, May 09, 2019 at 01:19:21PM -0700, 'Nick Desaulniers' via Clang Built Linux wrote: > > When cross compiling via setting CROSS_COMPILE, if the prefixed tools > > are not found, then the host utilities are often instead invoked, and > > produce often difficult to understand errors. This is most commonly the > > case for developers new to cross compiling the kernel that have yet to > > install the proper cross compilation toolchain. Rather than charge > > headlong into a build that will fail obscurely, check that the tools > > exist before starting to compile, and fail with a friendly error > > message. > > This part of the commit message makes it sound like this is a generic > problem when it is actually specific to clang. make will fail on its > own when building with gcc if CROSS_COMPILE is not properly set (since > gcc won't be found). > > On a side note, seems kind of odd that clang falls back to the host > tools when a non-host --target argument is used... (how in the world is > that expected to work?) I agree. Failure is much better than falling back to host tools. -- Best Regards Masahiro Yamada
