On Wed, 30 Mar 2022 01:05:08 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:
> When a user has problems with their build environment that trips up their > builds, the cause is often one of just a few "popular" gotchas. For us > working with the build system, we've seen them all before, but for the > individual user, it's often the first time, and it can be really frustrating > to debug. > > The Doctor will help users detect if any of these well-known problems is > present. Not all issues can be tested automatically, but enough of the most > common problems *can* actually be checked, which makes this a worthwhile > exercise. > > (This was inspired by the macOS Homebrew "brew doctor".) > > This is an example output: > > $ make doctor > Building target 'doctor' in configuration 'linux-x86_64-server-release' > > "make doctor" will help you analyze your build environment. It can highlight > certain well-known problems, but it can never find all possible errors. > > * Verifying that configure has picked up git... > > * Checking for warnings from configure... > --- > WARNING: The result of this configuration has overridden an older > configuration. You *should* run 'make clean' to make sure you get a > proper build. Failure to do so might result in strange build problems. > --- > ! Inspect the warnings, fix any problems, and re-run configure > > * Checking for left-over core files... > > * Checking for untracked files with illegal names... > > * If all else fails, try removing the entire build directory and re-creating > the same configuration using: > --- > configure_command_line=$(make print-configuration) > make dist-clean > bash configure $configure_command_line > --- > > * The build README (doc/building.md) is a great source of information, > especially the chapter "Fixing Unexpected Build Failures". Check it out! > > * If you still need assistance please contact build-dev@openjdk.java.net. > > Finished building target 'doctor' in configuration > 'linux-x86_64-server-release' Nice feature! Did you consider using `.NOTPARALLEL` in Doctor.gmk instead of explicitly declaring prereqs between every target? ------------- Marked as reviewed by erikj (Reviewer). PR: https://git.openjdk.java.net/jdk/pull/8027
