bazelbuild / bazelbuild/rules_java
Windows: statically link msvcrt into Java Tools
- Dominant language
- Starlark
- Stars
- 103
- Forks
- 102
- PR merge metrics
- No merged PRs in 30d
Description
Hi!
On Windows, the prebuilt tools in `remote_java_tools_windows` require the Microsoft VC++ Redistributable, for example:
```
external\rules_java++toolchains+remote_java_tools_windows\java_tools\ijar\ijar.exe
external\rules_java++toolchains+remote_java_tools_windows\java_tools\src\tools\singlejar\singlejar_local.exe
external\rules_java++toolchains+remote_java_tools_windows\java_tools\turbine_direct_graal.exe
```
Without the redist installed, these fail due to missing `msvcp140.dll`, `vcruntime140.dll`, `vcruntime140_1.dll` (exit code `-1073741515`).
Would it be possible link the MSVC runtime statically (i.e., `--features=static_link_msvcrt`) for these binaries, or ship the required VC++ runtime DLLs app‑local alongside the executables?
Related issue: https://github.com/bazelbuild/bazel/issues/8328.
Contributor guide
Research direction
Start by examining how the Windows binaries under remote_java_tools_windows are produced, especially ijar.exe, singlejar_local.exe, and turbine_direct_graal.exe. Reproduce the failure on a Windows machine without the Microsoft VC++ Redistributable, then verify that the chosen packaging or linking change lets all three tools run without those missing DLLs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100