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Install protoc and libclang in Windows bootstrap #11536

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Install protoc and libclang in Windows bootstrap #11536

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5c8a33f
Install protoc and libclang in Windows bootstrap
SATYAM-PRATIBHAN May 22, 2026
a7f076f
fix: oz suggestion itr1
SATYAM-PRATIBHAN May 22, 2026
9e12860
fix: oz suggestion itr2
SATYAM-PRATIBHAN May 22, 2026
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14 changes: 13 additions & 1 deletion script/windows/bootstrap.ps1
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Expand Up @@ -46,7 +46,7 @@ function Show-BootstrapPreview {
Write-Output 'It will:'
Write-Output ' - Check for Git for Windows.'
Write-Output ' - Install Rust if cargo is unavailable.'
Write-Output ' - Install Visual Studio Build Tools, jq, CMake, InnoSetup, and gcloud as needed.'
Write-Output ' - Install Visual Studio Build Tools, jq, CMake, InnoSetup, protoc, LLVM, and gcloud as needed.'
Write-Output ' - Install Cargo test dependencies.'

if (-not $InstallCommonSkills) {
Expand Down Expand Up @@ -157,6 +157,18 @@ winget install -e --id Kitware.CMake
# We use InnoSetup to build our release bundle installer.
winget install -e --id JRSoftware.InnoSetup

# protoc (Protocol Buffers compiler) is required by prost-build.
winget install -e --id Google.Protobuf
if (-not (Get-Command -Name protoc -Type Application -ErrorAction SilentlyContinue)) {
$env:PATH += ";$env:LOCALAPPDATA\Microsoft\WinGet\Links"
}

# LLVM provides libclang, which is required by bindgen.
winget install -e --id LLVM.LLVM
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@oz-for-oss oz-for-oss Bot May 22, 2026

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⚠️ [IMPORTANT] LLVM.LLVM installs LLVM, but the silent WinGet install does not guarantee C:\Program Files\LLVM\bin is available to this PowerShell session, so bindgen can still fail to load libclang after bootstrap. Append the LLVM bin directory to $env:PATH or set LIBCLANG_PATH after installation.

if (-not (Get-Command -Name clang -Type Application -ErrorAction SilentlyContinue)) {
$env:PATH += ";$env:ProgramFiles\LLVM\bin"
}

# If we don't see gcloud command, try adding the install location to the PATH.
if (-not (Get-Command -Name gcloud -Type Application -ErrorAction SilentlyContinue)) {
$env:PATH += ";$env:LOCALAPPDATA\Google\Cloud SDK\google-cloud-sdk\bin"
Expand Down