param(
    [string]$Opt = "-O0"
)

$ErrorActionPreference = "Stop"

# Compile hello.cpp as a shared library (also generates libhello.lib import library)
clang++ -std=c++17 $Opt -shared -o libhello.dll hello.cpp "-Wl,/IMPLIB:libhello.lib"
if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }

# Compile and link main.cpp with the shared library
clang++ -std=c++17 $Opt -o main.exe main.cpp libhello.lib
if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }

Write-Host "Build successful"