Rewrite setup_build in Powershell

scripts/setup-build.ps1

@@ -0,0 +1,42 @@
+#! /usr/bin/env pwsh
+
+Param(
+    [parameter(Mandatory=$true,Position=0)][String] ${target},
+    [parameter(Mandatory=$true,Position=1)][String] ${buildType}
+)
+
+$project=(Get-Location)
+
+if (${target} -eq "windows") {
+	$toolchain="-DCMAKE_TOOLCHAIN_FILE=cmake/Modules/Mingw.cmake"
+} elseif (${target} -eq "gba") {
+	$toolchain="-DCMAKE_TOOLCHAIN_FILE=cmake/Modules/GBA.cmake -DNOSTALGIA_BUILD_TYPE=GBA -DOX_USE_STDLIB=OFF"
+}
+
+if (${buildType} -eq "asan") {
+	$buildTypeArgs="-DUSE_ASAN=ON -DCMAKE_BUILD_TYPE=Debug"
+} elseif (${buildType} -eq "debug") {
+	$buildTypeArgs="-DCMAKE_BUILD_TYPE=Debug"
+} elseif (${buildType} -eq "release") {
+	$buildTypeArgs="-DCMAKE_BUILD_TYPE=Release"
+}
+
+$buildDir="build/${target}-${buildType}"
+$distDir="../../dist/${target}-${buildType}"
+
+New-Item -ItemType Directory -Path $buildDir | Out-Null
+Push-Location $buildDir
+cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON `
+      -DCMAKE_INSTALL_PREFIX="$distDir" `
+      -DCMAKE_INSTALL_RPATH="$project/dist/${target}-${buildType}/lib/nostalgia" `
+      -DNOSTALGIA_IDE_BUILD=OFF `
+      $buildTool `
+      $buildTypeArgs `
+      $toolchain `
+      $project
+Pop-Location
+
+rm -f build/current dist/current
+New-Item -ItemType Directory -Path dist | Out-Null
+ln -s ${target}-${buildType} build/current
+ln -s ${target}-${buildType} dist/current