Fix local build

fetch-llvm.ps1

@@ -1,28 +0,0 @@
-Set-StrictMode -Version Latest
-Set-PSDebug -Trace 2
-
-$LLVM_VERSION="19.1.2"
-$BASE_DOWNLOAD_URL="https://github.com/birth-software/build-llvm/releases/download/llvm-$LLVM_VERSION"
-
-$LLVM_DOWNLOAD_FILE_BASENAME="llvm-$LLVM_VERSION-windows-amd64-msvc17-msvcrt"
-if ($args[0].Equals("Debug"))
-{
-    $LLVM_DOWNLOAD_FILE_BASENAME="$LLVM_DOWNLOAD_FILE_BASENAME-dbg"
-}
-
-$LLVM_DOWNLOAD_FILE="$LLVM_DOWNLOAD_FILE_BASENAME.7z"
-$LLVM_DOWNLOAD_URL="$BASE_DOWNLOAD_URL/$LLVM_DOWNLOAD_FILE"
-
-Write-Output "URL: $LLVM_DOWNLOAD_URL"
-
-Invoke-WebRequest -Uri "$LLVM_DOWNLOAD_URL" -OutFile "$LLVM_DOWNLOAD_FILE"
-if ($LastExitCode -ne 0)
-{
-    exit $LastExitCode
-}
-7z x $LLVM_DOWNLOAD_FILE
-if ($LastExitCode -ne 0)
-{
-    exit $LastExitCode
-}
-dir

project.ps1

@@ -1,70 +0,0 @@
-Set-StrictMode -Version Latest
-Set-PSDebug -Trace 2
-$previous_error_action_preference = $global:ErrorActionPreference
-$global:ErrorActionPreference = 'Stop'
-$myargs=$args
-$build_dir="build"
-$release_mode="Debug"
-$build_type_prefix="build_type="
-$cmake_prefix_path_prefix="-DCMAKE_PREFIX_PATH="
-
-try
-{
-    $cmake_prefix_path=""
-    foreach ($arg in $myargs)
-    {
-        if ($arg.StartsWith($build_type_prefix))
-        {
-            $release_mode = $arg.Substring($build_type_prefix.Length)
-        }
-        if ($arg.StartsWith($cmake_prefix_path_prefix))
-        {
-            $cmake_prefix_path = $arg.Substring($cmake_prefix_path_prefix.Length);
-        }
-    }
-
-    if ($cmake_prefix_path.Equals(""))
-    {
-        if ($release_mode.Equals("Debug"))
-        {
-            $cmake_prefix_path="llvm-19.1.2-windows-amd64-msvc17-msvcrt-dbg"
-        }
-        else
-        {
-            $cmake_prefix_path="llvm-19.1.2-windows-amd64-msvc17-msvcrt"
-        }
-    }
-
-    Write-Output "Build type: $release_mode. Prefix $cmake_prefix_path"
-
-    New-Item -Path $build_dir -ItemType Directory -Force
-    cmake . "-B$build_dir" -G Ninja "-DCMAKE_BUILD_TYPE=$release_mode" -DCMAKE_C_COMPILER="clang" -DCMAKE_CXX_COMPILER="clang++" "-DCMAKE_PREFIX_PATH=$cmake_prefix_path" "-DCMAKE_VERBOSE_MAKEFILE=ON"
-    if ($LastExitCode -ne 0)
-    {
-        exit $LastExitCode
-    }
-    pushd $build_dir
-    ninja -v
-    if ($LastExitCode -ne 0)
-    {
-        exit $LastExitCode
-    }
-    popd
-
-    if ($($myargs.Length) -ne 0)
-    {
-        & ".\$build_dir\runner" $myargs
-        if ($LastExitCode -ne 0)
-        {
-            exit $LastExitCode
-        }
-    }
-}
-catch
-{
-    throw
-}
-finally
-{
-    $global:ErrorActionPreference = $previous_error_action_preference
-}

project.sh

@@ -1,11 +1,52 @@
 #!/usr/bin/env bash
-set -ex
+set -eux
 original_dir=$PWD
 build_dir=build
 C_COMPILER_PATH=clang
 CXX_COMPILER_PATH=clang++
 ASM_COMPILER_PATH=clang
 
+if [[ -z "${BIRTH_OS-}" ]]; then
+    case "$OSTYPE" in
+        msys*)
+            BIRTH_OS=windows
+            ;;
+        linux*)
+            BIRTH_OS=linux
+            ;;
+        darwin*)
+            BIRTH_OS=macos
+            ;;
+        *)
+            exit 1
+            ;;
+    esac
+fi
+
+if [[ -z "${BIRTH_ARCH-}" ]]; then
+    case "$(uname -m)" in
+        x86_64)
+            BIRTH_ARCH=x86_64
+            ;;
+        arm64)
+            BIRTH_ARCH=aarch64
+            ;;
+        *)
+            exit 1
+            ;;
+    esac
+fi
+
+if [[ -z "${CMAKE_BUILD_TYPE-}" ]]; then
+    CMAKE_BUILD_TYPE=Debug
+fi
+
+if [[ -z "${CMAKE_PREFIX_PATH-}" ]]; then
+    CMAKE_PREFIX_PATH=""
+fi
+
+
+
 case $BIRTH_OS in
     windows)
         C_COMPILER_OPT_ARG="-DCMAKE_C_COMPILER_TARGET=x86_64-pc-windows-msvc"