fix: built base emsdk and other tool fixes

CMakeLists.txt

@@ -1,10 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
 
-# ---------------------------------------------------------------------------
-# Dependency-pinning guard (Rule: pin all dependency versions on Day 1).
-# We refuse to configure until vcpkg.json carries a 'builtin-baseline', which
-# scripts/bootstrap adds via `vcpkg x-update-baseline --add-initial-baseline`.
-# ---------------------------------------------------------------------------
 file(READ "${CMAKE_CURRENT_SOURCE_DIR}/vcpkg.json" _pdfengine_vcpkg_json)
 string(JSON _pdfengine_baseline ERROR_VARIABLE _pdfengine_baseline_err
        GET "${_pdfengine_vcpkg_json}" "builtin-baseline")
@@ -24,32 +19,30 @@ project(PdfEngine
     HOMEPAGE_URL "https://example.invalid/pdf-engine"
     LANGUAGES CXX)
 
-# ---------------------------------------------------------------------------
-# Global C++ settings — C++23, no compiler extensions (engine blueprint §1.3).
-# ---------------------------------------------------------------------------
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
-# compile_commands.json — consumed by clang-tidy and editors.
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-# Single output dirs so test binaries find imported shared libs at runtime.
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
+if(EMSCRIPTEN)
+    message(STATUS "PdfEngine ${PROJECT_VERSION} — WASM hello-world configuration (Phase 0)")
+    add_subdirectory(wasm)
+    return()
+endif()
+
 # Only the top-level project drives testing/install defaults.
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
     message(FATAL_ERROR "In-source builds are not allowed. Use a preset: "
                         "cmake --preset <platform>-debug")
 endif()
 
-# ---------------------------------------------------------------------------
-# Build options.
-# ---------------------------------------------------------------------------
 option(PDFENGINE_BUILD_TESTS      "Build engine unit/smoke tests"                ON)
 option(PDFENGINE_ENABLE_SANITIZERS "Build with AddressSanitizer/UBSan"           OFF)
 option(PDFENGINE_WARNINGS_AS_ERRORS "Treat compiler warnings as errors"          OFF)
@@ -59,9 +52,6 @@ include(CompilerWarnings)
 include(Sanitizers)
 include(pdfium)        # defines pdfium::pdfium when PDFENGINE_WITH_PDFIUM is ON
 
-# ---------------------------------------------------------------------------
-# Third-party dependencies (resolved by vcpkg via the manifest).
-# ---------------------------------------------------------------------------
 find_package(freetype  CONFIG REQUIRED)
 find_package(harfbuzz  CONFIG REQUIRED)
 find_package(spdlog    CONFIG REQUIRED)
@@ -72,13 +62,8 @@ if(PDFENGINE_BUILD_TESTS)
     include(GoogleTest)
 endif()
 
-# ---------------------------------------------------------------------------
-# Subprojects.
-# ---------------------------------------------------------------------------
 add_subdirectory(engine)
 
-# bindings/, gateway/, frontend/, wasm/ are placeholders in Phase 0 and are not
-# wired into the build yet.
 
 message(STATUS "PdfEngine ${PROJECT_VERSION} configured")
 message(STATUS "  C++ standard ......... ${CMAKE_CXX_STANDARD}")