try vcpkgs

Author: mthrok

.github/workflows/_build_windows.yml

@@ -35,8 +35,16 @@ jobs:
           SPDL_BUILD_STUB: 1
         shell: bash
         run: |
+          set -x
+
           # choco does not have a zlib
           # choco install zlib -y
+          vcpkg install zlib
+          find C:/vcpkg/packages/zlib_x64-windows/
+          echo "${VCPKG_ROOT}"
+          export CMAKE_TOOLCHAIN_FILE="C:/vcpkg/scripts/buildsystems/vcpkg.cmake"
+          find C:/vcpkg/scripts/buildsystems/
+          find C:/vcpkg/installed/x64-windows/
 
           curl -LsSf https://astral.sh/uv/install.sh | sh
           set -ex

packaging/spdl_io/setup.py

@@ -113,6 +113,7 @@ def _b(var):
             "-DSPDL_BUILD_PYTHON_BINDING=ON",
             f"-DSPDL_PYTHON_BINDING_INSTALL_PREFIX={install_dir}",
             f"-DSPDL_IS_GIL_ENABLED={_b(_is_gil_enabled())}",
+            "-DCMAKE_TOOLCHAIN_FILE=C:\\vcpkg\scripts\\buildsystems\\vcpkg.cmake",
             ###################################################################
             # Options based on env vars
             ###################################################################

src/CMakeLists.txt

@@ -41,7 +41,11 @@ message(STATUS "########################################")
 find_package(fmt REQUIRED NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_PACKAGE_REGISTRY NO_CMAKE_SYSTEM_PACKAGE_REGISTRY)
 find_package(glog REQUIRED NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_PACKAGE_REGISTRY NO_CMAKE_SYSTEM_PACKAGE_REGISTRY)
 find_package(libdeflate REQUIRED NO_SYSTEM_ENVIRONMENT_PATH NO_CMAKE_PACKAGE_REGISTRY NO_CMAKE_SYSTEM_PACKAGE_REGISTRY)
-find_package(ZLIB 1.1.2 REQUIRED)
+
+set(ZLIB_DIR "C:/vcpkg/packages/zlib_x64-windows")
+set(CMAKE_FIND_DEBUG_MODE TRUE)
+find_package(ZLIB 1.1.2 REQUIRED
+  HINTS "C:/vcpkg/packages/zlib_x64-windows")
 
 add_subdirectory(third_party/ffmpeg/multi)
 if (SPDL_USE_TRACING)