Install zlib before starting the windows build

Author: vxgmichel

pyproject.toml

@@ -72,6 +72,33 @@ build = "cp*-win_amd64 cp*-manylinux_x86_64 cp*-macosx_x86_64 cp*-macosx_arm64"
 skip = ["cp38-*", "cp3??t-*"]
 
 [tool.cibuildwheel.windows]
+# 1. Install all architectures ONCE at the very beginning
+before-all = """
+  vcpkg install zlib:x86-windows zlib:x64-windows zlib:arm64-windows
+  echo "--- vcpkg zlib install complete ---"
+"""
+# 2. Before EACH build, map the arch and set env vars
+before-build = """
+  echo "--- CIBW_BEFORE_BUILD for {arch} ---"
+
+  if "%{arch}" == "x86" (
+    set VCPKG_ARCH_DIR=x86-windows
+  ) else if "%{arch}" == "AMD64" (
+    set VCPKG_ARCH_DIR=x64-windows
+  ) else if "%{arch}" == "ARM64" (
+    set VCPKG_ARCH_DIR=arm64-windows
+  ) else (
+    echo "Unknown architecture: %{arch}"
+    exit /b 1
+  )
+
+  echo "Using vcpkg arch: %VCPKG_ARCH_DIR%"
+
+  set "INCLUDE=%VCPKG_ROOT%\\installed\\%VCPKG_ARCH_DIR%\\include;%INCLUDE%"
+  set "LIB=%VCPKG_ROOT%\\installed\\%VCPKG_ARCH_DIR%\\lib;%LIB%"
+
+  echo "Updated INCLUDE: %INCLUDE%"
+"""
 test-command = "gambaterm --help"
 
 [tool.cibuildwheel.macos]