Use the pre-build binaries of the dependencies in the Windows build.

Author: dlemstra

.github/workflows/build/windows/download-configure.cmd

@@ -0,0 +1,11 @@
+@echo off
+
+set "SCRIPT_DIR=%~dp0"
+set "EXECUTION_DIR=%cd%"
+
+call "%SCRIPT_DIR%find-bash.cmd"
+
+call set "PATH=%%SCRIPT_DIR:%EXECUTION_DIR%=%%"
+call set "LINUX_PATH=%PATH:\=/%"
+
+%BASH% -c "./%LINUX_PATH%/download-configure.sh"

.github/workflows/build/windows/download-configure.sh

@@ -0,0 +1,31 @@
+#/bin/bash
+set -e
+
+download_release()
+{
+  local project=$1
+  local release=$2
+  local file=$3
+
+  echo "Downloading $file from release $release of $project"
+
+  curl -sS -L "https://github.com/ImageMagick/$project/releases/download/$release/$file" -o "$file"
+}
+
+download_configure()
+{
+  local version=$1
+
+  mkdir -p "Configure"
+  cd "Configure"
+
+  download_release "Configure" "$version" "Configure.Release.x64.exe"
+  download_release "Configure" "$version" "Configure.Release.arm64.exe"
+  download_release "Configure" "$version" "Configure.Release.x86.exe"
+  download_release "Configure" "$version" "files.zip"
+  unzip -o "files.zip" && rm "files.zip"
+
+  cd ..
+}
+
+download_configure "2025.07.15.0637"

.github/workflows/build/windows/download-dependencies.cmd

@@ -0,0 +1,11 @@
+@echo off
+
+set "SCRIPT_DIR=%~dp0"
+set "EXECUTION_DIR=%cd%"
+
+call "%SCRIPT_DIR%find-bash.cmd"
+
+call set "PATH=%%SCRIPT_DIR:%EXECUTION_DIR%=%%"
+call set "LINUX_PATH=%PATH:\=/%"
+
+%BASH% -c "./%LINUX_PATH%/download-dependencies.sh --dependencies-artifact %1"

.github/workflows/build/windows/download-dependencies.sh

@@ -0,0 +1,55 @@
+#/bin/bash
+set -e
+
+download_release()
+{
+  local project=$1
+  local release=$2
+  local file=$3
+
+  echo "Downloading $file from release $release of $project"
+
+  curl -sS -L "https://github.com/ImageMagick/$project/releases/download/$release/$file" -o "$file"
+}
+
+download_dependencies()
+{
+  local version=$1
+  local artifact=$2
+
+  mkdir -p "Dependencies"
+  cd "Dependencies"
+
+  download_release "Dependencies" "$version" "$artifact"
+  unzip -o "$artifact" -d "../Artifacts" || {
+    exit_code=$?
+    if [[ $exit_code -ne 0 && $exit_code -ne 1 ]]; then
+      echo "Unzip failed with exit code $exit_code"
+      exit $exit_code
+    fi
+  }
+
+  cd ..
+}
+
+dependenciesArtifact=""
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    --dependencies-artifact)
+      dependenciesArtifact="$2"
+      shift 2
+      ;;
+    *)
+      echo "Unknown option: $1"
+      exit 1
+      ;;
+  esac
+done
+
+if [[ -z "$dependenciesArtifact" ]]; then
+  echo "Error: The --dependencies-artifact option is required."
+  exit 1
+fi
+
+download_dependencies "2025.07.15.2108" "$dependenciesArtifact"

.github/workflows/build/windows/find-bash.cmd

@@ -0,0 +1,20 @@
+set BASH="%PROGRAMFILES%\Git\bin\bash.exe"
+if exist %BASH% goto EXECUTE
+
+set BASH="%PROGRAMFILES(x86)%\Git\bin\bash.exe"
+if exist %BASH% goto EXECUTE
+
+set BASH="%ProgramW6432%\Git\bin\bash.exe"
+if exist %BASH% goto EXECUTE
+
+set BASH="%USERPROFILE%\scoop\apps\git\current\bin\bash.exe"
+if exist %BASH% goto EXECUTE
+
+for /F "tokens=*" %%g in ('where bash') do (SET BASH=%%g)
+if exist %BASH% goto EXECUTE
+
+echo Failed to find bash.exe
+echo %BASH%
+exit /b 1
+
+:EXECUTE

.github/workflows/main.yml

@@ -73,38 +73,40 @@ jobs:
         make install
 
   build_windows:
-    name: Build Windows
+    name: Build Windows ${{matrix.architecture}}
     runs-on: windows-2022
 
+    strategy:
+      fail-fast: false
+      matrix:
+        architecture: [ x64, x86 ]
+
     steps:
     - uses: actions/checkout@v4
       with:
         path: ImageMagick
 
-    - uses: actions/checkout@v4
-      with:
-        repository: ImageMagick/ImageMagick-Windows
-        path: ImageMagick-Windows
-        ref: refs/heads/main
+    - name: Download configure
+      shell: cmd
+      run: |
+        ImageMagick\.github\build\windows\download-configure.cmd
 
-    - name: Clone repositories
+    - name: Download dependencies
       shell: cmd
       run: |
-        cd ImageMagick-Windows
-        CloneRepositories.IM6.cmd
+        ImageMagick\.github\build\windows\download-dependencies.cmd windows-${{matrix.architecture}}-static-openMP.zip
 
     - name: Configure ImageMagick
       shell: cmd
+      working-directory: Configure
       run: |
-        cd ImageMagick-Windows\Configure
-        Configure.Release.x64.exe /noWizard /VS2022 /x64 /smtd
+        Configure.Release.x64.exe /noWizard /VS2022 /${{matrix.architecture}} /static
 
     - name: Build ImageMagick
       shell: cmd
       run: |
         call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\Tools\VsDevCmd.bat"
-        cd ImageMagick-Windows
-        msbuild IM6.StaticDLL.x64.sln /m /t:Rebuild /p:Configuration=Release,Platform=x64
+        msbuild IM6.StaticDLL.${{matrix.architecture}}.sln /m /t:Rebuild /p:Configuration=Release,Platform=x64
 
   build_msys2:
     name: Build MSYS2