cmake: fix Windows build support

On Windows, shared libraries (DLLs) require an import library (.lib)
for linking, and the DLL itself is placed in bin/ rather than lib/ by
the Zig build. The CMake wrapper was missing IMPORTED_IMPLIB on the
shared imported target, causing link failures, and assumed the shared
library was always in lib/.

Add GHOSTTY_VT_IMPLIB for the import library name, set IMPORTED_IMPLIB
on the ghostty-vt target, and fix the shared library path to use bin/
on Windows. Install the DLL and PDB to bin/ and the import library to
lib/ following standard Windows conventions. Apply the same fixes to
ghostty-vt-config.cmake.in for the find_package path.

.github/workflows/test.yml

@@ -87,6 +87,7 @@ jobs:
       - build-dist
       - build-examples-zig
       - build-examples-cmake
+      - build-examples-cmake-windows
       - build-cmake
       - build-flatpak
       - build-libghostty-vt
@@ -263,6 +264,30 @@ jobs:
           nix develop -c cmake -B build -DFETCHCONTENT_SOURCE_DIR_GHOSTTY=${{ github.workspace }}
           nix develop -c cmake --build build
 
+  build-examples-cmake-windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        dir: ${{ fromJSON(needs.list-examples.outputs.cmake) }}
+    name: Example ${{ matrix.dir }} (Windows)
+    runs-on: windows-2025
+    continue-on-error: true
+    timeout-minutes: 45
+    needs: [test, list-examples]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Install zig
+        uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29 # v2.2.1
+
+      - name: Build Example
+        shell: pwsh
+        run: |
+          cd example/${{ matrix.dir }}
+          cmake -B build -DFETCHCONTENT_SOURCE_DIR_GHOSTTY=${{ github.workspace }}
+          cmake --build build
+
   build-cmake:
     runs-on: namespace-profile-ghostty-sm
     needs: test

CMakeLists.txt

@@ -81,13 +81,18 @@ if(APPLE)
 elseif(WIN32)
     set(GHOSTTY_VT_LIBNAME "ghostty-vt.dll")
     set(GHOSTTY_VT_REALNAME "ghostty-vt.dll")
+    set(GHOSTTY_VT_IMPLIB "ghostty-vt.lib")
 else()
     set(GHOSTTY_VT_LIBNAME "${CMAKE_SHARED_LIBRARY_PREFIX}ghostty-vt${CMAKE_SHARED_LIBRARY_SUFFIX}")
     set(GHOSTTY_VT_SONAME "${CMAKE_SHARED_LIBRARY_PREFIX}ghostty-vt${CMAKE_SHARED_LIBRARY_SUFFIX}.0")
     set(GHOSTTY_VT_REALNAME "${CMAKE_SHARED_LIBRARY_PREFIX}ghostty-vt${CMAKE_SHARED_LIBRARY_SUFFIX}.0.1.0")
 endif()
 
-set(GHOSTTY_VT_SHARED_LIBRARY "${ZIG_OUT_DIR}/lib/${GHOSTTY_VT_REALNAME}")
+if(WIN32)
+    set(GHOSTTY_VT_SHARED_LIBRARY "${ZIG_OUT_DIR}/bin/${GHOSTTY_VT_REALNAME}")
+else()
+    set(GHOSTTY_VT_SHARED_LIBRARY "${ZIG_OUT_DIR}/lib/${GHOSTTY_VT_REALNAME}")
+endif()
 
 # Static library name.
 set(GHOSTTY_VT_STATIC_REALNAME "${CMAKE_STATIC_LIBRARY_PREFIX}ghostty-vt${CMAKE_STATIC_LIBRARY_SUFFIX}")
@@ -122,7 +127,11 @@ if(APPLE)
     set_target_properties(ghostty-vt PROPERTIES
         IMPORTED_SONAME "@rpath/${GHOSTTY_VT_SONAME}"
     )
-elseif(NOT WIN32)
+elseif(WIN32)
+    set_target_properties(ghostty-vt PROPERTIES
+        IMPORTED_IMPLIB "${ZIG_OUT_DIR}/lib/${GHOSTTY_VT_IMPLIB}"
+    )
+else()
     set_target_properties(ghostty-vt PROPERTIES
         IMPORTED_SONAME "${GHOSTTY_VT_SONAME}"
     )
@@ -152,8 +161,12 @@ add_dependencies(ghostty-vt-static zig_build_lib_vt)
 include(GNUInstallDirs)
 
 # Install shared library
-install(FILES "${GHOSTTY_VT_SHARED_LIBRARY}" TYPE LIB)
-if(NOT WIN32)
+if(WIN32)
+    # On Windows, install the DLL and PDB to bin/ and the import library to lib/
+    install(FILES "${GHOSTTY_VT_SHARED_LIBRARY}" "${ZIG_OUT_DIR}/bin/ghostty-vt.pdb" TYPE BIN)
+    install(FILES "${ZIG_OUT_DIR}/lib/${GHOSTTY_VT_IMPLIB}" TYPE LIB)
+else()
+    install(FILES "${GHOSTTY_VT_SHARED_LIBRARY}" TYPE LIB)
     # Install symlinks
     install(CODE "
         execute_process(COMMAND \${CMAKE_COMMAND} -E create_symlink

dist/cmake/ghostty-vt-config.cmake.in

@@ -8,10 +8,17 @@ set(_ghostty_vt_libdir "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_LIBDIR@")
 if(NOT TARGET ghostty-vt::ghostty-vt)
     add_library(ghostty-vt::ghostty-vt SHARED IMPORTED)
 
+    if(WIN32)
+        set(_ghostty_vt_shared_location "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_BINDIR@/@GHOSTTY_VT_REALNAME@")
+    else()
+        set(_ghostty_vt_shared_location "${_ghostty_vt_libdir}/@GHOSTTY_VT_REALNAME@")
+    endif()
+
     set_target_properties(ghostty-vt::ghostty-vt PROPERTIES
-        IMPORTED_LOCATION "${_ghostty_vt_libdir}/@GHOSTTY_VT_REALNAME@"
+        IMPORTED_LOCATION "${_ghostty_vt_shared_location}"
         INTERFACE_INCLUDE_DIRECTORIES "${PACKAGE_PREFIX_DIR}/@CMAKE_INSTALL_INCLUDEDIR@"
     )
+    unset(_ghostty_vt_shared_location)
 
     if(APPLE)
         set_target_properties(ghostty-vt::ghostty-vt PROPERTIES
@@ -22,7 +29,11 @@ if(NOT TARGET ghostty-vt::ghostty-vt)
         set_property(TARGET ghostty-vt::ghostty-vt APPEND PROPERTY
             INTERFACE_LINK_OPTIONS "LINKER:-rpath,${_ghostty_vt_libdir}"
         )
-    elseif(NOT WIN32)
+    elseif(WIN32)
+        set_target_properties(ghostty-vt::ghostty-vt PROPERTIES
+            IMPORTED_IMPLIB "${_ghostty_vt_libdir}/@GHOSTTY_VT_IMPLIB@"
+        )
+    else()
         set_target_properties(ghostty-vt::ghostty-vt PROPERTIES
             IMPORTED_SONAME "@GHOSTTY_VT_SONAME@"
         )