build, ci: windows build

.github/workflows/windows.yml

+name: Windows
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: windows-latest
+    name: build
+    steps:
+      - uses: actions/checkout@v3
+      - name: configure
+        run: cmake -Bbuild -DUSE_ASYNC:BOOL=OFF
+      - name: make
+        run: cmake --build build
+      - name: make check
+        run: ctest --test-dir build -Ttest -C Debug -j1 --output-on-failure

cmake/config.cmake

 
 option(USE_KLATT "Use klatt for speech synthesis" ON)
 option(USE_SPEECHPLAYER "Use speech-player for speech synthesis" ON)
-option(USE_ASYNC "Support asynchronous speech synthesis" ON)
+if (HAVE_PTHREAD)
+  option(USE_ASYNC "Support asynchronous speech synthesis" ON)
+else()
+  set(USE_ASYNC OFF)
+endif()

src/CMakeLists.txt

 target_link_libraries(
   espeak-ng-bin PRIVATE espeak-ng espeak-ng-config
 )
-add_custom_target(
-  speak-ng ALL
-  ${CMAKE_COMMAND} -E create_symlink espeak-ng ${CMAKE_CURRENT_BINARY_DIR}/speak-ng
-  COMMENT "Link espeak-ng to speak-ng"
-  DEPENDS espeak-ng-bin
-)
+if (MSVC)
+  target_sources(espeak-ng-bin PRIVATE compat/getopt.c)
+endif()
+if (NOT WIN32)
+  add_custom_target(
+    speak-ng ALL
+    ${CMAKE_COMMAND} -E create_symlink espeak-ng ${CMAKE_CURRENT_BINARY_DIR}/speak-ng
+    COMMENT "Link espeak-ng to speak-ng"
+    DEPENDS espeak-ng-bin
+  )
+endif()
 install(TARGETS espeak-ng-bin)
 install(DIRECTORY include/espeak include/espeak-ng TYPE INCLUDE)

src/libespeak-ng/CMakeLists.txt

   espeak_api.c
 )
 
-target_compile_options(espeak-ng PRIVATE
-  "-fPIC"
-  "-fvisibility=hidden"
-  "-fno-exceptions"
-  "-fwrapv"
-
-  "-pedantic"
-
-  "-Wunused-parameter"
-  "-Wunused"
-  "-Wuninitialized"
-  "-Wreturn-type"
-  "-Wmissing-prototypes"
-  "-Wint-conversion"
-  "-Wimplicit"
-)
-target_compile_definitions(espeak-ng PRIVATE "LIBESPEAK_NG_EXPORT")
+if (NOT MSVC)
+  target_compile_options(espeak-ng PRIVATE
+    "-fPIC"
+    "-fvisibility=hidden"
+    "-fno-exceptions"
+    "-fwrapv"
+
+    "-pedantic"
+
+    "-Wunused-parameter"
+    "-Wunused"
+    "-Wuninitialized"
+    "-Wreturn-type"
+    "-Wmissing-prototypes"
+    "-Wint-conversion"
+    "-Wimplicit"
+  )
+endif()
+target_compile_definitions(espeak-ng PRIVATE "LIBESPEAK_NG_EXPORT=1")
+if (NOT BUILD_SHARED_LIBS)
+  target_compile_definitions(espeak-ng INTERFACE "LIBESPEAK_NG_EXPORT=1")
+endif()
 
 if (USE_ASYNC)
   target_sources(espeak-ng PRIVATE
   target_include_directories(espeak-ng PRIVATE ${PCAUDIO_INC})
 endif()
 
-target_link_libraries(espeak-ng PRIVATE espeak-ng-config ucd m)
+target_link_libraries(espeak-ng PRIVATE espeak-ng-config ucd)
+if (NOT MSVC)
+  target_link_libraries(espeak-ng PRIVATE m)
+endif()
 target_link_libraries(espeak-ng PUBLIC espeak-include)
 
 install(TARGETS espeak-ng LIBRARY)

src/speechPlayer/CMakeLists.txt

   src/speechWaveGenerator.cpp
 )
 target_include_directories(speechPlayer PUBLIC include)
-target_compile_options(speechPlayer PRIVATE "-fPIC")
+if(NOT MSVC)
+  target_compile_options(speechPlayer PRIVATE "-fPIC")
+endif()
 install(TARGETS speechPlayer ARCHIVE)