Attempt some trickery to get building on msys on windows

Author: nbollom

CMakeLists.txt

@@ -24,6 +24,7 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
     option(WINFORMS_ENABLED "Enable native Windows interface" ON)
     set(COCOA_ENABLED OFF)
     set(NCURSES_ENABLED OFF)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     option(COCOA_ENABLED "Enable native MacOS interface" ON)
     option(NCURSES_ENABLED "Enable NCurses interface" ON)
@@ -75,4 +76,4 @@ if(${NCURSES_ENABLED})
     target_compile_definitions(pq2-ncurses PRIVATE NCURSES_ENABLED)
     target_link_libraries(pq2-ncurses pq2game pq2utils pq2gui pq2ncurses)
     target_include_directories(pq2-ncurses PRIVATE pq2game pq2utils pq2gui pq2ncurses)
-endif ()
+endif ()