Setup application icon for Windows build (fixes openscad#3723).

Author: t-paul

Diff for: CMakeLists.txt

@@ -728,16 +728,18 @@ endif()
 if (SNAPSHOT)
   add_definitions(-DOPENSCAD_SNAPSHOT)
   set(RESOURCE_FILES icons/icon-nightly.icns)
+  set(WINDOWS_RESOURCE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/openscad_win32-nightly.rc)
 else()
   set(RESOURCE_FILES icons/OpenSCAD.icns)
+  set(WINDOWS_RESOURCE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/openscad_win32.rc)
 endif()
 
 if(ENABLE_SPNAV)
   add_definitions(-DENABLE_SPNAV)
   list(APPEND Sources src/input/SpaceNavInputDriver.cc)
 endif()
 
-add_executable(OpenSCAD ${Sources} ${RESOURCE_FILES})
+add_executable(OpenSCAD ${Sources} ${RESOURCE_FILES} ${WINDOWS_RESOURCE_PATH})
 add_custom_command(TARGET OpenSCAD POST_BUILD
     COMMAND "${CMAKE_CURRENT_LIST_DIR}/scripts/translation-make.sh" "${SUFFIX_WITH_DASH}"
     COMMENT "Compiling language files")

Diff for: icons/openscad-nightly.ico

@@ -0,0 +1,39 @@
+# if defined(UNDER_CE)
+#  include <winbase.h>
+# else
+#  include <winver.h>
+# endif
+
+#include "winuser.h"
+1 RT_MANIFEST "scripts/winmanifest.xml"
+
+VS_VERSION_INFO VERSIONINFO
+	FILEVERSION 0,0,0,0
+	PRODUCTVERSION 0,0,0,0
+	FILEFLAGSMASK 0x3fL
+#ifdef _DEBUG
+	FILEFLAGS VS_FF_DEBUG
+#else
+	FILEFLAGS 0x0L
+#endif
+	FILEOS VOS__WINDOWS32
+	FILETYPE VFT_DLL
+	FILESUBTYPE 0x0L
+	BEGIN
+		BLOCK "StringFileInfo"
+		BEGIN
+			BLOCK "0409"
+			BEGIN
+				VALUE "CompanyName", "\0"
+				VALUE "FileDescription", "OpenSCAD Executable\0"
+				VALUE "FileVersion", "Development build\0"
+				VALUE "LegalCopyright", "Copyright (C) 2009-2021 The OpenSCAD Developers\0"
+				VALUE "OriginalFilename", "openscad.exe\0"
+				VALUE "ProductName", "OpenSCAD (Nightly)\0"
+			END
+		END
+	END
+/* End of Version info */
+
+IDI_ICON1   ICON    DISCARDABLE "icons/openscad-nightly.ico"
+IDI_ICON2   ICON    DISCARDABLE "icons/openscad_doc.ico"