Windows: Disable dynamic linking/loading of winsock dll.

This *preliminary* commit disables dynamic linking/loading of winsock
(ws2_32.dll) and links it statically to fluid and all FLTK test
programs. This is done by conditional code (#if 0) that disables the
old code and #defines some macros. This *must* be removed and replaced
with the original socket interface once the code has proved to work as
expected.

Note: example programs in the examples/ folder are not yet modified.
Todo: check and fix examples/Makefile if necessary.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12947 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

src/CMakeLists.txt

@@ -504,7 +504,7 @@ if (USE_SDL)
 endif(USE_SDL)
 
 if (WIN32)
-    list (APPEND OPTIONAL_LIBS comctl32)
+    list (APPEND OPTIONAL_LIBS comctl32 ws2_32)
 endif (WIN32)
 
 if (FLTK_HAVE_CAIRO)

src/Fl_win32.cxx

@@ -134,6 +134,12 @@ static bool initial_clipboard = true;
 # define SOCKET int
 #endif
 
+// Disable dynamic linking/loading of Winsock DLL (STR #3454)
+// *FIXME* The old code should be entirely removed when the issue
+// is finally resolved.
+
+#if (0) // *FIXME* dynamic loading of Winsock DLL (ws2_32.dll)
+
 // note: winsock2.h has been #include'd in Fl.cxx
 #define WSCK_DLL_NAME "WS2_32.DLL"
 
@@ -155,6 +161,21 @@ static HMODULE get_wsock_mod() {
   return s_wsock_mod;
 }
 
+#else // static linking of ws2_32.dll
+
+// *FIXME* These defines and the dummy function get_wsock_mod() must be
+// *removed* when the issue (STR #3454) is finally resolved. The code that
+// uses these defines and get_wsock_mod() must be modified to use the
+// official socket interface (select() and FL_ISSET).
+
+#define fl_wsk_fd_is_set FD_ISSET
+#define s_wsock_select select
+static int get_wsock_mod() {
+  return 1;
+}
+
+#endif // dynamic/static linking of ws2_32.dll (see above and STR #3454)
+
 /*
  * Dynamic linking of imm32.dll
  * This library is only needed for a hand full (four ATM) functions relating to