Provide a better(?) solution to the windows GDI problem

src/FDM/LaRCsim/LaRCsimIC.cxx

@@ -43,10 +43,6 @@ SG_USING_STD(cout);
 SG_USING_STD(endl);
 
 
-// Make Cygwin and MSVC builds happy
-#define NOGDI
-
-
 LaRCsimIC::LaRCsimIC(void) {
   vt=vtg=vw=vc=ve=0;
   mach=0;

src/FDM/LaRCsim/ls_generic.h

@@ -81,6 +81,13 @@ extern "C" {
 
 typedef struct {
 
+/*
+ * Needed for windows builds
+ */
+#ifdef ALpha
+#undef Alpha
+#endif
+
 /*================== Mass properties and geometry values ==================*/
 	
     DATA    mass, i_xx, i_yy, i_zz, i_xz;	/* Inertias */