Add BSDI support.

From-SVN: r7794

gcc/config/i386/bsd386.h

+/* Configuration for an i386 running BSDI's BSD/386 1.1 as the target
+   machine.  */
+
+#include "i386/386bsd.h"
+
+/* We exist mostly to add -Dbsdi and such to the predefines. */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Di386 -Dbsdi -D__i386__ -D__bsdi__ -D____386BSD____ -D__386BSD__ -DBSD_NET2 -Asystem(unix) -Asystem(bsd) -Acpu(i386) -Amachine(i386)"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_UNSIGNED
+#define WCHAR_UNSIGNED 0
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32