+#define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
+ (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
+ || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
+ || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
+ || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
+ || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
+ || !strcmp (STR, "iquote") || !strcmp (STR, "isystem") \
+ || !strcmp (STR, "isysroot") \
+ || !strcmp (STR, "-param") || !strcmp (STR, "specs") \
+ || !strcmp (STR, "MF") || !strcmp (STR, "MT") || !strcmp (STR, "MQ") \
+ || !strcmp (STR, "fintrinsic-modules-path") || !strcmp (STR, "dumpbase"))
+
+
+/* These are exported by gcc.c. */
+extern int do_spec (const char *);
+extern void record_temp_file (const char *, int, int);
+extern void fatal (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
+extern void error (const char *, ...) ATTRIBUTE_PRINTF_1;
+extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
+extern void set_input (const char *);
+
+/* Spec files linked with gcc.c must provide definitions for these. */
+
+/* Called before processing to change/add/remove arguments. */
+extern void lang_specific_driver (int *, const char *const **, int *);
+
+/* Called before linking. Returns 0 on success and -1 on failure. */
+extern int lang_specific_pre_link (void);
+
+extern int n_infiles;
+
+/* Number of extra output files that lang_specific_pre_link may generate. */