FILE *f;
struct c_pch_validity v;
void *target_validity;
+ static const char partial_pch[IDENT_LENGTH] = "gpcWrite";
if (! pch_file)
return;
f = fopen (pch_file, "w+b");
if (f == NULL)
- fatal_error ("can't open %s: %m", pch_file);
+ fatal_error ("can't create precompiled header %s: %m", pch_file);
pch_outfile = f;
if (strlen (host_machine) > 255 || strlen (target_machine) > 255
v.pch_init = &pch_init;
target_validity = targetm.get_pch_validity (&v.target_data_length);
- if (fwrite (get_ident(), IDENT_LENGTH, 1, f) != 1
+ if (fwrite (partial_pch, IDENT_LENGTH, 1, f) != 1
|| fwrite (&v, sizeof (v), 1, f) != 1
|| fwrite (host_machine, v.host_machine_length, 1, f) != 1
|| fwrite (target_machine, v.target_machine_length, 1, f) != 1
gt_pch_save (pch_outfile);
cpp_write_pch_state (parse_in, pch_outfile);
+ if (fseek (pch_outfile, 0, SEEK_SET) != 0
+ || fwrite (get_ident (), IDENT_LENGTH, 1, pch_outfile) != 1)
+ fatal_error ("can't write %s: %m", pch_file);
+
fclose (pch_outfile);
}