Memory exhausted error

[lexxmark.dev]

I’m porting flex/bison on windows and build M4 code inside executable.   After upgrading gnulibs I caught a runtime error “memory exhausted” in macro.c file.   …   if (use_argc_stack)     obstack_free (&argc_stack, argv[0]);   else     obstack_free (&arguments, NULL);   obstack_blank (&argv_stack, -argc * sizeof (token_data *)); << crash here!!! Line 390 }   It seems now obstack_blank function doesn’t allow negative numbers (see /lib/obstack.h file) Because obstack.temp.i has type as size_t (it was ptr_diff_t before).   Could you verify the following line works as expected in Linux?     obstack_blank (&argv_stack, -argc * sizeof (token_data *));   Best regards,    Alex