The previous commit left confdata writing out:

CONFIG_NUMERIC_CONSTANT=

And on reading it back in, it would complain that '' was an invalid value for
that field.  I.E. "make allnoconfig && make" worked fine, but
"make allnoconfig && make menuconfig" barfed reading in the config file.

So now I have it write out "0" as the blank value.  (It's initialized to the
default value when the menu becomes visible anyway; I checked.)  That seems
to work.

diff --git a/scripts/config/confdata.c b/scripts/config/confdata.c
index 1d1b61e..78f3b20 100644 (file)
--- a/scripts/config/confdata.c
+++ b/scripts/config/confdata.c
@@ -396,21 +396,20 @@ int conf_write(const char *name)
                        case S_HEX:
                                str = sym_get_string_value(sym);
                                if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
-                                       fprintf(out, "%s=%s\n", sym->name, str);
+                                       fprintf(out, "%s=%s\n", sym->name, *str ? str : "0");
                                        if (out_h)
                                                fprintf(out_h, "#define %s 0x%s\n", sym->name, str);
                                        break;
                                }
                        case S_INT:
                                str = sym_get_string_value(sym);
-                               fprintf(out, "%s=%s\n", sym->name, str);
+                               fprintf(out, "%s=%s\n", sym->name, *str ? str : "0");
                                if (out_h)
                                        fprintf(out_h, "#define %s %s\n", sym->name, str);
                                break;
                        }
                }
 
-       next:
                if (menu->list) {
                        menu = menu->list;
                        continue;