kconfig: Sync with upstream v4.18

This commit introduces the following upstream changes:

73d1c580f92b kconfig: loop boundary condition fix
ecd53ac2f2c6 kconfig: handle P_SYMBOL in print_symbol()
b2d00d7c61c8 kconfig: fix line numbers for if-entries in menu tree
8593080c0fcf kconfig: fix localmodconfig
2ae89c7a82ea kconfig: Avoid format overflow warning from GCC 8.1
bb6d83dde191 kbuild: Move last word of nconfig help to the previous line
d6a0c8a1326b kconfig: Add testconfig into make help output
2bece88f89fa kconfig: test: add Kconfig macro language tests
915f64901eb3 kconfig: error out if a recursive variable references itself
a702a6176e2f kconfig: add 'filename' and 'lineno' built-in variables
1d6272e6fe43 kconfig: add 'info', 'warning-if', and 'error-if' built-in functions
82bc8bd82e5c kconfig: expand lefthand side of assignment statement
ed2a22f277c6 kconfig: support append assignment operator
1175c02506ff kconfig: support simply expanded variable
9ced3bddec08 kconfig: support user-defined function and recursively expanded variable
9de071536c87 kconfig: begin PARAM state only when seeing a command keyword
2fd5b09c201e kconfig: add 'shell' built-in function
e298f3b49def kconfig: add built-in function support
137c0118a900 kconfig: make default prompt of mainmenu less specific
5b31a9746756 kconfig: remove sym_expand_string_value()
96d8e48da55a kconfig: remove string expansion for mainmenu after yyparse()
bb222ceeb327 kconfig: remove string expansion in file_lookup()
104daea149c4 kconfig: reference environment variables directly and remove 'option env='
694c49a7c01c kconfig: drop localization support
1c5af5cf9308 kconfig: refactor ncurses package checks for building mconf and nconf
b464ef583dc7 kconfig: refactor GTK+ package checks for building gconf
0b669a5076fd kconfig: refactor Qt package checks for building qconf

Signed-off-by: Chris Packham <judge.packham@gmail.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/kconfig/lkc_proto.h b/kconfig/lkc_proto.h
index 9dc8abf..a8b7a33 100644
--- a/kconfig/lkc_proto.h
+++ b/kconfig/lkc_proto.h
@@ -31,7 +31,6 @@ extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
 
 struct symbol * sym_lookup(const char *name, int flags);
 struct symbol * sym_find(const char *name);
-char *sym_expand_string_value(const char *in);
 const char * sym_escape_string_value(const char *in);
 struct symbol ** sym_re_search(const char *pattern);
 const char * sym_type_name(enum symbol_type type);
@@ -49,5 +48,19 @@ const char * sym_get_string_value(struct symbol *sym);
 
 const char * prop_get_type_name(enum prop_type type);
 
+/* preprocess.c */
+enum variable_flavor {
+	VAR_SIMPLE,
+	VAR_RECURSIVE,
+	VAR_APPEND,
+};
+void env_write_dep(FILE *f, const char *auto_conf_name);
+void variable_add(const char *name, const char *value,
+		  enum variable_flavor flavor);
+void variable_all_del(void);
+char *expand_string(const char *in);
+char *expand_dollar(const char **str);
+char *expand_one_token(const char **str);
+
 /* expr.c */
 void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);