kconfig: reference environment variables directly and remove 'option env='

[carl9170fw.git] / config / confdata.c

diff --git a/config/confdata.c b/config/confdata.c
index 94c5efa68912772b3b4ccade24c4c4073382978c..d9f0fcae803623f1815bcf3fb4327a1b434a745e 100644 (file)
--- a/config/confdata.c
+++ b/config/confdata.c
@@ -81,39 +81,13 @@ const char *conf_get_autoconfig_name(void)
        return name ? name : "include/generated/auto.conf";
 }
 
-static char *conf_expand_value(const char *in)
-{
-       struct symbol *sym;
-       const char *src;
-       static char res_value[SYMBOL_MAXLENGTH];
-       char *dst, name[SYMBOL_MAXLENGTH];
-
-       res_value[0] = 0;
-       dst = name;
-       while ((src = strchr(in, '$'))) {
-               strncat(res_value, in, src - in);
-               src++;
-               dst = name;
-               while (isalnum(*src) || *src == '_')
-                       *dst++ = *src++;
-               *dst = 0;
-               sym = sym_lookup(name, 0);
-               sym_calc_value(sym);
-               strcat(res_value, sym_get_string_value(sym));
-               in = src;
-       }
-       strcat(res_value, in);
-
-       return res_value;
-}
-
 char *conf_get_default_confname(void)
 {
        struct stat buf;
        static char fullname[PATH_MAX+1];
        char *env, *name;
 
-       name = conf_expand_value(conf_defname);
+       name = expand_string(conf_defname);
        env = getenv(SRCTREE);
        if (env) {
                sprintf(fullname, "%s/%s", env, name);
@@ -274,7 +248,8 @@ int conf_read_simple(const char *name, int def)
                        if (expr_calc_value(prop->visible.expr) == no ||
                            prop->expr->type != E_SYMBOL)
                                continue;
-                       name = conf_expand_value(prop->expr->left.sym->name);
+                       sym_calc_value(prop->expr->left.sym);
+                       name = sym_get_string_value(prop->expr->left.sym);
                        in = zconf_fopen(name);
                        if (in) {
                                conf_message("using defaults found in %s",