1 files changed, 21 insertions, 5 deletions

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 63199cd93..31d5fbbfc 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -728,28 +728,43 @@ struct symbol *sym_find(const char *name)
         return symbol;
 }
 
+#if !defined HAVE_RE && !defined __MINGW32__
+#define HAVE_RE 1
+#endif
+
 struct symbol **sym_re_search(const char *pattern)
 {
-#ifdef __MINGW32__
-        fprintf(stderr, "NOTIMPL: sym_re_search\n");
-        exit(1);
-#else
         struct symbol *sym, **sym_arr = NULL;
         int i, cnt, size;
+#if HAVE_RE
         regex_t re;
+#else
+        /* without re support use: strstr(sym->name, upper(pattern)) */
+        /* sym->name is a config, e.g. "SHELL_ASH" or "FEATURE_UTMP" */
+        char upat[256] = {0};
+        for (i = 0; i < 255 && pattern[i]; ++i)
+                upat[i] = toupper(pattern[i]);
+#endif
 
         cnt = size = 0;
         /* Skip if empty */
         if (strlen(pattern) == 0)
                 return NULL;
+#if HAVE_RE
         if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
                 return NULL;
+#endif
 
         for_all_symbols(i, sym) {
                 if (sym->flags & SYMBOL_CONST || !sym->name)
                         continue;
+#if HAVE_RE
                 if (regexec(&re, sym->name, 0, NULL, 0))
                         continue;
+#else
+                if (!strstr(sym->name, upat))
+                        continue;
+#endif
                 if (cnt + 1 >= size) {
                         void *tmp = sym_arr;
                         size += 16;
@@ -763,10 +778,11 @@ struct symbol **sym_re_search(const char *pattern)
         }
         if (sym_arr)
                 sym_arr[cnt] = NULL;
+#if HAVE_RE
         regfree(&re);
+#endif
 
         return sym_arr;
-#endif
 }