<string.h>: Make strchrnul, strcasestr, memmem available by default

FreeBSD makes them available by default, too, so there does not seem
to be a reason to restrict these functions to _GNU_SOURCE.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

diff --git a/string/string.h b/string/string.h
index 7f0f6002246b47f89a03951db43706a8158d11f9..4927879ecfd5196eb63253fcce276bbb9bde5d47 100644 (file)
--- a/string/string.h
+++ b/string/string.h
@@ -274,7 +274,7 @@ extern char *strrchr (const char *__s, int __c)
      __THROW __attribute_pure__ __nonnull ((1));
 #endif
 
-#ifdef __USE_GNU
+#ifdef __USE_MISC
 /* This function is similar to `strchr'.  But it returns a pointer to
    the closing NUL byte in case C is not found in S.  */
 # ifdef __CORRECT_ISO_CPP_STRING_H_PROTO
@@ -368,7 +368,7 @@ extern char *strtok_r (char *__restrict __s, const char *__restrict __delim,
      __THROW __nonnull ((2, 3));
 #endif
 
-#ifdef __USE_GNU
+#ifdef __USE_MISC
 /* Similar to `strstr' but this function ignores the case of both strings.  */
 # ifdef __CORRECT_ISO_CPP_STRING_H_PROTO
 extern "C++" char *strcasestr (char *__haystack, const char *__needle)
@@ -382,7 +382,7 @@ extern char *strcasestr (const char *__haystack, const char *__needle)
 # endif
 #endif
 
-#ifdef __USE_GNU
+#ifdef __USE_MISC
 /* Find the first occurrence of NEEDLE in HAYSTACK.
    NEEDLE is NEEDLELEN bytes long;
    HAYSTACK is HAYSTACKLEN bytes long.  */