simplify some logic in scanf and remove redundant invalid-format check

[musl] / include / ctype.h

diff --git a/include/ctype.h b/include/ctype.h
index a85e907..8f0d168 100644 (file)
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -5,6 +5,8 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 int   isalnum(int);
 int   isalpha(int);
 int   isblank(int);
@@ -30,7 +32,8 @@ int   toupper(int);
 
 
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
 
 #define __NEED_locale_t
 #include <bits/alltypes.h>