fix _ALL_SOURCE logic to avoid possible redefinition of _GNU_SOURCE

[musl] / include / ctype.h

diff --git a/include/ctype.h b/include/ctype.h
index 8f0d168..a6f44df 100644 (file)
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -22,13 +22,18 @@ int   isxdigit(int);
 int   tolower(int);
 int   toupper(int);
 
+static __inline int __isspace(int _c)
+{
+       return _c == ' ' || (unsigned)_c-'\t' < 5;
+}
+
 #define isalpha(a) ((((unsigned)(a)|32)-'a') < 26)
 #define isdigit(a) (((unsigned)(a)-'0') < 10)
 #define islower(a) (((unsigned)(a)-'a') < 26)
 #define isupper(a) (((unsigned)(a)-'A') < 26)
 #define isprint(a) (((unsigned)(a)-0x20) < 0x5f)
 #define isgraph(a) (((unsigned)(a)-0x21) < 0x5e)
-
+#define isspace(a) __isspace(a)
 
 
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \