fgets: avoid arithmetic overflow when n==INT_MIN is passed

[musl] / include / features.h

diff --git a/include/features.h b/include/features.h
index 3cc3e57..85cfb72 100644 (file)
--- a/include/features.h
+++ b/include/features.h
@@ -24,6 +24,8 @@
 
 #if __STDC_VERSION__ >= 199901L || defined(__cplusplus)
 #define __inline inline
+#elif !defined(__GNUC__)
+#define __inline
 #endif
 
 #if __STDC_VERSION__ >= 201112L
@@ -33,4 +35,6 @@
 #define _Noreturn
 #endif
 
+#define __REDIR(x,y) __typeof__(x) x __asm__(#y)
+
 #endif