remove dependency of memmove on memcpy direction

[musl] / include / unistd.h

diff --git a/include/unistd.h b/include/unistd.h
index e4e3ac5..12d153b 100644 (file)
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -144,6 +144,12 @@ void encrypt(char *, int);
 void swab(const void *, void *, ssize_t);
 #endif
 
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
+ || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE < 700)
+int usleep(unsigned);
+unsigned ualarm(unsigned, unsigned);
+#endif
+
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define L_SET 0
 #define L_INCR 1
@@ -157,8 +163,6 @@ int getpagesize(void);
 int getdtablesize(void);
 int sethostname(const char *, size_t);
 int getdomainname(char *, size_t);
-int usleep(unsigned);
-unsigned ualarm(unsigned, unsigned);
 int setgroups(size_t, const gid_t []);
 char *getpass(const char *);
 int daemon(int, int);
@@ -168,14 +172,16 @@ char *getusershell(void);
 #endif
 
 #ifdef _GNU_SOURCE
+extern char **environ;
 int setresuid(uid_t, uid_t, uid_t);
 int setresgid(gid_t, gid_t, gid_t);
 int getresuid(uid_t *, uid_t *, uid_t *);
 int getresgid(gid_t *, gid_t *, gid_t *);
 char *get_current_dir_name(void);
+int pipe2(int [2], int);
 #endif
 
-#ifdef _LARGEFILE64_SOURCE
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
 #define lseek64 lseek
 #define pread64 pread
 #define pwrite64 pwrite