5 files changed, 11 insertions, 8 deletions
diff --git a/src/aio/aio_suspend.c b/src/aio/aio_suspend.c
index cb2539e9..39a1d3a2 100644
--- a/src/aio/aio_suspend.c
+++ b/src/aio/aio_suspend.c
@@ -16,7 +16,7 @@ void __aio_wake(void)
 	__wake(&seq, -1, 1);
 }
 
-int aio_suspend(struct aiocb *const cbs[], int cnt, const struct timespec *ts)
+int aio_suspend(const struct aiocb *const cbs[], int cnt, const struct timespec *ts)
 {
 	int i, last, first=1, ret=0;
 	struct timespec at;
diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index b1a9fbde..9f2d7423 100644
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -11,7 +11,8 @@ extern char **environ;
 int __posix_spawnx(pid_t *res, const char *path,
 	int (*exec)(const char *, char *const *),
 	const posix_spawn_file_actions_t *fa,
-	const posix_spawnattr_t *attr, char **argv, char **envp)
+	const posix_spawnattr_t *attr,
+	char *const argv[], char *const envp[])
 {
 	pid_t pid;
 	sigset_t oldmask;
@@ -81,7 +82,7 @@ int __posix_spawnx(pid_t *res, const char *path,
 	sigprocmask(SIG_SETMASK, (attr->__flags & POSIX_SPAWN_SETSIGMASK)
 		? &attr->__mask : &oldmask, 0);
 
-	if (envp) environ = envp;
+	if (envp) environ = (char **)envp;
 	exec(path, argv);
 	_exit(127);
 
@@ -90,7 +91,8 @@ int __posix_spawnx(pid_t *res, const char *path,
 
 int posix_spawn(pid_t *res, const char *path,
 	const posix_spawn_file_actions_t *fa,
-	const posix_spawnattr_t *attr, char **argv, char **envp)
+	const posix_spawnattr_t *attr,
+	char *const argv[], char *const envp[])
 {
 	return __posix_spawnx(res, path, execv, fa, attr, argv, envp);
 }
diff --git a/src/process/posix_spawnp.c b/src/process/posix_spawnp.c
index 7434bb69..04d768d0 100644
--- a/src/process/posix_spawnp.c
+++ b/src/process/posix_spawnp.c
@@ -4,11 +4,12 @@
 int __posix_spawnx(pid_t *, const char *,
 	int (*)(const char *, char *const *),
 	const posix_spawn_file_actions_t *,
-	const posix_spawnattr_t *, char **, char **);
+	const posix_spawnattr_t *, char *const [], char *const []);
 
 int posix_spawnp(pid_t *res, const char *file,
 	const posix_spawn_file_actions_t *fa,
-	const posix_spawnattr_t *attr, char **argv, char **envp)
+	const posix_spawnattr_t *attr,
+	char *const argv[], char *const envp[])
 {
 	return __posix_spawnx(res, file, execvp, fa, attr, argv, envp);
 }
diff --git a/src/unistd/readlink.c b/src/unistd/readlink.c
index 11f45c01..0c6d3861 100644
--- a/src/unistd/readlink.c
+++ b/src/unistd/readlink.c
@@ -1,7 +1,7 @@
 #include <unistd.h>
 #include "syscall.h"
 
-int readlink(const char *path, char *buf, size_t bufsize)
+ssize_t readlink(const char *path, char *buf, size_t bufsize)
 {
 	return syscall(SYS_readlink, path, buf, bufsize);
 }
diff --git a/src/unistd/readlinkat.c b/src/unistd/readlinkat.c
index 9565b89a..e9498650 100644
--- a/src/unistd/readlinkat.c
+++ b/src/unistd/readlinkat.c
@@ -1,7 +1,7 @@
 #include <unistd.h>
 #include "syscall.h"
 
-int readlinkat(int fd, const char *path, char *buf, size_t bufsize)
+ssize_t readlinkat(int fd, const char *path, char *buf, size_t bufsize)
 {
 	return syscall(SYS_readlinkat, fd, path, buf, bufsize);
 }