--- a/src/astra/core/child.c
+++ b/src/astra/core/child.c
@@ -468,7 +468,7 @@ void asc_child_close(asc_child_t *child)
             {
                 const int signum = WTERMSIG(status);
                 asc_log_debug(MSG("caught signal %d (%s)")
-                              , signum, sys_siglist[signum]);
+                              , signum, strsignal(signum));
 
                 status = 128 + signum;
             }
--- a/src/astra/core/spawn.c
+++ b/src/astra/core/spawn.c
@@ -150,8 +150,8 @@ static
 void perror_s(const char *s)
 {
     const char *msg = "Unknown error";
-    if (errno < sys_nerr && sys_errlist[errno] != NULL)
-        msg = sys_errlist[errno];
+    if (strerrordesc_np(errno) != NULL)
+        msg = strerror(errno);
 
     size_t slen;
     if (s != NULL && (slen = strlen_s(s)))