musl: fix getent went built on stage 0 against glibc

which doesn't provide strlcpy() even if you _BSD_SOURCE

Signed-off-by: Alejandro Mery <amery@geeks.cl>

base/musl/getent.c

@@ -95,6 +95,19 @@ static int parsenum(const char *word, unsigned long *result)
 	return 1;
 }
 
+#if defined(__GNU_LIBRARY__)
+static inline size_t strlcpy(char *dest, const char *src, size_t size)
+{
+	size_t ret = strlen(src);
+	if (size) {
+		size_t len = (ret >= size) ? size - 1 : ret;
+		memcpy(dest, src, len);
+		dest[len] = '\0';
+	}
+	return ret;
+}
+#endif
+
 /*
  * printfmtstrings --
  *	vprintf(format, ...),