Report compiled in features in --version.

diff --git a/dhcpcd.c b/dhcpcd.c
index d9f3e13e7f5bcfa005cc383432fb62f70e08a9c1..8f1862b254418295494920baba0f2ef7da7aa6ed 100644 (file)
--- a/dhcpcd.c
+++ b/dhcpcd.c
@@ -1455,6 +1455,23 @@ main(int argc, char **argv)
                        return EXIT_SUCCESS;
                } else if (strcmp(argv[1], "--version") == 0) {
                        printf(""PACKAGE" "VERSION"\n%s\n", dhcpcd_copyright);
+                       printf("Compiled in features:"
+#ifdef INET
+                       " INET"
+#endif
+#ifdef IPV4LL
+                       " IPv4LL"
+#endif
+#ifdef INET6
+                       " INET6"
+#endif
+#ifdef DHCP6
+                       " DHCPv6"
+#endif
+#ifdef AUTH
+                       " AUTH"
+#endif
+                       "\n");
                        return EXIT_SUCCESS;
                }
        }