From 45357ce64f07a3ac7d3faf99d9a0966694980e2e Mon Sep 17 00:00:00 2001
From: Aurelien Jacobs <aurel@gnuage.org>
Date: Sat, 11 Jan 2014 17:48:53 +0100
Subject: [PATCH] std: use #ifdef rather than #if where the constant may not be
 defined

---
 std.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/std.c b/std.c
index 727ee6e9..93ca9425 100644
--- a/std.c
+++ b/std.c
@@ -264,11 +264,11 @@ SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
 			driver->dev_close(sdi);
 
 		if (sdi->conn) {
-#if HAVE_LIBSERIALPORT
+#ifdef HAVE_LIBSERIALPORT
 			if (sdi->inst_type == SR_INST_SERIAL)
 				sr_serial_dev_inst_free(sdi->conn);
 #endif
-#if HAVE_LIBUSB_1_0
+#ifdef HAVE_LIBUSB_1_0
 			if (sdi->inst_type == SR_INST_USB)
 				sr_usb_dev_inst_free(sdi->conn);
 #endif