From: Florian Forster <octo@collectd.org>
Date: Sat, 25 Feb 2012 10:42:19 +0000 (+0100)
Subject: df plugin: Fix a compiler issue with Mac OS X 10.7.
X-Git-Tag: collectd-4.10.7~22
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=ead8b249e18e5e5eff16b6260d880f4421404c4e;p=collectd.git

df plugin: Fix a compiler issue with Mac OS X 10.7.

Xcode Version 4.1 (11C74), GitHub issue #24

Change-Id: Ic6f49a95868c7f77bfb19f9c8afc87a97a1bf670
---

diff --git a/src/df.c b/src/df.c
index 9d53b0b6..22264d30 100644
--- a/src/df.c
+++ b/src/df.c
@@ -287,9 +287,11 @@ static int df_read (void)
 			 * report negative free space for user. Notice. blk_reserved
 			 * will start to diminish after this. */
 #if HAVE_STATVFS
-			/* Cast is needed to avoid compiler warnings.
+			/* Cast and temporary variable are needed to avoid
+			 * compiler warnings.
 			 * ((struct statvfs).f_bavail is unsigned (POSIX)) */
-			if (((int64_t) statbuf.f_bavail) < 0)
+			int64_t signed_bavail = (int64_t) statbuf.f_bavail;
+			if (signed_bavail < 0)
 				statbuf.f_bavail = 0;
 #elif HAVE_STATFS
 			if (statbuf.f_bavail < 0)