[syslinux:elflink] fs: Include unistd.h for chdir() prototype

[syslinux-bot for Matt Fleming]

Commit-ID:  ca5c3f6b7bef941189896abde5bd6b6365c5a791
Gitweb:     http://www.syslinux.org/commit/ca5c3f6b7bef941189896abde5bd6b6365c5a791
Author:     Matt Fleming <matt.fleming at intel.com>
AuthorDate: Tue, 3 Apr 2012 16:34:25 +0100
Committer:  Matt Fleming <matt.fleming at intel.com>
CommitDate: Tue, 17 Apr 2012 11:23:41 +0100

fs: Include unistd.h for chdir() prototype

fs/lib/chdir.c: In function ‘generic_chdir_start’:
fs/lib/chdir.c:5:2: warning: implicit declaration of function ‘chdir’

Signed-off-by: Matt Fleming <matt.fleming at intel.com>

---
 core/fs/lib/chdir.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/core/fs/lib/chdir.c b/core/fs/lib/chdir.c
index 5c7b130..715284b 100644
--- a/core/fs/lib/chdir.c
+++ b/core/fs/lib/chdir.c
@@ -1,3 +1,4 @@
+#include <unistd.h>
 #include <core.h>
 
 int generic_chdir_start(void)