[tracker/sam/fix-have-statvfs64-check] Use #ifdef with config.h define variable HAVE_STATVFS64

[Sam Thursfield <sthursfield src gnome org>]

commit 9d72f656c117a7328801f70eb7444b1160a5d706
Author: Sam Thursfield <sam afuera me uk>
Date:   Thu Dec 19 23:32:20 2019 +0000

    Use #ifdef with config.h define variable HAVE_STATVFS64
    
    This was causing build failures on several architectures, presumably
    since the switch to Meson build system in 2.3.0.
    
    Fixes https://gitlab.gnome.org/GNOME/tracker/issues/169

 src/libtracker-common/tracker-file-utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libtracker-common/tracker-file-utils.c b/src/libtracker-common/tracker-file-utils.c
index 57ced9142..53e39128b 100644
--- a/src/libtracker-common/tracker-file-utils.c
+++ b/src/libtracker-common/tracker-file-utils.c
@@ -253,7 +253,7 @@ tracker_file_get_mime_type (GFile *file)
 
 #define __bsize f_frsize
 
-#if HAVE_STATVFS64
+#ifdef HAVE_STATVFS64
 #define __statvfs statvfs64
 #else
 #define __statvfs statvfs