after b46054b374 ("xdiff: use git-compat-util", 2019-04-11), two system
headers added in 2012 to xutils where no longer needed and could conflict
as shown below:

In file included from xdiff/xinclude.h:26:0,
                 from xdiff/xutils.c:25:
./git-compat-util.h:4:0: warning: "_FILE_OFFSET_BITS" redefined
 #define _FILE_OFFSET_BITS 64

In file included from /usr/include/limits.h:37:0,
                 from xdiff/xutils.c:23:
/usr/include/sys/feature_tests.h:231:0: note: this is the location of the previous definition
 #define _FILE_OFFSET_BITS 32

make sure git-compat-util.h is the first header (through xinclude.h)

Signed-off-by: Carlo Marcelo Arenas Belón <redacted>
---
 xdiff/xutils.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/xdiff/xutils.c b/xdiff/xutils.c
index 963e1c58b9..cfa6e2220f 100644
--- a/xdiff/xutils.c
+++ b/xdiff/xutils.c

@@ -20,13 +20,9 @@
  *
  */
 
-#include <limits.h>
-#include <assert.h>
 #include "xinclude.h"
 
 
-
-
 long xdl_bogosqrt(long n) {
 	long i;
 

-- 
2.22.0