From: Andreas Bießmann <andreas.de...@googlemail.com>

kwbimage uses get_current_dir_name(3) which is a gnu extension and not
available on darwin host. Fix this by converting to portable getcwd(3)
function.

This patch fixes the following error:
---8<---
  HOSTCC  tools/kwbimage.o
tools/kwbimage.c:399:16: warning: implicit declaration of function 
'get_current_dir_name' is invalid in C99 [-Wimplicit-function-declaration]
                        char *cwd = get_current_dir_name();
                                    ^
tools/kwbimage.c:399:10: warning: incompatible integer to pointer conversion 
initializing 'char *' with an expression of type 'int' [-Wint-conversion]
                        char *cwd = get_current_dir_name();
                              ^     ~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.
...
Undefined symbols for architecture x86_64:
  "_get_current_dir_name", referenced from:
      _image_headersz_v1 in kwbimage.o
ld: symbol(s) not found for architecture x86_64
--->8---

Signed-off-by: Andreas Bießmann <andreas.de...@googlemail.com>
Cc: Stefan Roese <s...@denx.de>

---

 tools/kwbimage.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index ca4fc78..8fd70ef 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -12,6 +12,7 @@
  */
 
 #include "imagetool.h"
+#include <limits.h>
 #include <image.h>
 #include <stdint.h>
 #include "kwbimage.h"
@@ -396,13 +397,14 @@ static size_t image_headersz_v1(struct image_tool_params 
*params,
 
                ret = stat(binarye->binary.file, &s);
                if (ret < 0) {
-                       char *cwd = get_current_dir_name();
+                       char cwd[PATH_MAX];
+                       memset(cwd, 0, sizeof(cwd));
+                       getcwd(cwd, sizeof(cwd));
                        fprintf(stderr,
                                "Didn't find the file '%s' in '%s' which is 
mandatory to generate the image\n"
                                "This file generally contains the DDR3 training 
code, and should be extracted from an existing bootable\n"
                                "image for your board. See 'kwbimage -x' to 
extract it from an existing image.\n",
                                binarye->binary.file, cwd);
-                       free(cwd);
                        return 0;
                }
 
-- 
1.9.3 (Apple Git-50)

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