[PATCH] kexec-tools, ppc64: fix build error on ppc64

[Michael Neuling]

6adc05c6e3fdbc8b9f5d915af78ca05d0a09cb17 "some kexec MIPS
improvements" broke pp64 as it turned on -Werror for all archs.

This fixes the warning and hence ppc64 building.

Signed-off-by: Michael Neuling <mikey at neuling.org>
---
I've posted a second patch to fix the issue of changing one archs
Makefile, effecting all other archs.

 kexec/arch/ppc64/fs2dt.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: kexec-tools/kexec/arch/ppc64/fs2dt.c
===================================================================
--- kexec-tools.orig/kexec/arch/ppc64/fs2dt.c
+++ kexec-tools/kexec/arch/ppc64/fs2dt.c
@@ -357,7 +357,8 @@ static void putprops(char *fn, struct di
  * Compare function used to sort the device-tree directories
  * This function will be passed to scandir.
  */
-static int comparefunc(const void *dentry1, const void *dentry2)
+static int comparefunc(const struct dirent **dentry1,
+		       const struct dirent **dentry2)
 {
 	char *str1 = (*(struct dirent **)dentry1)->d_name;
 	char *str2 = (*(struct dirent **)dentry2)->d_name;