Description of problem:

Lots and lots of warnings during the compile like this:

Guestfs.c: In function 'XS_Sys__Guestfs_zfgrep':
Guestfs.c:25673:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
         g = (guestfs_h *) SvIV (*svp);
             ^
Guestfs.c: In function 'XS_Sys__Guestfs_zfgrepi':
Guestfs.c:25722:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
         g = (guestfs_h *) SvIV (*svp);
             ^
Guestfs.c: In function 'XS_Sys__Guestfs_zfile':
Guestfs.c:25769:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
         g = (guestfs_h *) SvIV (*svp);
             ^
Guestfs.c: In function 'XS_Sys__Guestfs_zgrep':
Guestfs.c:25814:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
         g = (guestfs_h *) SvIV (*svp);
             ^
Guestfs.c: In function 'XS_Sys__Guestfs_zgrepi':
Guestfs.c:25863:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
         g = (guestfs_h *) SvIV (*svp);
             ^
Note this is a 32 bit ARM platform, but I would expect that both
integers and pointers are 32 bit.

Version-Release number of selected component (if applicable):

libguestfs 1.27.59

How reproducible:

100%

Steps to Reproduce:
1. Compile libguestfs.