diff options
| -rw-r--r-- | usr.bin/mkimg/vhd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/usr.bin/mkimg/vhd.c b/usr.bin/mkimg/vhd.c index 04d4530..af3d95e 100644 --- a/usr.bin/mkimg/vhd.c +++ b/usr.bin/mkimg/vhd.c @@ -40,6 +40,10 @@ __FBSDID("$FreeBSD$"); #include "format.h" #include "mkimg.h" +#ifndef __has_extension +#define __has_extension(x) 0 +#endif + /* * General notes: * o File is in network byte order. @@ -88,8 +92,10 @@ struct vhd_footer { uint8_t saved_state; uint8_t _reserved[427]; }; +#if __has_extension(c_static_assert) _Static_assert(sizeof(struct vhd_footer) == VHD_SECTOR_SIZE, "Wrong size for footer"); +#endif static uint32_t vhd_checksum(void *buf, size_t sz) @@ -250,8 +256,10 @@ struct vhd_dyn_header { } parent_locator[8]; char _reserved2[256]; }; +#if __has_extension(c_static_assert) _Static_assert(sizeof(struct vhd_dyn_header) == VHD_SECTOR_SIZE * 2, "Wrong size for header"); +#endif static int vhd_dyn_write(int fd) |
