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Fix builds on older FreeBSD versions and/or non-FreeBSD machines:

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don't use _Static_assert unconditionally.
This commit is contained in:
Marcel Moolenaar 2014-07-23 18:05:39 +00:00
parent 6a1cf96b4a
commit 7ea7f92899
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269021
1 changed files with 8 additions and 0 deletions
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8
usr.bin/mkimg/vhd.c
View file

@ -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)