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kbuild: fix a compile warning

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gcc-4.4.1:

 HOSTCC  scripts/basic/fixdep
scripts/basic/fixdep.c: In function 'traps':
scripts/basic/fixdep.c:377: warning: dereferencing type-punned pointer will break strict-aliasing rules
scripts/basic/fixdep.c:379: warning: dereferencing type-punned pointer will break strict-aliasing rules

(Apparently -fno-strict-aliasing will fix this too)

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Amerigo Wang 2009-06-10 12:48:23 -07:00 committed by Sam Ravnborg
parent f2ac5e7892
commit d067aa7415
1 changed files with 3 additions and 2 deletions
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5
scripts/basic/fixdep.c
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@ -373,10 +373,11 @@ void print_deps(void)
void traps(void) void traps(void)
{ {
static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
int *p = (int *)test;
if (*(int *)test != INT_CONF) { if (*p != INT_CONF) {
fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n", fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n",
*(int *)test); *p);
exit(2); exit(2);
} }
} }