Inside of virAcpiParseIORTNodeHeader() there's an virReportError() which reports size of a structure using sizeof() operator. Well, it's not well documented but the returned type of sizeof() is apparently size_t but the format string uses %lu. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- Pushed under build breaker rule. Also verified this builds successfully on a 32bit ARM. src/util/viracpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/viracpi.c b/src/util/viracpi.c index 74fff0f0ac..e66df99f03 100644 --- a/src/util/viracpi.c +++ b/src/util/viracpi.c @@ -102,7 +102,7 @@ virAcpiParseIORTNodeHeader(int fd, * least size of header itself. */ if (nodeHeader->len < sizeof(*nodeHeader)) { virReportError(VIR_ERR_INTERNAL_ERROR, - _("IORT table node type %1$s has invalid length: got %2$u, expected at least %3$lu"), + _("IORT table node type %1$s has invalid length: got %2$u, expected at least %3$zu"), NULLSTR(typeStr), (unsigned int)nodeHeader->len, sizeof(*nodeHeader)); return -1; } -- 2.39.2