Index: head/sysutils/acpica-tools/Makefile
===================================================================
--- head/sysutils/acpica-tools/Makefile	(revision 471241)
+++ head/sysutils/acpica-tools/Makefile	(revision 471242)
@@ -1,35 +1,35 @@
 # $FreeBSD$
 
 PORTNAME=	acpica
-PORTVERSION=	20180508
+PORTVERSION=	20180531
 CATEGORIES=	sysutils devel
 MASTER_SITES=	https://acpica.org/sites/acpica/files/ \
 		LOCAL/jkim
 PKGNAMESUFFIX=	-tools
 DISTNAME=	${PORTNAME}-unix-${PORTVERSION}
 
 MAINTAINER=	jkim@FreeBSD.org
 COMMENT=	Tools from the ACPI Component Architecture (ACPICA) project
 
 LICENSE=	BSD3CLAUSE GPLv2
 LICENSE_COMB=	dual
 
 BROKEN_powerpc64=	fails to compile: comparison is always true due to limited range of data type
 
 USES=		gmake
 
 BUILD_WRKSRC=	${WRKSRC}/generate/unix
 
 ACPICA_TOOLS=	acpibin acpidump acpiexec acpihelp acpinames acpisrc
 ACPICA_TOOLS+=	acpixtract iasl
 
 PLIST_FILES=	${ACPICA_TOOLS:S,^,bin/,}
 
 MAKE_ARGS=	HOST=_FreeBSD NOOPT=TRUE PROGS="${ACPICA_TOOLS}"
 MAKE_ARGS+=	CC="${CC}" LEX="${FLEX}" YACC="${YACC}"
 
 do-install:
 	${INSTALL_PROGRAM} ${ACPICA_TOOLS:S,^,${BUILD_WRKSRC}/bin/,} \
 	    ${STAGEDIR}${PREFIX}/bin
 
 .include <bsd.port.mk>
Index: head/sysutils/acpica-tools/distinfo
===================================================================
--- head/sysutils/acpica-tools/distinfo	(revision 471241)
+++ head/sysutils/acpica-tools/distinfo	(revision 471242)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1525802459
-SHA256 (acpica-unix-20180508.tar.gz) = 2b81e45cb9cc5116e9bbb39f8822ff90ec44f9f2bf6fa87243e2cd7376c5f4d8
-SIZE (acpica-unix-20180508.tar.gz) = 1789517
+TIMESTAMP = 1527800364
+SHA256 (acpica-unix-20180531.tar.gz) = 8f6cdcaa4039c2b3db141117ec8223f0e1297684b8ab47839e211bddad027665
+SIZE (acpica-unix-20180531.tar.gz) = 1792272