Perform first-aid: unbreak the build for amd64 and ia64 by patching

osunixxf.c on the fly. This avoids having to pull it from the vendor
branch or otherwise pollute the repository with new short-lived files.

This should hold until the real fix arrives.

usr.sbin/acpi/acpidb/Makefile

@@ -2,7 +2,7 @@
 
 PROG=	acpidb
 SRCS+=	acpidb.c
-SRCS+=	osunixxf.c
+SRCS+=	osunixxf-xxx.c
 SRCS+=	dbcmds.c dbdisply.c dbexec.c dbfileio.c \
 	dbhistry.c dbinput.c dbstats.c dbutils.c \
 	dbxface.c dmbuffer.c dmnames.c dmobject.c \
@@ -39,4 +39,8 @@ MAN=	acpidb.8
 CFLAGS+= -DACPI_APPLICATION -DACPI_DEBUG_OUTPUT -DACPI_DEBUGGER \
 	-DACPI_DISASSEMBLER
 
+CLEANFILES+= osunixxf-xxx.c
+osunixxf-xxx.c: osunixxf.c
+	cat ${.ALLSRC} | sed -e 's/UINT32 *length/ACPI_SIZE length/g' -e 's/UINT32 *size/ACPI_SIZE size/g' -e 's/(UINT32) where/(uintptr_t)where/g' > ${.TARGET}
+
 .include <bsd.prog.mk>