- Always accompany OSVERSION check with OPSYS check

Approved by:	portmgr blanket

lang/hla/Makefile

@@ -39,7 +39,7 @@ post-extract:
 	${MKDIR} ${WRKDIR}/stdlib && \
 	    ${TAR} -zxf ${_DISTDIR}/bsd.${PORTNAME}.tar.gz -C ${WRKDIR}/stdlib
 	${CP} ${_DISTDIR}/lex.yy.c ${WRKSRC}
-.if ${OSVERSION} < 1100077
+.if ${OPSYS} == FreeBSD && ${OSVERSION} < 1100077
 # chmod -R bug.
 # Do not use "-exec ... +", because of the same bug, it will not work.
 	@${FIND} ${WRKDIR} -type d -exec ${CHMOD} 755 {} \;