Index: devel/libdap/Makefile
===================================================================
--- devel/libdap/Makefile	(revision 412507)
+++ devel/libdap/Makefile	(working copy)
@@ -18,6 +18,7 @@
 		libxml2.so:textproc/libxml2
 
 GNU_CONFIGURE=	yes
+CONFIGURE_ARGS=	ac_cv_type_max_align_t=yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 USES=		bison charsetfix gmake libtool localbase pathfix