fix up mac includes to point to /opt/local for macports install.

scripts/build_config.mac.sh

 #!/bin/echo dot script please source
 
-GTK_PREFIX=/usr/local/gtk
+GLIB_GENMARSHAL=/opt/local/bin/glib-genmarshal
+export GLIB_GENMARSHAL
+
+GTK_PREFIX=/opt/local
+
+LIBTOOL=glibtool
+LIBTOOLIZE=glibtoolize
+
+DX_COND_doc=no
 
 LDFLAGS_args="-Xlinker -bind_at_load"
 

scripts/build_config.mac18480i.sh

 #!/bin/echo dot script please source
 
 
-GLIB_GENMARSHAL=/usr/local/gtk/bin/glib-genmarshal
-export GLIB_GENMARSHAL
\ No newline at end of file
+GLIB_GENMARSHAL=/opt/local/bin/glib-genmarshal
+export GLIB_GENMARSHAL
+
+GTK_PREFIX=/opt/local
+
+LIBTOOL=glibtool
+LIBTOOLIZE=glibtoolize
+
+LDFLAGS_args="-Xlinker -bind_at_load"
+
+PATH=$GTK_PREFIX/bin:$PATH
+ACLOCAL_FLAGS="-I $GTK_PREFIX/share/aclocal"
+PKG_CONFIG=$GTK_PREFIX/bin/pkg-config
+
+UNIVERSAL_BUILD=no
+
+if [ "x$UNIVERSAL_BUILD" == "xyes" ]; then
+    ZMAP_ACEDB_VERSION_DIR=UNIVERSAL
+fi