Added fix for SVG output. This brings back the original behavior

of generating scalable output.  Some libcairo update had caused
the output to use the wrong version of SVG by default, which
generates an SVG-wrapped PNG data block, which is not scalable,
and not what was intended with the "plot svg" command.

graphics/grTCairo1.c

@@ -370,9 +370,8 @@ GrTCairoPlotSVG (char *filename, MagWindow *mw)
     wind_context = tcairodata->context;
     tcairodata->surface = (cairo_surface_t *)cairo_svg_surface_create(filename,
 		(double)screenw, (double)screenh);
-    cairo_svg_surface_restrict_to_version(
-		tcairodata->surface, CAIRO_SVG_VERSION_1_2);
-
+    cairo_svg_surface_restrict_to_version(tcairodata->surface,
+		CAIRO_SVG_VERSION_1_2);
     tcairodata->context = cairo_create(tcairodata->surface);
     WindRedisplay(mw);
     WindUpdate();

tcltk/ext2sim.sh

@@ -15,7 +15,7 @@ for i in $@; do
    esac
 done
 #
-eval /home/tim/cad/lib/magic/tcl/magicdnull -dnull -noconsole -nowrapper $mgargs <<EOF
+eval /usr/local/lib/magic/tcl/magicdnull -dnull -noconsole -nowrapper $mgargs <<EOF
 drc off
 box 0 0 0 0
 ext2sim $esargs

tcltk/ext2spice.sh

@@ -15,7 +15,7 @@ for i in $@; do
    esac
 done
 #
-eval /home/tim/cad/lib/magic/tcl/magicdnull -dnull -noconsole -nowrapper $mgargs <<EOF
+eval /usr/local/lib/magic/tcl/magicdnull -dnull -noconsole -nowrapper $mgargs <<EOF
 drc off
 box 0 0 0 0
 ext2spice $esargs