test: Improve check-ref-missing

On linux it is impossible to check the missing references because of
argument length constraints:
make: execvp: /bin/bash: Argument list too long

Using a temporary file instead of variable expansion makes it possible
to work around this.

Makefile.refs is now required to be in lexicographical order, which
avoids ordering problems and the risk of duplicated entries (like
clipped-surface.ref.png).

3 files changed, 1367 insertions, 1381 deletions

diff --git a/test/.gitignore b/test/.gitignore
index 400ce923..dba58772 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -6,6 +6,7 @@ output
 Makefile
 Makefile.in
 ref.hash
+ref.list
 any2ppm
 .any2ppm
 .any2ppm.pid
diff --git a/test/Makefile.am b/test/Makefile.am
index ebbc230e..83d55ca6 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -2,6 +2,8 @@ include $(top_srcdir)/build/Makefile.am.common
 
 include $(top_srcdir)/test/Makefile.sources
 
+include $(top_srcdir)/test/Makefile.refs
+
 SUBDIRS=pdiff .
 
 # Then we have a collection of tests that are only run if certain
@@ -123,1357 +125,6 @@ BUILT_SOURCES += cairo-test-constructors.c
 EXTRA_DIST += $(BUILT_SOURCES) $(noinst_SCRIPTS) COPYING make-cairo-test-constructors.sh run-cairo-test-suite.sh
 CLEANFILES += $(BUILT_SOURCES)
 
-# All tests which have a reference image go here.
-REFERENCE_IMAGES = \
-	a1-bug.ref.png \
-	a1-bug.image16.ref.png \
-	a1-bug.quartz.xfail.png \
-	a1-bug.xlib.ref.png \
-	a1-image-sample.ref.png \
-	a1-image-sample.gl.xfail.png \
-	a1-mask.ref.png \
-	a1-mask-sample.ref.png \
-	a1-rasterisation-rectangles.ref.png \
-	a1-rasterisation-rectangles.quartz.xfail.png \
-	a1-rasterisation-triangles.ref.png \
-	a1-rasterisation-triangles.quartz.xfail.png \
-	a1-traps-sample.ref.png \
-	a1-traps-sample.quartz.xfail.png \
-	a8-clear.ref.png \
-	a8-clear.quartz.ref.png \
-	a8-mask.ref.png \
-	aliasing.ref.png \
-	aliasing.image16.ref.png \
-	aliasing.quartz.ref.png \
-	aliasing.xlib.ref.png \
-	alpha-similar.gl.argb32.xfail.png \
-	alpha-similar.gl.rgb24.xfail.png \
-	alpha-similar.pdf.argb32.xfail.png \
-	alpha-similar.pdf.rgb24.xfail.png \
-	alpha-similar.ps.argb32.xfail.png \
-	alpha-similar.ps.rgb24.xfail.png \
-	alpha-similar.ref.png \
-	alpha-similar.rgb24.ref.png \
-	alpha-similar.svg.argb32.xfail.png \
-	alpha-similar.svg.rgb24.xfail.png \
-	api-special-cases.ref.png \
-	arc-infinite-loop.ref.png \
-	arc-looping-dash.image16.ref.png \
-	arc-looping-dash.ps.ref.png \
-	arc-looping-dash.quartz.ref.png \
-	arc-looping-dash.ref.png \
-	big-line.ref.png \
-	big-line.image16.ref.png \
-	big-line.ps.ref.png \
-	big-line.quartz.ref.png \
-	big-line.xlib.ref.png \
-	bug-bo-rectangular.ref.png \
-	bug-bo-rectangular.image16.ref.png \
-	bug-bo-rectangular.ps.xfail.png \
-	bug-extents.image16.ref.png \
-	bug-extents.quartz.ref.png \
-	bug-extents.ps.ref.png \
-	bug-extents.ref.png \
-	bug-extents.xlib.ref.png \
-	bug-seams.ref.png \
-	bug-seams.xlib.ref.png \
-	bug-seams.xlib-fallback.ref.png \
-	bilevel-image.ref.png \
-	bitmap-font.ref.png \
-	bitmap-font.rgb24.ref.png \
-	caps-joins-alpha.image16.ref.png \
-	caps-joins-alpha.quartz.ref.png \
-	caps-joins-alpha.ref.png \
-	caps-joins-alpha.xlib.ref.png \
-	caps-joins-curve.image16.ref.png \
-	caps-joins-curve.ps.ref.png \
-	caps-joins-curve.quartz.ref.png \
-	caps-joins-curve.ref.png \
-	caps-joins-curve.xlib.ref.png \
-	caps-joins.ps.ref.png \
-	caps-joins.ref.png \
-	caps-joins.image16.ref.png \
-	caps-sub-paths.ref.png \
-	caps-sub-paths.image16.ref.png \
-	caps-sub-paths.ps.ref.png \
-	caps.image16.ref.png \
-	caps.ps.ref.png \
-	caps.ref.png \
-	clear.argb32.ref.png \
-	clear.rgb24.ref.png \
-	clear.pdf.argb32.ref.png \
-	clear.ps.argb32.ref.png \
-	clear.quartz.argb32.ref.png \
-	clear.quartz.rgb24.ref.png \
-	clear.svg12.argb32.xfail.png \
-	clear.svg12.rgb24.xfail.png \
-	clear-source.ref.png \
-	clear-source.image16.ref.png \
-	clear-source.ps.xfail.png \
-	clear-source.pdf.xfail.png \
-	clip-all.ref.png \
-	clip-contexts.ref.png \
-	clip-device-offset.argb32.ref.png \
-	clip-device-offset.rgb24.ref.png \
-	clip-disjoint.ref.png \
-	clip-disjoint.image16.ref.png \
-	clip-disjoint.ps.ref.png \
-	clip-disjoint.quartz.ref.png \
-	clip-disjoint.xlib.ref.png \
-	clip-empty.ref.png \
-	clip-empty-group.ref.png \
-	clip-empty-save.ref.png \
-	clip-fill.ref.png \
-	clip-fill.image16.ref.png \
-	clip-fill.ps.xfail.png \
-	clip-fill.quartz.ref.png \
-	clip-fill.xlib.ref.png \
-	clip-fill.xlib-fallback.ref.png \
-	clip-fill-eo-unbounded.image16.ref.png \
-	clip-fill-eo-unbounded.argb32.ref.png \
-	clip-fill-eo-unbounded.rgb24.ref.png \
-	clip-fill-eo-unbounded.quartz.argb32.ref.png \
-	clip-fill-eo-unbounded.quartz.rgb24.ref.png \
-	clip-fill-eo-unbounded.svg12.rgb24.xfail.png \
-	clip-fill-eo-unbounded.xlib.argb32.ref.png \
-	clip-fill-eo-unbounded.xlib.rgb24.ref.png \
-	clip-fill-eo-unbounded.xlib-fallback.rgb24.ref.png \
-	clip-fill-no-op.image16.ref.png \
-	clip-fill-no-op.ref.png \
-	clip-fill-nz-unbounded.image16.ref.png \
-	clip-fill-nz-unbounded.argb32.ref.png \
-	clip-fill-nz-unbounded.rgb24.ref.png \
-	clip-fill-nz-unbounded.quartz.argb32.ref.png \
-	clip-fill-nz-unbounded.quartz.rgb24.ref.png \
-	clip-fill-nz-unbounded.svg12.rgb24.xfail.png \
-	clip-fill-nz-unbounded.xlib.argb32.ref.png \
-	clip-fill-nz-unbounded.xlib.rgb24.ref.png \
-	clip-fill-nz-unbounded.xlib-fallback.rgb24.ref.png \
-	clip-fill-rule-pixel-aligned.ref.png \
-	clip-fill-rule-pixel-aligned.rgb24.ref.png \
-	clip-fill-rule.image16.ref.png \
-	clip-fill-rule.pdf.argb32.ref.png \
-	clip-fill-rule.ps.argb32.ref.png \
-	clip-fill-rule.ps.rgb24.ref.png \
-	clip-fill-rule.quartz.rgb24.ref.png \
-	clip-fill-rule.ref.png \
-	clip-fill-rule.rgb24.ref.png \
-	clip-fill-rule.test-paginated.rgb24.ref.png \
-	clip-fill-rule.xlib.rgb24.ref.png \
-	clip-group-shapes-aligned-rectangles.ref.png \
-	clip-group-shapes-unaligned-rectangles.ref.png \
-	clip-group-shapes-unaligned-rectangles.xlib.ref.png \
-	clip-group-shapes-circles.ref.png \
-	clip-group-shapes-circles.quartz.ref.png \
-	clip-group-shapes-circles.xlib.ref.png \
-	clip-image.image16.ref.png \
-	clip-image.ref.png \
-	clip-image.ps.ref.png \
-	clip-nesting.pdf.argb32.ref.png \
-	clip-nesting.ps.argb32.ref.png \
-	clip-nesting.ps.rgb24.ref.png \
-	clip-nesting.quartz.argb32.ref.png \
-	clip-nesting.quartz.rgb24.ref.png \
-	clip-nesting.ref.png \
-	clip-nesting.rgb24.ref.png \
-	clip-nesting.test-paginated.rgb24.ref.png \
-	clip-nesting.xlib.rgb24.ref.png \
-	clip-operator.image16.ref.png \
-	clip-operator.gl.argb32.ref.png \
-	clip-operator.pdf.argb32.ref.png \
-	clip-operator.pdf.rgb24.ref.png \
-	clip-operator.ps2.rgb24.ref.png \
-	clip-operator.ps3.argb32.ref.png \
-	clip-operator.ps3.ref.png \
-	clip-operator.ps3.rgb24.ref.png \
-	clip-operator.quartz.argb32.ref.png \
-	clip-operator.quartz.rgb24.ref.png \
-	clip-operator.ref.png \
-	clip-operator.rgb24.ref.png \
-	clip-operator.svg12.argb32.xfail.png \
-	clip-operator.svg12.rgb24.xfail.png \
-	clip-operator.test-paginated.argb32.ref.png \
-	clip-operator.xlib-fallback.ref.png \
-	clip-operator.xlib.ref.png \
-	clip-operator.xlib.rgb24.ref.png \
-	clip-unbounded.ref.png \
-	clip-unbounded.rgb24.ref.png \
-	clip-unbounded.svg12.rgb24.xfail.png \
-	clip-unbounded.pdf.rgb24.xfail.png \
-	clip-unbounded.pdf.argb32.xfail.png \
-	clipped-surface.image16.ref.png \
-	clipped-surface.ref.png \
-	clip-push-group.image16.ref.png \
-	clip-push-group.pdf.ref.png \
-	clip-push-group.ps.ref.png \
-	clip-push-group.quartz.ref.png \
-	clip-push-group.ref.png \
-	clip-push-group.svg.ref.png \
-	clip-push-group.xlib.ref.png \
-	clip-shape.image16.ref.png \
-	clip-shape.ref.png \
-	clip-shape.ps.ref.png \
-	clip-shape.quartz.ref.png \
-	clip-shape.xlib.ref.png \
-	clip-shape.xlib-fallback.ref.png \
-	clip-stroke.image16.ref.png \
-	clip-stroke.ref.png \
-	clip-stroke.ps.xfail.png \
-	clip-stroke.quartz.ref.png \
-	clip-stroke.xlib.ref.png \
-	clip-stroke.xlib-fallback.ref.png \
-	clip-stroke-no-op.image16.ref.png \
-	clip-stroke-no-op.ref.png \
-	clip-stroke-unbounded.image16.rgb24.ref.png \
-	clip-stroke-unbounded.argb32.ref.png \
-	clip-stroke-unbounded.rgb24.ref.png \
-	clip-stroke-unbounded.quartz.argb32.ref.png \
-	clip-stroke-unbounded.quartz.rgb24.ref.png \
-	clip-stroke-unbounded.svg12.rgb24.xfail.png \
-	clip-stroke-unbounded.xlib.argb32.ref.png \
-	clip-stroke-unbounded.xlib.rgb24.ref.png \
-	clip-stroke-unbounded.xlib-fallback.rgb24.ref.png \
-	clip-text.image16.ref.png \
-	clip-text.ref.png \
-	clip-text.ps.xfail.png \
-	clip-text.quartz.ref.png \
-	clip-text.svg.ref.png \
-	clip-text.xlib.ref.png \
-	clip-twice.image16.ref.png \
-	clip-twice.pdf.argb32.ref.png \
-	clip-twice.ps.argb32.ref.png \
-	clip-twice.ps.rgb24.ref.png \
-	clip-twice.quartz.argb32.ref.png \
-	clip-twice.quartz.rgb24.ref.png \
-	clip-twice.ref.png \
-	clip-twice.rgb24.ref.png \
-	clip-twice.test-paginated.argb32.ref.png \
-	clip-twice.test-paginated.rgb24.ref.png \
-	clip-twice.xlib.ref.png \
-	clip-twice.xlib.rgb24.ref.png \
-	clip-twice-rectangle.ref.png \
-	clipped-group.image16.ref.png \
-	clipped-group.pdf.ref.png \
-	clipped-group.ps2.ref.png \
-	clipped-group.ps3.ref.png \
-	clipped-group.quartz.ref.png \
-	clipped-group.svg.ref.png \
-	clipped-group.xlib.ref.png \
-	clipped-group.xlib-fallback.ref.png \
-	clipped-group.ref.png \
-	clipped-surface.ref.png \
-	clipped-trapezoids.ref.png \
-	close-path-current-point.image16.ref.png \
-	close-path-current-point.ps.ref.png \
-	close-path-current-point.ref.png \
-	close-path.ps2.ref.png \
-	close-path.ps3.ref.png \
-	close-path.ref.png \
-	composite-integer-translate-over.image16.ref.png \
-	composite-integer-translate-over-repeat.ps2.ref.png \
-	composite-integer-translate-over-repeat.ps3.ref.png \
-	composite-integer-translate-over-repeat.ref.png \
-	composite-integer-translate-over.ps2.ref.png \
-	composite-integer-translate-over.ps3.ref.png \
-	composite-integer-translate-over.ref.png \
-	composite-integer-translate-source.image16.ref.png \
-	composite-integer-translate-source.ps2.ref.png \
-	composite-integer-translate-source.ps3.ref.png \
-	composite-integer-translate-source.ref.png \
-	composite-integer-translate-source.svg12.argb32.xfail.png \
-	composite-integer-translate-source.svg12.rgb24.xfail.png \
-	copy-path.image16.ref.png \
-	copy-path.ps.ref.png \
-	copy-path.ref.png \
-	coverage-rectangles.ref.png \
-	coverage-rectangles.xlib.xfail.png \
-	coverage-intersecting-triangles.ref.png \
-	coverage-intersecting-triangles.xlib.xfail.png \
-	coverage-intersecting-quads.ref.png \
-	coverage-intersecting-quads.xlib.xfail.png \
-	coverage-row-triangles.ref.png \
-	coverage-row-triangles.xlib.xfail.png \
-	coverage-column-triangles.ref.png \
-	coverage-column-triangles.xlib.xfail.png \
-	coverage-triangles.ref.png \
-	coverage-triangles.xlib.xfail.png \
-	create-from-png-stream.ref.png \
-	create-from-png.alpha.ref.png \
-	create-from-png.gray-alpha.ref.png \
-	create-from-png.gray.ref.png \
-	create-from-png.indexed-alpha.ref.png \
-	create-from-png.indexed.ref.png \
-	create-from-png.ref.png \
-	culled-glyphs.image16.ref.png \
-	culled-glyphs.ps.ref.png \
-	culled-glyphs.quartz.ref.png \
-	culled-glyphs.ref.png \
-	curve-to-as-line-to.ps.xfail.png \
-	curve-to-as-line-to.ref.png \
-	dash-caps-joins.image16.ref.png \
-	dash-caps-joins.ps.ref.png \
-	dash-caps-joins.quartz.xfail.png \
-	dash-caps-joins.ref.png \
-	dash-curve.image16.ref.png \
-	dash-curve.ps2.ref.png \
-	dash-curve.ps3.ref.png \
-	dash-curve.quartz.xfail.png \
-	dash-curve.ref.png \
-	dash-curve.xlib.ref.png \
-	dash-infinite-loop.ref.png \
-	dash-infinite-loop.ps.ref.png \
-	dash-no-dash.ref.png \
-	dash-offset.ref.png \
-	dash-offset-negative.ref.png \
-	dash-scale.image16.ref.png \
-	dash-scale.ps.ref.png \
-	dash-scale.quartz.ref.png \
-	dash-scale.ref.png \
-	dash-state.image16.ref.png \
-	dash-state.ps2.ref.png \
-	dash-state.ps3.ref.png \
-	dash-state.quartz.xfail.png \
-	dash-state.ref.png \
-	dash-zero-length.ps2.ref.png \
-	dash-zero-length.ps2.rgb24.ref.png \
-	dash-zero-length.ps3.ref.png \
-	dash-zero-length.ps3.rgb24.ref.png \
-	dash-zero-length.ref.png \
-	dash-zero-length.rgb24.ref.png \
-	degenerate-arc.image16.ref.png \
-	degenerate-arc.ps2.ref.png \
-	degenerate-arc.ps3.ref.png \
-	degenerate-arc.quartz.ref.png \
-	degenerate-arc.ref.png \
-	degenerate-arc.xlib.ref.png \
-	degenerate-arcs.image16.ref.png \
-	degenerate-arcs.ref.png \
-	degenerate-curve-to.image16.ref.png \
-	degenerate-curve-to.ref.png \
-	degenerate-curve-to.ps.xfail.png \
-	degenerate-curve-to.quartz.ref.png \
-	degenerate-dash.ps.xfail.png \
-	degenerate-dash.quartz.xfail.png \
-	degenerate-dash.ref.png \
-	degenerate-dash.xlib.ref.png \
-	degenerate-linear-gradient.ref.png \
-	degenerate-path.ps.argb32.xfail.png \
-	degenerate-path.ps.rgb24.xfail.png \
-	degenerate-path.quartz.argb32.xfail.png \
-	degenerate-path.quartz.rgb24.xfail.png \
-	degenerate-path.argb32.ref.png \
-	degenerate-path.rgb24.ref.png \
-	degenerate-pen.image16.ref.png \
-	degenerate-pen.ps.ref.png \
-	degenerate-pen.ref.png \
-	degenerate-pen.xlib.ref.png \
-	degenerate-radial-gradient.ref.png \
-	degenerate-rel-curve-to.image16.ref.png \
-	degenerate-rel-curve-to.ref.png \
-	degenerate-rel-curve-to.ps.ref.png \
-	degenerate-rel-curve-to.quartz.ref.png \
-	device-offset-fractional.gl.xfail.png \
-	device-offset-fractional.pdf.xfail.png \
-	device-offset-fractional.ps2.ref.png \
-	device-offset-fractional.ps3.ref.png \
-	device-offset-fractional.ref.png \
-	device-offset-positive.ref.png \
-	device-offset-positive.rgb24.ref.png \
-	device-offset-scale.ref.png \
-	device-offset-scale.svg.xfail.png \
-	device-offset.ref.png \
-	device-offset.rgb24.ref.png \
-	extended-blend.image16.ref.png \
-	extended-blend.argb32.ref.png \
-	extended-blend.rgb24.ref.png \
-	extended-blend.quartz.argb32.ref.png \
-	extended-blend.quartz.rgb24.ref.png \
-	extended-blend.svg12.argb32.xfail.png \
-	extended-blend.svg12.rgb24.xfail.png \
-	extended-blend-alpha.image16.ref.png \
-	extended-blend-alpha.argb32.ref.png \
-	extended-blend-alpha.rgb24.ref.png \
-	extended-blend-alpha.quartz.argb32.ref.png \
-	extended-blend-alpha.quartz.rgb24.ref.png \
-	extended-blend-alpha.svg12.argb32.xfail.png \
-	extended-blend-alpha.svg12.rgb24.xfail.png \
-	extend-pad-border.image16.ref.png \
-	extend-pad-border.ps.ref.png \
-	extend-pad-border.quartz.ref.png \
-	extend-pad-border.ref.png \
-	extend-pad-border.svg.xfail.png \
-	extend-pad-similar.quartz.xfail.png \
-	extend-pad-similar.ref.png \
-	extend-pad-similar.svg.xfail.png \
-	extend-pad.ps.ref.png \
-	extend-pad.quartz.xfail.png \
-	extend-pad.ref.png \
-	extend-pad.svg.xfail.png \
-	extend-reflect-similar.image16.ref.png \
-	extend-reflect-similar.ps2.ref.png \
-	extend-reflect-similar.ps3.ref.png \
-	extend-reflect-similar.ref.png \
-	extend-reflect.image16.ref.png \
-	extend-reflect.ps2.ref.png \
-	extend-reflect.ps3.ref.png \
-	extend-reflect.ref.png \
-	extend-repeat-similar.image16.ref.png \
-	extend-repeat-similar.ps2.ref.png \
-	extend-repeat-similar.ps3.ref.png \
-	extend-repeat-similar.ref.png \
-	extend-repeat.image16.ref.png \
-	extend-repeat.ps2.ref.png \
-	extend-repeat.ps3.ref.png \
-	extend-repeat.ref.png \
-	fallback-resolution.ppi144x144.ps.ref.png \
-	fallback-resolution.ppi144x144.ref.png \
-	fallback-resolution.ppi144x72.ps.ref.png \
-	fallback-resolution.ppi144x72.ref.png \
-	fallback-resolution.ppi288x288.pdf.ref.png \
-	fallback-resolution.ppi288x288.ps.ref.png \
-	fallback-resolution.ppi288x288.svg.ref.png \
-	fallback-resolution.ppi288x72.ps.ref.png \
-	fallback-resolution.ppi288x72.ref.png \
-	fallback-resolution.ppi576x576.pdf.ref.png \
-	fallback-resolution.ppi576x576.ps.ref.png \
-	fallback-resolution.ppi576x576.svg.ref.png \
-	fallback-resolution.ppi576x72.ps.ref.png \
-	fallback-resolution.ppi576x72.ref.png \
-	fallback-resolution.ppi72x144.ps.ref.png \
-	fallback-resolution.ppi72x144.ref.png \
-	fallback-resolution.ppi72x288.ps.ref.png \
-	fallback-resolution.ppi72x288.ref.png \
-	fallback-resolution.ppi72x576.ps.ref.png \
-	fallback-resolution.ppi72x576.ref.png \
-	fallback-resolution.ppi72x72.ref.png \
-	fill-alpha-pattern.image16.ref.png \
-	fill-alpha-pattern.ps3.argb32.ref.png \
-	fill-alpha-pattern.ps3.ref.png \
-	fill-alpha-pattern.ps3.rgb24.ref.png \
-	fill-alpha-pattern.quartz.ref.png \
-	fill-alpha-pattern.ref.png \
-	fill-alpha-pattern.xlib.ref.png \
-	fill-alpha.image16.ref.png \
-	fill-alpha.quartz.ref.png \
-	fill-alpha.ref.png \
-	fill-alpha.xlib.ref.png \
-	fill-and-stroke-alpha-add.image16.ref.png \
-	fill-and-stroke-alpha-add.quartz.ref.png \
-	fill-and-stroke-alpha-add.ref.png \
-	fill-and-stroke-alpha-add.svg12.xfail.png \
-	fill-and-stroke-alpha.image16.ref.png \
-	fill-and-stroke-alpha.ref.png \
-	fill-and-stroke.image16.ref.png \
-	fill-and-stroke.ps.argb32.ref.png \
-	fill-and-stroke.ps.rgb24.ref.png \
-	fill-and-stroke.quartz.argb32.ref.png \
-	fill-and-stroke.quartz.rgb24.ref.png \
-	fill-and-stroke.argb32.ref.png \
-	fill-and-stroke.rgb24.ref.png \
-	fill-and-stroke.xlib.argb32.ref.png \
-	fill-and-stroke.xlib.rgb24.ref.png \
-	fill-degenerate-sort-order.image16.ref.png \
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-	quartz-surface-source.rgb24.ref.png \
-	quartz-surface-source.argb32.ref.png \
-	quartz-surface-source.ps2.ref.png \
-	quartz-surface-source.ps3.ref.png \
-	radial-gradient.image16.ref.png \
-	radial-gradient.ref.png \
-	radial-gradient.quartz.ref.png \
-	radial-gradient-extend.ps3.ref.png \
-	radial-gradient-extend.ref.png \
-	radial-gradient-source.image16.ref.png \
-	radial-gradient-source.argb32.ref.png \
-	radial-gradient-source.rgb24.ref.png \
-	radial-gradient-source.quartz.argb32.ref.png \
-	radial-gradient-source.quartz.rgb24.ref.png \
-	radial-gradient-mask.ref.png \
-	radial-gradient-mask.image16.ref.png \
-	radial-gradient-mask.quartz.ref.png \
-	radial-gradient-mask-source.argb32.ref.png \
-	radial-gradient-mask-source.rgb24.ref.png \
-	radial-gradient-mask-source.image16.ref.png \
-	radial-gradient-mask-source.quartz.argb32.ref.png \
-	radial-gradient-mask-source.quartz.rgb24.ref.png \
-	radial-gradient-mask-source.xlib.argb32.ref.png \
-	radial-gradient-mask-source.xlib.rgb24.ref.png \
-	radial-gradient-one-stop.ref.png \
-	radial-gradient-one-stop.quartz.ref.png \
-	random-intersections-eo.image16.ref.png \
-	random-intersections-eo.ps.ref.png \
-	random-intersections-eo.quartz.ref.png \
-	random-intersections-eo.ref.png \
-	random-intersections-eo.xlib.ref.png \
-	random-intersections-nonzero.image16.ref.png \
-	random-intersections-nonzero.ref.png \
-	random-intersections-nonzero.ps.ref.png \
-	random-intersections-nonzero.quartz.ref.png \
-	random-intersections-nonzero.xlib.ref.png \
-	random-intersections-curves-eo.image16.ref.png \
-	random-intersections-curves-eo.ps.ref.png \
-	random-intersections-curves-eo.pdf.ref.png \
-	random-intersections-curves-eo.quartz.ref.png \
-	random-intersections-curves-eo.ref.png \
-	random-intersections-curves-eo.xlib.ref.png \
-	random-intersections-curves-eo.xlib-fallback.ref.png \
-	random-intersections-curves-nz.image16.ref.png \
-	random-intersections-curves-nz.ps.ref.png \
-	random-intersections-curves-nz.pdf.ref.png \
-	random-intersections-curves-nz.quartz.ref.png \
-	random-intersections-curves-nz.ref.png \
-	random-intersections-curves-nz.xlib.ref.png \
-	random-intersections-curves-nz.xlib-fallback.ref.png \
-	recording-surface-pattern.image16.ref.png \
-	recording-surface-pattern.gl.argb32.ref.png \
-	recording-surface-pattern.pdf.argb32.ref.png \
-	recording-surface-pattern.pdf.rgb24.ref.png \
-	recording-surface-pattern.ps.argb32.ref.png \
-	recording-surface-pattern.ps.rgb24.ref.png \
-	recording-surface-pattern.quartz.argb32.ref.png \
-	recording-surface-pattern.quartz.rgb24.ref.png \
-	recording-surface-pattern.ref.png \
-	recording-surface-pattern.rgb24.ref.png \
-	recording-surface-pattern.svg.argb32.ref.png \
-	recording-surface-pattern.svg.rgb24.ref.png \
-	recording-surface-pattern.xlib.argb32.ref.png \
-	recording-surface-pattern.xlib.rgb24.ref.png \
-	rectangle-rounding-error.ref.png \
-	rectilinear-dash.quartz.xfail.png \
-	rectilinear-dash.ref.png \
-	rectilinear-fill.ref.png \
-	rectilinear-grid.image16.ref.png \
-	rectilinear-grid.ref.png \
-	rectilinear-miter-limit.ps2.ref.png \
-	rectilinear-miter-limit.ps3.ref.png \
-	rectilinear-miter-limit.ref.png \
-	rectilinear-stroke.quartz.xfail.png \
-	rectilinear-stroke.ref.png \
-	reflected-stroke.image16.ref.png \
-	reflected-stroke.ps.ref.png \
-	reflected-stroke.ref.png \
-	rel-path.ps2.rgb24.ref.png \
-	rel-path.ps3.rgb24.ref.png \
-	rel-path.ref.png \
-	rel-path.rgb24.ref.png \
-	rgb24-ignore-alpha.ref.png \
-	rotate-image-surface-paint.pdf.xfail.png \
-	rotate-image-surface-paint.ps.ref.png \
-	rotate-image-surface-paint.quartz.ref.png \
-	rotate-image-surface-paint.ref.png \
-	rotate-image-surface-paint.svg.xfail.png \
-	rotate-image-surface-paint.svg.ref.png \
-	rotated-clip.image16.ref.png \
-	rotated-clip.quartz.ref.png \
-	rotated-clip.ref.png \
-	rotated-clip.ps.ref.png \
-	rotated-clip.xlib.ref.png \
-	rounded-rectangle-fill.image16.ref.png \
-	rounded-rectangle-fill.ref.png \
-	rounded-rectangle-fill.ps.ref.png \
-	rounded-rectangle-fill.quartz.ref.png \
-	rounded-rectangle-fill.xlib.ref.png \
-	rounded-rectangle-stroke.image16.ref.png \
-	rounded-rectangle-stroke.ref.png \
-	rounded-rectangle-stroke.ps.ref.png \
-	rounded-rectangle-stroke.xlib.ref.png \
-	scale-down-source-surface-paint.ref.png \
-	scale-offset-image.image16.ref.png \
-	scale-offset-image.gl.ref.png \
-	scale-offset-image.pdf.argb32.ref.png \
-	scale-offset-image.pdf.rgb24.ref.png \
-	scale-offset-image.ps.ref.png \
-	scale-offset-image.quartz.ref.png \
-	scale-offset-image.ref.png \
-	scale-offset-image.xfail.png \
-	scale-offset-image.script.xfail.png \
-	scale-offset-image.xlib.ref.png \
-	scale-offset-image.xlib-fallback.xfail.png \
-	scale-offset-similar.image16.ref.png \
-	scale-offset-similar.gl.ref.png \
-	scale-offset-similar.pdf.argb32.ref.png \
-	scale-offset-similar.pdf.rgb24.ref.png \
-	scale-offset-similar.ps.ref.png \
-	scale-offset-similar.quartz.ref.png \
-	scale-offset-similar.ref.png \
-	scale-offset-similar.xfail.png \
-	scale-offset-similar.recording.xfail.png \
-	scale-offset-similar.script.xfail.png \
-	scale-offset-similar.xlib.xfail.png \
-	scale-offset-similar.xlib-fallback.xfail.png \
-	scale-source-surface-paint.ref.png \
-	scale-source-surface-paint.rgb24.ref.png \
-	scale-source-surface-paint.pdf.argb32.xfail.png \
-	scale-source-surface-paint.pdf.rgb24.xfail.png \
-	scale-source-surface-paint.svg.argb32.xfail.png \
-	scale-source-surface-paint.svg.rgb24.xfail.png \
-	select-font-face.image16.ref.png \
-	select-font-face.ps2.ref.png \
-	select-font-face.ps3.ref.png \
-	select-font-face.quartz.ref.png \
-	select-font-face.ref.png \
-	self-copy.ps2.ref.png \
-	self-copy.ps3.ref.png \
-	self-copy.ref.png \
-	self-intersecting.ps.ref.png \
-	self-intersecting.quartz.xfail.png \
-	self-intersecting.ref.png \
-	self-intersecting.xlib.ref.png \
-	set-source.ref.png \
-	set-source.rgb24.ref.png \
-	show-glyphs-advance.image16.ref.png \
-	show-glyphs-advance.ps.ref.png \
-	show-glyphs-advance.quartz.ref.png \
-	show-glyphs-advance.ref.png \
-	show-glyphs-advance.svg.ref.png \
-	show-glyphs-many.ref.png \
-	show-text-current-point.image16.ref.png \
-	show-text-current-point.ps2.ref.png \
-	show-text-current-point.ps3.ref.png \
-	show-text-current-point.quartz.ref.png \
-	show-text-current-point.ref.png \
-	skew-extreme.ps2.ref.png \
-	skew-extreme.ps3.ref.png \
-	skew-extreme.ref.png \
-	smask-fill.image16.ref.png \
-	smask-fill.quartz.ref.png \
-	smask-fill.ref.png \
-	smask-fill.svg.ref.png \
-	smask-fill.xlib.ref.png \
-	smask-image-mask.ref.png \
-	smask-mask.image16.ref.png \
-	smask-mask.pdf.xfail.png \
-	smask-mask.quartz.ref.png \
-	smask-mask.ref.png \
-	smask-mask.svg.ref.png \
-	smask-paint.image16.ref.png \
-	smask-paint.pdf.xfail.png \
-	smask-paint.quartz.ref.png \
-	smask-paint.ref.png \
-	smask-paint.svg.ref.png \
-	smask-stroke.image16.ref.png \
-	smask-stroke.pdf.xfail.png \
-	smask-stroke.quartz.ref.png \
-	smask-stroke.ref.png \
-	smask-stroke.xlib.ref.png \
-	smask-text.image16.ref.png \
-	smask-text.pdf.ref.png \
-	smask-text.ps2.ref.png \
-	smask-text.ps3.ref.png \
-	smask-text.quartz.ref.png \
-	smask-text.ref.png \
-	smask-text.svg.ref.png \
-	smask-text.script.ref.png \
-	smask-text.xlib.ref.png \
-	smask-text.xlib-fallback.ref.png \
-	smask.image16.ref.png \
-	smask.pdf.xfail.png \
-	smask.ps.ref.png \
-	smask.quartz.ref.png \
-	smask.ref.png \
-	smask.svg.ref.png \
-	smask.script.ref.png \
-	smask.xlib.ref.png \
-	smask.xlib-fallback.ref.png \
-	solid-pattern-cache-stress.ref.png \
-	source-clip-scale.gl.ref.png \
-	source-clip-scale.pdf.ref.png \
-	source-clip-scale.ps2.argb32.ref.png \
-	source-clip-scale.ps2.rgb24.ref.png \
-	source-clip-scale.ps3.argb32.ref.png \
-	source-clip-scale.ps3.rgb24.ref.png \
-	source-clip-scale.quartz.ref.png \
-	source-clip-scale.ref.png \
-	source-clip-scale.svg.ref.png \
-	source-clip.ref.png \
-	source-surface-scale-paint.ref.png \
-	source-surface-scale-paint.rgb24.ref.png \
-	spline-decomposition.image16.ref.png \
-	spline-decomposition.pdf.ref.png \
-	spline-decomposition.ps.ref.png \
-	spline-decomposition.quartz.xfail.png \
-	spline-decomposition.ref.png \
-	spline-decomposition.svg.ref.png \
-	spline-decomposition.xlib.ref.png \
-	stroke-ctm-caps.image16.ref.png \
-	stroke-ctm-caps.ps2.ref.png \
-	stroke-ctm-caps.ps3.ref.png \
-	stroke-ctm-caps.quartz.ref.png \
-	stroke-ctm-caps.ref.png \
-	stroke-image.image16.ref.png \
-	stroke-image.pdf.ref.png \
-	stroke-image.ps.ref.png \
-	stroke-image.quartz.ref.png \
-	stroke-image.ref.png \
-	stroke-image.xlib.ref.png \
-	stroke-open-box.ref.png \
-	subsurface.ref.png \
-	subsurface.image16.ref.png \
-	subsurface.ps.ref.png \
-	subsurface.xlib.ref.png \
-	subsurface-reflect.ref.png \
-	subsurface-repeat.ref.png \
-	subsurface-image-repeat.ref.png \
-	subsurface-image-repeat.image16.ref.png \
-	subsurface-pad.ref.png \
-	subsurface-pad.quartz.xfail.png \
-	subsurface-modify-child.ref.png \
-	subsurface-modify-parent.ref.png \
-	subsurface-outside-target.argb32.ref.png \
-	subsurface-outside-target.rgb24.ref.png \
-	subsurface-similar-repeat.ref.png \
-	surface-pattern-big-scale-down.ref.png \
-	surface-pattern-big-scale-down.ps.ref.png \
-	surface-pattern-big-scale-down.quartz.ref.png \
-	surface-pattern-operator.argb32.ref.png \
-	surface-pattern-operator.rgb24.ref.png \
-	surface-pattern-operator.image16.ref.png \
-	surface-pattern-operator.xlib.argb32.ref.png \
-	surface-pattern-operator.xlib.rgb24.ref.png \
-	surface-pattern-operator.pdf.argb32.xfail.png \
-	surface-pattern-operator.pdf.rgb24.xfail.png \
-	surface-pattern-operator.quartz.argb32.ref.png \
-	surface-pattern-operator.quartz.rgb24.ref.png \
-	surface-pattern-scale-down.image16.ref.png \
-	surface-pattern-scale-down.pdf.ref.png \
-	surface-pattern-scale-down.ps2.ref.png \
-	surface-pattern-scale-down.ps3.ref.png \
-	surface-pattern-scale-down.quartz.ref.png \
-	surface-pattern-scale-down.ref.png \
-	surface-pattern-scale-down-extend-none.ref.png \
-	surface-pattern-scale-down-extend-none.quartz.ref.png \
-	surface-pattern-scale-down-extend-pad.ref.png \
-	surface-pattern-scale-down-extend-pad.quartz.xfail.png \
-	surface-pattern-scale-down-extend-reflect.ref.png \
-	surface-pattern-scale-down-extend-reflect.quartz.ref.png \
-	surface-pattern-scale-down-extend-repeat.ref.png \
-	surface-pattern-scale-down-extend-repeat.quartz.ref.png \
-	surface-pattern-scale-up.image16.ref.png \
-	surface-pattern-scale-up.pdf.ref.png \
-	surface-pattern-scale-up.ps2.ref.png \
-	surface-pattern-scale-up.ps3.ref.png \
-	surface-pattern-scale-up.quartz.xfail.png \
-	surface-pattern-scale-up.ref.png \
-	surface-pattern.image16.ref.png \
-	surface-pattern.pdf.xfail.png \
-	surface-pattern.ps.xfail.png \
-	surface-pattern.quartz.xfail.png \
-	surface-pattern.ref.png \
-	surface-pattern.svg.xfail.png \
-	svg-surface-source.image16.ref.png \
-	svg-surface-source.rgb24.ref.png \
-	svg-surface-source.argb32.ref.png \
-	svg-surface-source.svg12.argb32.xfail.png \
-	svg-surface-source.svg12.rgb24.xfail.png \
-	test-fallback16-surface-source.ps.ref.png \
-	test-fallback16-surface-source.svg12.argb32.xfail.png \
-	test-fallback16-surface-source.svg12.rgb24.xfail.png \
-	text-antialias-gray.image16.ref.png \
-	text-antialias-gray.quartz.ref.png \
-	text-antialias-gray.ref.png \
-	text-antialias-none.quartz.ref.png \
-	text-antialias-none.ref.png \
-	text-antialias-subpixel.image16.ref.png \
-	text-antialias-subpixel.quartz.ref.png \
-	text-antialias-subpixel.ref.png \
-	text-glyph-range.image16.ref.png \
-	text-glyph-range.ps.ref.png \
-	text-glyph-range.quartz.ref.png \
-	text-glyph-range.ref.png \
-	text-pattern.pdf.argb32.ref.png \
-	text-pattern.pdf.rgb24.ref.png \
-	text-pattern.ps3.argb32.ref.png \
-	text-pattern.ps3.rgb24.ref.png \
-	text-pattern.quartz.argb32.ref.png \
-	text-pattern.quartz.rgb24.ref.png \
-	text-pattern.ref.png \
-	text-pattern.rgb24.ref.png \
-	text-pattern.svg.argb32.ref.png \
-	text-pattern.svg.rgb24.ref.png \
-	text-rotate.image16.ref.png \
-	text-rotate.pdf.ref.png \
-	text-rotate.ps.ref.png \
-	text-rotate.quartz.ref.png \
-	text-rotate.ref.png \
-	text-rotate.svg.ref.png \
-	text-rotate.xlib.ref.png \
-	text-rotate.xlib-fallback.ref.png \
-	text-transform.image16.ref.png \
-	text-transform.pdf.ref.png \
-	text-transform.ps.ref.png \
-	text-transform.ref.png \
-	text-transform.svg.ref.png \
-	transforms.image16.ref.png \
-	transforms.ps2.ref.png \
-	transforms.ps3.ref.png \
-	transforms.ref.png \
-	translate-show-surface.ref.png \
-	trap-clip.image16.ref.png \
-	trap-clip.ps2.argb32.ref.png \
-	trap-clip.ps2.rgb24.ref.png \
-	trap-clip.ps3.argb32.ref.png \
-	trap-clip.ps3.rgb24.ref.png \
-	trap-clip.quartz.argb32.ref.png \
-	trap-clip.quartz.rgb24.ref.png \
-	trap-clip.ref.png \
-	trap-clip.rgb24.ref.png \
-	trap-clip.test-paginated.argb32.ref.png \
-	trap-clip.xlib.ref.png \
-	trap-clip.xlib.rgb24.ref.png \
-	twin.image16.ref.png \
-	twin.ps.ref.png \
-	twin.ref.png \
-	twin.svg.ref.png \
-	twin.xlib.ref.png \
-	twin-antialias-gray.ref.png \
-	twin-antialias-gray.image16.ref.png \
-	twin-antialias-gray.xlib.ref.png \
-	twin-antialias-none.ref.png \
-	twin-antialias-none.xlib.ref.png \
-	twin-antialias-mixed.ref.png \
-	twin-antialias-mixed.image16.ref.png \
-	twin-antialias-mixed.xlib.ref.png \
-	twin-antialias-subpixel.ref.png \
-	twin-antialias-subpixel.image16.ref.png \
-	twin-antialias-subpixel.xlib.ref.png \
-	unaligned-box.ref.png \
-	unantialiased-shapes.quartz.ref.png \
-	unantialiased-shapes.ref.png \
-	unbounded-operator.gl.argb32.xfail.png \
-	unbounded-operator.gl.rgb24.xfail.png \
-	unbounded-operator.image16.ref.png \
-	unbounded-operator.pdf.argb32.ref.png \
-	unbounded-operator.ps2.argb32.ref.png \
-	unbounded-operator.ps3.argb32.ref.png \
-	unbounded-operator.quartz.argb32.ref.png \
-	unbounded-operator.quartz.rgb24.ref.png \
-	unbounded-operator.ref.png \
-	unbounded-operator.rgb24.ref.png \
-	unbounded-operator.svg12.argb32.ref.png \
-	unbounded-operator.svg12.rgb24.xfail.png \
-	unbounded-operator.xlib.rgb24.ref.png \
-	user-font-mask.image16.ref.png \
-	user-font-mask.pdf.ref.png \
-	user-font-mask.ps2.ref.png \
-	user-font-mask.ps3.ref.png \
-	user-font-mask.ref.png \
-	user-font-mask.svg.ref.png \
-	user-font-proxy.image16.ref.png \
-	user-font-proxy.pdf.argb32.ref.png \
-	user-font-proxy.pdf.ref.png \
-	user-font-proxy.pdf.rgb24.ref.png \
-	user-font-proxy.ps.ref.png \
-	user-font-proxy.quartz.ref.png \
-	user-font-proxy.ref.png \
-	user-font-proxy.svg.ref.png \
-	user-font-proxy.xlib.ref.png \
-	user-font-rescale.image16.ref.png \
-	user-font-rescale.ps.ref.png \
-	user-font-rescale.quartz.ref.png \
-	user-font-rescale.ref.png \
-	user-font-rescale.svg.ref.png \
-	user-font.image16.ref.png \
-	user-font.pdf.ref.png \
-	user-font.ps.ref.png \
-	user-font.quartz.ref.png \
-	user-font.ref.png \
-	user-font.svg.ref.png \
-	user-font.xlib.ref.png \
-	xcb-stress-cache.ref.png \
-	xcb-surface-source.rgb24.ref.png \
-	xcb-surface-source.argb32.ref.png \
-	xcb-surface-source.image16.ref.png \
-	xcb-surface-source.ps.argb32.ref.png \
-	xcb-surface-source.ps.rgb24.ref.png \
-	xcomposite-projection.ref.png \
-	xcomposite-projection.image16.ref.png \
-	xcomposite-projection.quartz.ref.png \
-	xlib-expose-event.ref.png \
-	xlib-expose-event.image16.ref.png \
-	xlib-expose-event.ps.ref.png \
-	xlib-surface-source.rgb24.ref.png \
-	xlib-surface-source.argb32.ref.png \
-	xlib-surface-source.image16.ref.png \
-	xlib-surface-source.ps.argb32.ref.png \
-	xlib-surface-source.ps.rgb24.ref.png \
-	xlib-surface-source.svg12.argb32.xfail.png \
-	xlib-surface-source.svg12.rgb24.xfail.png \
-	white-in-noop.ref.png \
-	zero-mask.ref.png \
-	zero-mask.rgb24.ref.png \
-	zero-alpha.ref.png
-
 EXTRA_DIST +=		\
 6x13.pcf		\
 index.html		\
@@ -1720,6 +371,7 @@ VALGRIND_FLAGS = \
 CLEANFILES +=					\
 	valgrind-log				\
 	ref.hash				\
+	ref.list				\
 	png-test.png				\
 	png.out.png				\
 	create-for-stream.pdf			\
@@ -1796,41 +448,26 @@ check-ref-dups:
 # Not exactly the best script in the world...
 check-ref-missing:
 	@cd "$(srcdir)"; \
-	REFS=`git ls-files "*.ref.png" "*.xfail.png" "*.new.png"`; \
+	LANG=C; \
 	ret=true; \
-	missing=""; \
-	for i in $$REFS; do \
-	    echo "" $(REFERENCE_IMAGES) "" | grep -sq " $$i " || missing="$$missing $$i" ; \
-	done ; \
-	if test -n "$$missing"; then \
+	tail -n+2 Makefile.refs | sed 's/\\$$//' | sed 's/^\t//' | sed 's/ $$//' > ref.list; \
+	if ! (find . -name '*.ref.png' ; find . -name '*.xfail.png' ; find . -name '*.new.png' ) \
+		| cut -d/ -f2- | sort | diff -u ref.list - ; then \
 		echo "*** Error: Sanity check failed"; \
-		echo "Some reference files are not included in the distribution."; \
-		echo "You probably need to add these to Makefile.am's REFERENCE_IMAGES."; \
-		echo "Missing: $$missing"; \
+		echo "The reference images marked with '-' are not included in the distribution."; \
+		echo "You probably need to generate them and add them to git."; \
+		echo "The reference images marked with '+' are not listed in Makefile.refs."; \
+		echo "You probably need to add them there (and maybe to git)."; \
+		echo "Please remember to preserve the lexicographical order."; \
 		ret=false; \
 	fi >&2; \
-	if $$ret; then \
-	    REFS=`ls *.ref.png *.xfail.png *.new.png`; \
-	    for i in $$REFS; do \
-		echo "" $(REFERENCE_IMAGES) "" | grep -sq " $$i " || missing="$$missing $$i" ; \
-	    done ; \
-	    if test -n "$$missing"; then \
-		    echo "*** Error: Sanity check failed"; \
-		    echo "Some local reference files are not included in the distribution or been added to git."; \
-		    echo "You probably need to add these to git and Makefile.am's REFERENCE_IMAGES."; \
-		    echo "Missing: $$missing"; \
-		    ret=false; \
-	    fi >&2; \
-	fi >&2; \
-	missing=""; \
-	for i in $(REFERENCE_IMAGES); do \
-	    echo "" $$REFS "" | grep -sq " $$i " || missing="$$missing $$i" ; \
-	done ; \
-	if test -n "$$missing"; then \
+	if ! git ls-files "*.ref.png" "*.xfail.png" "*.new.png" | sort | diff -u ref.list - ; then \
 		echo "*** Error: Sanity check failed"; \
-		echo "Some reference files included in the distribution do not exist"; \
-		echo "or are not in git.  You probably want to add these to git first."; \
-		echo "Missing: $$missing"; \
+		echo "The reference images marked with '-' are not included in the distribution."; \
+		echo "You probably need to add them to git."; \
+		echo "The reference images marked with '+' are not listed in Makefile.refs."; \
+		echo "You probably need to add them there."; \
+		echo "Please remember to preserve the lexicographical order."; \
 		ret=false; \
 	fi >&2; \
 	$$ret
diff --git a/test/Makefile.refs b/test/Makefile.refs
new file mode 100644
index 00000000..d1d6c802
--- /dev/null
+++ b/test/Makefile.refs
@@ -0,0 +1,1348 @@
+REFERENCE_IMAGES = \
+	a1-bug.image16.ref.png \
+	a1-bug.quartz.xfail.png \
+	a1-bug.ref.png \
+	a1-bug.xlib.ref.png \
+	a1-image-sample.gl.xfail.png \
+	a1-image-sample.ref.png \
+	a1-mask-sample.ref.png \
+	a1-mask.ref.png \
+	a1-rasterisation-rectangles.quartz.xfail.png \
+	a1-rasterisation-rectangles.ref.png \
+	a1-rasterisation-triangles.quartz.xfail.png \
+	a1-rasterisation-triangles.ref.png \
+	a1-traps-sample.quartz.xfail.png \
+	a1-traps-sample.ref.png \
+	a8-clear.quartz.ref.png \
+	a8-clear.ref.png \
+	a8-mask.ref.png \
+	aliasing.image16.ref.png \
+	aliasing.quartz.ref.png \
+	aliasing.ref.png \
+	aliasing.xlib.ref.png \
+	alpha-similar.gl.argb32.xfail.png \
+	alpha-similar.gl.rgb24.xfail.png \
+	alpha-similar.pdf.argb32.xfail.png \
+	alpha-similar.pdf.rgb24.xfail.png \
+	alpha-similar.ps.argb32.xfail.png \
+	alpha-similar.ps.rgb24.xfail.png \
+	alpha-similar.ref.png \
+	alpha-similar.rgb24.ref.png \
+	alpha-similar.svg.argb32.xfail.png \
+	alpha-similar.svg.rgb24.xfail.png \
+	api-special-cases.ref.png \
+	arc-infinite-loop.ref.png \
+	arc-looping-dash.image16.ref.png \
+	arc-looping-dash.ps.ref.png \
+	arc-looping-dash.quartz.ref.png \
+	arc-looping-dash.ref.png \
+	big-line.image16.ref.png \
+	big-line.ps.ref.png \
+	big-line.quartz.ref.png \
+	big-line.ref.png \
+	big-line.xlib.ref.png \
+	bilevel-image.ref.png \
+	bitmap-font.ref.png \
+	bitmap-font.rgb24.ref.png \
+	bug-bo-rectangular.image16.ref.png \
+	bug-bo-rectangular.ps.xfail.png \
+	bug-bo-rectangular.ref.png \
+	bug-extents.image16.ref.png \
+	bug-extents.ps.ref.png \
+	bug-extents.quartz.ref.png \
+	bug-extents.ref.png \
+	bug-extents.xlib.ref.png \
+	bug-seams.ref.png \
+	bug-seams.xlib-fallback.ref.png \
+	bug-seams.xlib.ref.png \
+	caps-joins-alpha.image16.ref.png \
+	caps-joins-alpha.quartz.ref.png \
+	caps-joins-alpha.ref.png \
+	caps-joins-alpha.xlib.ref.png \
+	caps-joins-curve.image16.ref.png \
+	caps-joins-curve.ps.ref.png \
+	caps-joins-curve.quartz.ref.png \
+	caps-joins-curve.ref.png \
+	caps-joins-curve.xlib.ref.png \
+	caps-joins.image16.ref.png \
+	caps-joins.ps.ref.png \
+	caps-joins.ref.png \
+	caps-sub-paths.image16.ref.png \
+	caps-sub-paths.ps.ref.png \
+	caps-sub-paths.ref.png \
+	caps.image16.ref.png \
+	caps.ps.ref.png \
+	caps.ref.png \
+	clear-source.image16.ref.png \
+	clear-source.pdf.xfail.png \
+	clear-source.ps.xfail.png \
+	clear-source.ref.png \
+	clear.argb32.ref.png \
+	clear.pdf.argb32.ref.png \
+	clear.ps.argb32.ref.png \
+	clear.quartz.argb32.ref.png \
+	clear.quartz.rgb24.ref.png \
+	clear.rgb24.ref.png \
+	clear.svg12.argb32.xfail.png \
+	clear.svg12.rgb24.xfail.png \
+	clip-all.ref.png \
+	clip-contexts.ref.png \
+	clip-device-offset.argb32.ref.png \
+	clip-device-offset.rgb24.ref.png \
+	clip-disjoint.image16.ref.png \
+	clip-disjoint.ps.ref.png \
+	clip-disjoint.quartz.ref.png \
+	clip-disjoint.ref.png \
+	clip-disjoint.xlib.ref.png \
+	clip-empty-group.ref.png \
+	clip-empty-save.ref.png \
+	clip-empty.ref.png \
+	clip-fill-eo-unbounded.argb32.ref.png \
+	clip-fill-eo-unbounded.image16.ref.png \
+	clip-fill-eo-unbounded.quartz.argb32.ref.png \
+	clip-fill-eo-unbounded.quartz.rgb24.ref.png \
+	clip-fill-eo-unbounded.rgb24.ref.png \
+	clip-fill-eo-unbounded.svg12.rgb24.xfail.png \
+	clip-fill-eo-unbounded.xlib-fallback.rgb24.ref.png \
+	clip-fill-eo-unbounded.xlib.argb32.ref.png \
+	clip-fill-eo-unbounded.xlib.rgb24.ref.png \
+	clip-fill-no-op.image16.ref.png \
+	clip-fill-no-op.ref.png \
+	clip-fill-nz-unbounded.argb32.ref.png \
+	clip-fill-nz-unbounded.image16.ref.png \
+	clip-fill-nz-unbounded.quartz.argb32.ref.png \
+	clip-fill-nz-unbounded.quartz.rgb24.ref.png \
+	clip-fill-nz-unbounded.rgb24.ref.png \
+	clip-fill-nz-unbounded.svg12.rgb24.xfail.png \
+	clip-fill-nz-unbounded.xlib-fallback.rgb24.ref.png \
+	clip-fill-nz-unbounded.xlib.argb32.ref.png \
+	clip-fill-nz-unbounded.xlib.rgb24.ref.png \
+	clip-fill-rule-pixel-aligned.ref.png \
+	clip-fill-rule-pixel-aligned.rgb24.ref.png \
+	clip-fill-rule.image16.ref.png \
+	clip-fill-rule.pdf.argb32.ref.png \
+	clip-fill-rule.ps.argb32.ref.png \
+	clip-fill-rule.ps.rgb24.ref.png \
+	clip-fill-rule.quartz.rgb24.ref.png \
+	clip-fill-rule.ref.png \
+	clip-fill-rule.rgb24.ref.png \
+	clip-fill-rule.test-paginated.rgb24.ref.png \
+	clip-fill-rule.xlib.rgb24.ref.png \
+	clip-fill.image16.ref.png \
+	clip-fill.ps.xfail.png \
+	clip-fill.quartz.ref.png \
+	clip-fill.ref.png \
+	clip-fill.xlib-fallback.ref.png \
+	clip-fill.xlib.ref.png \
+	clip-group-shapes-aligned-rectangles.ref.png \
+	clip-group-shapes-circles.quartz.ref.png \
+	clip-group-shapes-circles.ref.png \
+	clip-group-shapes-circles.xlib.ref.png \
+	clip-group-shapes-unaligned-rectangles.ref.png \
+	clip-group-shapes-unaligned-rectangles.xlib.ref.png \
+	clip-image.image16.ref.png \
+	clip-image.ps.ref.png \
+	clip-image.ref.png \
+	clip-nesting.pdf.argb32.ref.png \
+	clip-nesting.ps.argb32.ref.png \
+	clip-nesting.ps.rgb24.ref.png \
+	clip-nesting.quartz.argb32.ref.png \
+	clip-nesting.quartz.rgb24.ref.png \
+	clip-nesting.ref.png \
+	clip-nesting.rgb24.ref.png \
+	clip-nesting.test-paginated.rgb24.ref.png \
+	clip-nesting.xlib.rgb24.ref.png \
+	clip-operator.gl.argb32.ref.png \
+	clip-operator.image16.ref.png \
+	clip-operator.pdf.argb32.ref.png \
+	clip-operator.pdf.rgb24.ref.png \
+	clip-operator.ps2.rgb24.ref.png \
+	clip-operator.ps3.argb32.ref.png \
+	clip-operator.ps3.ref.png \
+	clip-operator.ps3.rgb24.ref.png \
+	clip-operator.quartz.argb32.ref.png \
+	clip-operator.quartz.rgb24.ref.png \
+	clip-operator.ref.png \
+	clip-operator.rgb24.ref.png \
+	clip-operator.svg12.argb32.xfail.png \
+	clip-operator.svg12.rgb24.xfail.png \
+	clip-operator.test-paginated.argb32.ref.png \
+	clip-operator.xlib-fallback.ref.png \
+	clip-operator.xlib.ref.png \
+	clip-operator.xlib.rgb24.ref.png \
+	clip-push-group.image16.ref.png \
+	clip-push-group.pdf.ref.png \
+	clip-push-group.ps.ref.png \
+	clip-push-group.quartz.ref.png \
+	clip-push-group.ref.png \
+	clip-push-group.svg.ref.png \
+	clip-push-group.xlib.ref.png \
+	clip-shape.image16.ref.png \
+	clip-shape.ps.ref.png \
+	clip-shape.quartz.ref.png \
+	clip-shape.ref.png \
+	clip-shape.xlib-fallback.ref.png \
+	clip-shape.xlib.ref.png \
+	clip-stroke-no-op.image16.ref.png \
+	clip-stroke-no-op.ref.png \
+	clip-stroke-unbounded.argb32.ref.png \
+	clip-stroke-unbounded.image16.rgb24.ref.png \
+	clip-stroke-unbounded.quartz.argb32.ref.png \
+	clip-stroke-unbounded.quartz.rgb24.ref.png \
+	clip-stroke-unbounded.rgb24.ref.png \
+	clip-stroke-unbounded.svg12.rgb24.xfail.png \
+	clip-stroke-unbounded.xlib-fallback.rgb24.ref.png \
+	clip-stroke-unbounded.xlib.argb32.ref.png \
+	clip-stroke-unbounded.xlib.rgb24.ref.png \
+	clip-stroke.image16.ref.png \
+	clip-stroke.ps.xfail.png \
+	clip-stroke.quartz.ref.png \
+	clip-stroke.ref.png \
+	clip-stroke.xlib-fallback.ref.png \
+	clip-stroke.xlib.ref.png \
+	clip-text.image16.ref.png \
+	clip-text.ps.xfail.png \
+	clip-text.quartz.ref.png \
+	clip-text.ref.png \
+	clip-text.svg.ref.png \
+	clip-text.xlib.ref.png \
+	clip-twice-rectangle.ref.png \
+	clip-twice.image16.ref.png \
+	clip-twice.pdf.argb32.ref.png \
+	clip-twice.ps.argb32.ref.png \
+	clip-twice.ps.rgb24.ref.png \
+	clip-twice.quartz.argb32.ref.png \
+	clip-twice.quartz.rgb24.ref.png \
+	clip-twice.ref.png \
+	clip-twice.rgb24.ref.png \
+	clip-twice.test-paginated.argb32.ref.png \
+	clip-twice.test-paginated.rgb24.ref.png \
+	clip-twice.xlib.ref.png \
+	clip-twice.xlib.rgb24.ref.png \
+	clip-unbounded.pdf.argb32.xfail.png \
+	clip-unbounded.pdf.rgb24.xfail.png \
+	clip-unbounded.ref.png \
+	clip-unbounded.rgb24.ref.png \
+	clip-unbounded.svg12.rgb24.xfail.png \
+	clipped-group.image16.ref.png \
+	clipped-group.pdf.ref.png \
+	clipped-group.ps2.ref.png \
+	clipped-group.ps3.ref.png \
+	clipped-group.quartz.ref.png \
+	clipped-group.ref.png \
+	clipped-group.svg.ref.png \
+	clipped-group.xlib-fallback.ref.png \
+	clipped-group.xlib.ref.png \
+	clipped-surface.image16.ref.png \
+	clipped-surface.ref.png \
+	clipped-trapezoids.ref.png \
+	close-path-current-point.image16.ref.png \
+	close-path-current-point.ps.ref.png \
+	close-path-current-point.ref.png \
+	close-path.ps2.ref.png \
+	close-path.ps3.ref.png \
+	close-path.ref.png \
+	composite-integer-translate-over-repeat.ps2.ref.png \
+	composite-integer-translate-over-repeat.ps3.ref.png \
+	composite-integer-translate-over-repeat.ref.png \
+	composite-integer-translate-over.image16.ref.png \
+	composite-integer-translate-over.ps2.ref.png \
+	composite-integer-translate-over.ps3.ref.png \
+	composite-integer-translate-over.ref.png \
+	composite-integer-translate-source.image16.ref.png \
+	composite-integer-translate-source.ps2.ref.png \
+	composite-integer-translate-source.ps3.ref.png \
+	composite-integer-translate-source.ref.png \
+	composite-integer-translate-source.svg12.argb32.xfail.png \
+	composite-integer-translate-source.svg12.rgb24.xfail.png \
+	copy-path.image16.ref.png \
+	copy-path.ps.ref.png \
+	copy-path.ref.png \
+	coverage-column-triangles.ref.png \
+	coverage-column-triangles.xlib.xfail.png \
+	coverage-intersecting-quads.ref.png \
+	coverage-intersecting-quads.xlib.xfail.png \
+	coverage-intersecting-triangles.ref.png \
+	coverage-intersecting-triangles.xlib.xfail.png \
+	coverage-rectangles.ref.png \
+	coverage-rectangles.xlib.xfail.png \
+	coverage-row-triangles.ref.png \
+	coverage-row-triangles.xlib.xfail.png \
+	coverage-triangles.ref.png \
+	coverage-triangles.xlib.xfail.png \
+	create-from-png-stream.ref.png \
+	create-from-png.alpha.ref.png \
+	create-from-png.gray-alpha.ref.png \
+	create-from-png.gray.ref.png \
+	create-from-png.indexed-alpha.ref.png \
+	create-from-png.indexed.ref.png \
+	create-from-png.ref.png \
+	culled-glyphs.image16.ref.png \
+	culled-glyphs.ps.ref.png \
+	culled-glyphs.quartz.ref.png \
+	culled-glyphs.ref.png \
+	curve-to-as-line-to.ps.xfail.png \
+	curve-to-as-line-to.ref.png \
+	dash-caps-joins.image16.ref.png \
+	dash-caps-joins.ps.ref.png \
+	dash-caps-joins.quartz.xfail.png \
+	dash-caps-joins.ref.png \
+	dash-curve.image16.ref.png \
+	dash-curve.ps2.ref.png \
+	dash-curve.ps3.ref.png \
+	dash-curve.quartz.xfail.png \
+	dash-curve.ref.png \
+	dash-curve.xlib.ref.png \
+	dash-infinite-loop.ps.ref.png \
+	dash-infinite-loop.ref.png \
+	dash-no-dash.ref.png \
+	dash-offset-negative.ref.png \
+	dash-offset.ref.png \
+	dash-scale.image16.ref.png \
+	dash-scale.ps.ref.png \
+	dash-scale.quartz.ref.png \
+	dash-scale.ref.png \
+	dash-state.image16.ref.png \
+	dash-state.ps2.ref.png \
+	dash-state.ps3.ref.png \
+	dash-state.quartz.xfail.png \
+	dash-state.ref.png \
+	dash-zero-length.ps2.ref.png \
+	dash-zero-length.ps2.rgb24.ref.png \
+	dash-zero-length.ps3.ref.png \
+	dash-zero-length.ps3.rgb24.ref.png \
+	dash-zero-length.ref.png \
+	dash-zero-length.rgb24.ref.png \
+	degenerate-arc.image16.ref.png \
+	degenerate-arc.ps2.ref.png \
+	degenerate-arc.ps3.ref.png \
+	degenerate-arc.quartz.ref.png \
+	degenerate-arc.ref.png \
+	degenerate-arc.xlib.ref.png \
+	degenerate-arcs.image16.ref.png \
+	degenerate-arcs.ref.png \
+	degenerate-curve-to.image16.ref.png \
+	degenerate-curve-to.ps.xfail.png \
+	degenerate-curve-to.quartz.ref.png \
+	degenerate-curve-to.ref.png \
+	degenerate-dash.ps.xfail.png \
+	degenerate-dash.quartz.xfail.png \
+	degenerate-dash.ref.png \
+	degenerate-dash.xlib.ref.png \
+	degenerate-linear-gradient.ref.png \
+	degenerate-path.argb32.ref.png \
+	degenerate-path.ps.argb32.xfail.png \
+	degenerate-path.ps.rgb24.xfail.png \
+	degenerate-path.quartz.argb32.xfail.png \
+	degenerate-path.quartz.rgb24.xfail.png \
+	degenerate-path.rgb24.ref.png \
+	degenerate-pen.image16.ref.png \
+	degenerate-pen.ps.ref.png \
+	degenerate-pen.ref.png \
+	degenerate-pen.xlib.ref.png \
+	degenerate-radial-gradient.ref.png \
+	degenerate-rel-curve-to.image16.ref.png \
+	degenerate-rel-curve-to.ps.ref.png \
+	degenerate-rel-curve-to.quartz.ref.png \
+	degenerate-rel-curve-to.ref.png \
+	device-offset-fractional.gl.xfail.png \
+	device-offset-fractional.pdf.xfail.png \
+	device-offset-fractional.ps2.ref.png \
+	device-offset-fractional.ps3.ref.png \
+	device-offset-fractional.ref.png \
+	device-offset-positive.ref.png \
+	device-offset-positive.rgb24.ref.png \
+	device-offset-scale.ref.png \
+	device-offset-scale.svg.xfail.png \
+	device-offset.ref.png \
+	device-offset.rgb24.ref.png \
+	extend-pad-border.image16.ref.png \
+	extend-pad-border.ps.ref.png \
+	extend-pad-border.quartz.ref.png \
+	extend-pad-border.ref.png \
+	extend-pad-border.svg.xfail.png \
+	extend-pad-similar.quartz.xfail.png \
+	extend-pad-similar.ref.png \
+	extend-pad-similar.svg.xfail.png \
+	extend-pad.ps.ref.png \
+	extend-pad.quartz.xfail.png \
+	extend-pad.ref.png \
+	extend-pad.svg.xfail.png \
+	extend-reflect-similar.image16.ref.png \
+	extend-reflect-similar.ps2.ref.png \
+	extend-reflect-similar.ps3.ref.png \
+	extend-reflect-similar.ref.png \
+	extend-reflect.image16.ref.png \
+	extend-reflect.ps2.ref.png \
+	extend-reflect.ps3.ref.png \
+	extend-reflect.ref.png \
+	extend-repeat-similar.image16.ref.png \
+	extend-repeat-similar.ps2.ref.png \
+	extend-repeat-similar.ps3.ref.png \
+	extend-repeat-similar.ref.png \
+	extend-repeat.image16.ref.png \
+	extend-repeat.ps2.ref.png \
+	extend-repeat.ps3.ref.png \
+	extend-repeat.ref.png \
+	extended-blend-alpha.argb32.ref.png \
+	extended-blend-alpha.image16.ref.png \
+	extended-blend-alpha.quartz.argb32.ref.png \
+	extended-blend-alpha.quartz.rgb24.ref.png \
+	extended-blend-alpha.rgb24.ref.png \
+	extended-blend-alpha.svg12.argb32.xfail.png \
+	extended-blend-alpha.svg12.rgb24.xfail.png \
+	extended-blend.argb32.ref.png \
+	extended-blend.image16.ref.png \
+	extended-blend.quartz.argb32.ref.png \
+	extended-blend.quartz.rgb24.ref.png \
+	extended-blend.rgb24.ref.png \
+	extended-blend.svg12.argb32.xfail.png \
+	extended-blend.svg12.rgb24.xfail.png \
+	fallback-resolution.ppi144x144.ps.ref.png \
+	fallback-resolution.ppi144x144.ref.png \
+	fallback-resolution.ppi144x72.ps.ref.png \
+	fallback-resolution.ppi144x72.ref.png \
+	fallback-resolution.ppi288x288.pdf.ref.png \
+	fallback-resolution.ppi288x288.ps.ref.png \
+	fallback-resolution.ppi288x288.svg.ref.png \
+	fallback-resolution.ppi288x72.ps.ref.png \
+	fallback-resolution.ppi288x72.ref.png \
+	fallback-resolution.ppi576x576.pdf.ref.png \
+	fallback-resolution.ppi576x576.ps.ref.png \
+	fallback-resolution.ppi576x576.svg.ref.png \
+	fallback-resolution.ppi576x72.ps.ref.png \
+	fallback-resolution.ppi576x72.ref.png \
+	fallback-resolution.ppi72x144.ps.ref.png \
+	fallback-resolution.ppi72x144.ref.png \
+	fallback-resolution.ppi72x288.ps.ref.png \
+	fallback-resolution.ppi72x288.ref.png \
+	fallback-resolution.ppi72x576.ps.ref.png \
+	fallback-resolution.ppi72x576.ref.png \
+	fallback-resolution.ppi72x72.ref.png \
+	fill-alpha-pattern.image16.ref.png \
+	fill-alpha-pattern.ps3.argb32.ref.png \
+	fill-alpha-pattern.ps3.ref.png \
+	fill-alpha-pattern.ps3.rgb24.ref.png \
+	fill-alpha-pattern.quartz.ref.png \
+	fill-alpha-pattern.ref.png \
+	fill-alpha-pattern.xlib.ref.png \
+	fill-alpha.image16.ref.png \
+	fill-alpha.quartz.ref.png \
+	fill-alpha.ref.png \
+	fill-alpha.xlib.ref.png \
+	fill-and-stroke-alpha-add.image16.ref.png \
+	fill-and-stroke-alpha-add.quartz.ref.png \
+	fill-and-stroke-alpha-add.ref.png \
+	fill-and-stroke-alpha-add.svg12.xfail.png \
+	fill-and-stroke-alpha.image16.ref.png \
+	fill-and-stroke-alpha.ref.png \
+	fill-and-stroke.argb32.ref.png \
+	fill-and-stroke.image16.ref.png \
+	fill-and-stroke.ps.argb32.ref.png \
+	fill-and-stroke.ps.rgb24.ref.png \
+	fill-and-stroke.quartz.argb32.ref.png \
+	fill-and-stroke.quartz.rgb24.ref.png \
+	fill-and-stroke.rgb24.ref.png \
+	fill-and-stroke.xlib.argb32.ref.png \
+	fill-and-stroke.xlib.rgb24.ref.png \
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