test:  Replace deprecated rsvg_init() in any2ppm test

As of libsvg 2.35 calling g_type_init() is sufficient.

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
test:  Handle error in fgets call in ps-eps test

Most likely this is just a theoretical problem since we just checked
feof, but this quells the following warning:

ps-eps.c:216:8: warning: ignoring return value of ‘fgets’, declared with
attribute warn_unused_result [-Wunused-result]

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
test:  Drop unused path variable in two recently added tests

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
cairo-trace:  Stringify CAIRO_STATUS_JBIG2_GLOBAL_MISSING

This error enum was added last September when JBIG2 support was added.
Support it as well in the tracing code.  This fixes this warning:

trace.c:1544:5: warning: enumeration value
‘CAIRO_STATUS_JBIG2_GLOBAL_MISSING’ not handled in switch [-Wswitch]

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
cairo-script: Error if asked to decompress with missing compression lib

This quells the following warning:

warning: enumeration value ‘LZO’ not handled in switch [-Wswitch-enum]

The LZO enum value is defined and used elsewhere, even if lzo support
isn't available.

This situation might arise if cairo scripts were generated on one system
with lzo, and then replayed on a system without it.  For now simply
error out if this occurs.

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
cairo-script: Compare status with CSI enums

CSI_STATUS_SUCCESS is defined as equivalent to CAIRO_STATUS_SUCCESS.
We should prefer the former when comparing against csi_status_t
variables, else we'll get a warning:

cairo-script-interpreter.c:637:23: warning: comparison between
‘csi_status_t’ and ‘enum _cairo_status’ [-Wenum-compare]

Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>