I can get 'make check' to work, but 'make distcheck'
fails with a message
In file included from ../../src/test-all.cpp:483:
../../src/color-profile-test.h:8:26: test-helpers.h: No such file or
It seems to have unpacked the tarball, configured and 'made' it, and
test-helpers.h is properly included in the result of make dist,
so there must be a problem with your installation (not everything
svn updated, no autogen.sh + configure done).