build dependency range

[Ole Streicher <olebole@debian.org>]

Hi,

I have a package (cpl) that in the past did build-depend from
libcfitsio3-dev, but now depends on libcfitsio-dev. I want to keep the
dependency from libcfitsio3-dev for easier backports.

The minimal version needed by cpl is 3.310.

The transition between libcfitsio-dev and libcfitsio3-dev was between
releases 3.340-3 and 3.370-1.

How do I specify this build dependency?

I tried:

Build-Depends: libcfitsio-dev (>= 3.310)
                 | libcfitsio3-dev (>= 3.310) & libcfitsio3-dev (<< 3.370-1)

and

Build-Depends: libcfitsio-dev (>= 3.310)
                 | (libcfitsio3-dev (>= 3.310), libcfitsio3-dev (<< 3.370-1))

and

Build-Depends: libcfitsio-dev (>= 3.310) | libcfitsio3-dev (>= 3.310, << 3.370)

but all produce the error

dpkg-source: error: error occurred while parsing Build-Depends

So what should I set here?