Hi,
I'm maintaining a package (geomview) whose source is free, but parts
of it require a non-free library (xforms) to compile. Currently, the
debian source package builds a single package that omits the programs
that require xforms. There is a wishlist bug requesting that a second
package be created containing the extra bits. That seems like a
reasonable request. How do I do it?
The current geomview package is in "main", because it is DFSG free.
The second package, however, would need to be in "contrib", since it
uses the non-free "xforms" package. To me, the main problem is that I
don't want to build the second ("geomview-contrib") package
unconditionally, because of the autobuilders. I'd like to have the
default behaviour of running "dpkg-buildpackage" to be that only the
main geomview package is built. But one should be able to trigger a
build of both the main and the contrib packages.
Is there a recommended way to achieve this?
I thought about using a special target. But the building scripts,
like "dpkg-buildpackage" or "debuild" seem to only operate on the
"binary" target of debian/rules. Using a special target becomes
awkward: you'd have to sign the packages by hand, for example.
Instead, I settled on using an environment variable to conditionally
define the "binary" target, as follows:
ifeq (contrib,$(findstring contrib,$(DEB_BUILD_OPTIONS)))
binary-arch: binary-geomview binary-geomview-contrib
else
binary-arch: binary-geomview
endif
This seems to do precisely what I want. But is using
DEB_BUILD_OPTIONS okay? If so, is there a string that is generally
used to trigger builds of optional packages?
-Steve
P.S. Can I do anything about the different "Build-Depends"
requirements for the contrib package?
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