Bug#1124446: glib2.0: reinstate nosysprof build profile

[Helmut Grohne]

Source: glib2.0
Version: 2.86.3-2
Severity: important
Justification: breaks architecture bootstrap
User: helmutg at debian.org
Usertags: rebootstrap

glib2.0 dropped the nosysprof build profile stating that there no longer
is a cycle with glib2.0.

 * libsysprof-capture-4-dev is built from sysprof.
 * sysprof Build-Depends: libglib2.0-dev <!pkg.sysprof.nounwind>.

This is a direct two-cycle that possible can be broken via the nounwind
profile, but nosysprof is what we practically use now.

sysprof also Build-Depends on binutils-dev. This dependency makes it
unsuitable for cross building. Please defer the removal of the profile
until this dependency is resolved at least.

Helmut