Действительно ли безопасно назвать CFRunLoopStop от другого потока?

apt-rdepends делает это, без установка 50 + библиотеки хлама как ubuntu-dev-tools.

durr@scraper:~$ apt-rdepends mercurial
Reading package lists... Done
Building dependency tree
Reading state information... Done
mercurial
  Depends: libc6 (>= 2.14)
  Depends: mercurial-common (= 2.8.2-1ubuntu1)
  Depends: python (<< 2.8)
  Depends: ucf (>= 2.0020)
libc6
  Depends: libgcc1
libgcc1
  Depends: gcc-4.9-base (= 4.9-20140406-0ubuntu1)
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
gcc-4.9-base
multiarch-support
  Depends: libc6 (>= 2.3.6-2)
mercurial-common
  Depends: python (<< 2.8)
  Depends: python:any (>= 2.7.1-0ubuntu2)
python
  Depends: libpython-stdlib (= 2.7.5-5ubuntu3)
  Depends: python-minimal (= 2.7.5-5ubuntu3)
  Depends: python2.7 (>= 2.7.5-1~)
libpython-stdlib
  Depends: libpython2.7-stdlib (>= 2.7.5-1~)
libpython2.7-stdlib
  Depends: libbz2-1.0
  Depends: libc6 (>= 2.15)
  Depends: libdb5.3
  Depends: libexpat1 (>= 2.1~beta3)
  Depends: libffi6 (>= 3.0.4)
  Depends: libncursesw5 (>= 5.6+20070908)
  Depends: libpython2.7-minimal (= 2.7.6-8)
  Depends: libreadline6 (>= 6.0)
  Depends: libsqlite3-0 (>= 3.5.9)
  Depends: libssl1.0.0 (>= 1.0.0)
  Depends: libtinfo5
  Depends: mime-support
libbz2-1.0
  Depends: libc6 (>= 2.4)
  PreDepends: multiarch-support
libdb5.3
  Depends: libc6 (>= 2.17)
  PreDepends: multiarch-support
libexpat1
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
libffi6
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
libncursesw5
  Depends: libc6 (>= 2.15)
  Depends: libtinfo5 (= 5.9+20140118-1ubuntu1)
  PreDepends: multiarch-support
libtinfo5
  Depends: libc6 (>= 2.15)
  PreDepends: multiarch-support
libpython2.7-minimal
libreadline6
  Depends: libc6 (>= 2.15)
  Depends: libtinfo5
  Depends: readline-common
  PreDepends: multiarch-support
readline-common
  Depends: dpkg (>= 1.15.4)
  Depends: install-info
dpkg
  PreDepends: libbz2-1.0
  PreDepends: libc6 (>= 2.14)
  PreDepends: liblzma5 (>= 5.1.1alpha+20120614)
  PreDepends: libselinux1 (>= 2.1.0)
  PreDepends: tar (>= 1.23)
  PreDepends: zlib1g (>= 1:1.1.4)
liblzma5
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
libselinux1
  Depends: libc6 (>= 2.14)
  Depends: libpcre3
  PreDepends: multiarch-support
libpcre3
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
tar
  PreDepends: libacl1 (>= 2.2.51-8)
  PreDepends: libc6 (>= 2.17)
  PreDepends: libselinux1 (>= 1.32)
libacl1
  Depends: libattr1 (>= 1:2.4.46-8)
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
libattr1
  Depends: libc6 (>= 2.4)
  PreDepends: multiarch-support
zlib1g
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
install-info
  Depends: libc6 (>= 2.14)
  PreDepends: dpkg (>= 1.16.1)
libsqlite3-0
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
libssl1.0.0
  Depends: debconf (>= 0.5)
  Depends: debconf-2.0
  Depends: libc6 (>= 2.14)
  PreDepends: multiarch-support
debconf
  PreDepends: perl-base (>= 5.6.1-4)
perl-base
  PreDepends: dpkg (>= 1.14.20)
  PreDepends: libc6 (>= 2.14)
debconf-2.0
mime-support
python-minimal
  Depends: dpkg (>= 1.13.20)
  Depends: python2.7-minimal (>= 2.7.5-1~)
python2.7-minimal
  Depends: libpython2.7-minimal (= 2.7.6-8)
  Depends: zlib1g (>= 1:1.2.0)
  PreDepends: libc6 (>= 2.15)
python2.7
  Depends: libpython2.7-stdlib (= 2.7.6-8)
  Depends: mime-support
  Depends: python2.7-minimal (= 2.7.6-8)
python:any
ucf
  Depends: coreutils (>= 5.91)
  Depends: debconf (>= 1.5.19)
coreutils
  PreDepends: libacl1 (>= 2.2.51-8)
  PreDepends: libattr1 (>= 1:2.4.46-8)
  PreDepends: libc6 (>= 2.17)
  PreDepends: libselinux1 (>= 1.32)

На моей чистой установке сервера человечности, apt-rdepends только потребовал libapt-pkg-perl для установки. Это намного легче затем ubuntu-dev-tools и все же все еще рекурсивно, таким образом, Вы добираетесь весь зависимости, скорее затем просто зависимости первого порядка, как apt-cache depends возвраты.