Shared library libboost_graph_parallel calls exit() or _exit()

[robert@…]

During a package review at Fedora (​https://bugzilla.redhat.com/show_bug.cgi?id=673839) our rpmlint warned, that the shared library libboost_graph_parallel calls exit() or _exit():

boost-graph-mpich2.i686: W: shared-lib-calls-exit /usr/lib/mpich2/lib/libboost_graph_parallel.so.1.46.0 exit@GLIBC_2.0
This library package calls exit() or _exit(), probably in a non-fork()
context. Doing so from a library is strongly discouraged - when a library
function calls exit(), it prevents the calling program from handling the
error, reporting it to the user, closing files properly, and cleaning up any
state that the program has. It is preferred for the library to return an
actual error code and let the calling program decide how to handle the
situation.

boost-graph-mpich2.i686: W: shared-lib-calls-exit /usr/lib/mpich2/lib/libboost_graph_parallel-mt.so.1.46.0 exit@GLIBC_2.0
This library package calls exit() or _exit(), probably in a non-fork()
context. Doing so from a library is strongly discouraged - when a library
function calls exit(), it prevents the calling program from handling the
error, reporting it to the user, closing files properly, and cleaning up any
state that the program has. It is preferred for the library to return an
actual error code and let the calling program decide how to handle the
situation.

May somebody more knowledged than me please investigate here, whether this exit()/_exit() is acceptable or whether it should be changed/rewritten (and if yes, do so)? Thank you very much.

[Jeremiah Willcock]

(In [73425]) Removed calls to exit(); fixes #5185