From: Manuel Nickschas <sputnick@quassel-irc.org>
Date: Tue, 31 Jul 2018 19:16:32 +0000 (+0200)
Subject: cmake: Use official FindBacktrace rather than custom FindExecInfo
X-Git-Tag: test-travis-01~177
X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=commitdiff_plain;h=222d0be6ffa0f6c63c3c8c5a303260b9aee10e68;hp=222d0be6ffa0f6c63c3c8c5a303260b9aee10e68

cmake: Use official FindBacktrace rather than custom FindExecInfo

Newer versions of CMake ship their own FindBacktrace.cmake module,
which replaces the FindExecInfo.cmake module so far shipped by
Quassel. The official module is also a bit more thorough in terms
of cross-platform support.

To avoid duplication, remove Quassel's custom find module and use
the official one instead.
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