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From Andrew Schwartzmeyer <>
Subject Review Request 66711: Made 3rdparty jemalloc only build when enabled.
Date Thu, 19 Apr 2018 02:12:57 GMT

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Review request for mesos, Alexander Rukletsov, Benjamin Bannier, Benno Evers, and Joseph Wu.

Repository: mesos


The `ExternalProjectAdd` CMake module defines
download/update/patch/configure steps unconditionally as default
targets. This meant that `cmake --build .` on Windows attempted to run
the `configure` script of jemalloc, which obviously fails.

By wrapping the 3rdparty import with `ENABLE_JEMALLOC_ALLOCATOR` we
fix this bug on Windows, and avoid unnecessary build steps on Linux.


  3rdparty/CMakeLists.txt 70affa3550d91b48b97417d857a0eeacd60f9b2c 



`ninja` on Windows (no target arguments); now the `jemalloc` configuration step is entirely
skipped. Previously it resulted in:

FAILED: 3rdparty/jemalloc-5.0.1/src/jemalloc-5.0.1-stamp/jemalloc-5.0.1-configure
cmd.exe /C "cd /D C:\Users\andschwa\src\mesos\build\master\3rdparty\jemalloc-5.0.1\src\jemalloc-5.0.1-build
&& C:\Users\andschwa\src\mesos\build\master\3rdparty\jemalloc-5.0.1\src\jemalloc-5.0.1\configure
--enable-stats --enable-prof --with-malloc-conf=prof:true,prof_active:false && "C:\Program
Files\CMake\bin\cmake.exe" -E touch C:/Users/andschwa/src/mesos/build/master/3rdparty/jemalloc-5.0.1/src/jemalloc-5.0.1-stamp/jemalloc-5.0.1-configure"

Please correct me if I'm wrong about this.


Andrew Schwartzmeyer

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