Wes McKinney created ARROW-1113:
-----------------------------------
Summary: [C++] gflags EP build gets triggered (as a no-op) on
subsequent calls to make or ninja build
Key: ARROW-1113
URL: https://issues.apache.org/jira/browse/ARROW-1113
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 0.4.1
Reporter: Wes McKinney
Since switching to Ninja for builds I've noticed this rough edge. It doesn't
seem to affect other EPs. [~xhochy] have you also seen this?
{code}
$ ninja
[4/45] Performing configure step for 'gflags_ep'
-- Configuring done
-- Generating done
-- Build files have been written to:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep
[5/45] Performing build step for 'gflags_ep'
ninja: no work to do.
[6/45] Performing install step for 'gflags_ep'
[0/1] Install the project...
-- Install configuration: "DEBUG"
-- Up-to-date:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep/lib/cmake/gflags/gflags-config.cmake
-- Up-to-date:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep/lib/cmake/gflags/gflags-config-version.cmake
-- Up-to-date:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep/lib/cmake/gflags/gflags-targets.cmake
-- Installing:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep/lib/cmake/gflags/gflags-targets-debug.cmake
-- Up-to-date:
/home/wesm/code/arrow/cpp/test-build/gflags_ep-prefix/src/gflags_ep/bin/gflags_completions.sh
[8/45] Building CXX object
CMakeFiles/arrow_objlib.dir/src/arrow/ipc/json-internal.cc.o
<SNIP>
{code}
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