Running `make clean` deletes `*_cpp03` files from MWC

[pniedzielski]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Running make clean from a build directory removes the following checked-in files from the source , resulting in unstaged changes in the git repo:

Unstaged changes (12)
deleted    src/groups/mwc/mwcex/mwcex_bindutil_cpp03.cpp
deleted    src/groups/mwc/mwcex/mwcex_bindutil_cpp03.h
deleted    src/groups/mwc/mwcex/mwcex_future_cpp03.cpp
deleted    src/groups/mwc/mwcex/mwcex_future_cpp03.h
deleted    src/groups/mwc/mwcex/mwcex_promise_cpp03.cpp
deleted    src/groups/mwc/mwcex/mwcex_promise_cpp03.h
deleted    src/groups/mwc/mwcu/mwcu_noop_cpp03.cpp
deleted    src/groups/mwc/mwcu/mwcu_noop_cpp03.h
deleted    src/groups/mwc/mwcu/mwcu_objectplaceholder_cpp03.cpp
deleted    src/groups/mwc/mwcu/mwcu_objectplaceholder_cpp03.h
deleted    src/groups/mwc/mwcu/mwcu_operationchain_cpp03.cpp
deleted    src/groups/mwc/mwcu/mwcu_operationchain_cpp03.h

Expected Behavior

Running make clean from a build directory should not modify the source directory.

Steps To Reproduce

1. Clone the repo at main.
2. ./bin/build-darwin.sh from an up-to-date Mac.
3. (cd build/blazingmq && make clean) && ./bin/build-darwin.sh

BlazingMQ Version

HEAD

Anything else?

I will see if I can reproduce this on a Linux box this evening.

Deleting the blazingmq build directory obviates this problem (cd build && rm -r blazingmq in place of the steps to reproduce). The _cpp03.h files are generated as part of our build to provide C++03 compatible copies of C++11 or later constructs in MWC. Despite being generated, they should probably live in source control. My intuition is that CMake will be our savior here.

[melvinhe]

@pniedzielski Tried reproducing this on an M3 Max Mac this evening. When running ./bin/build-darwin.sh, I get the following error:

...
CMake Error at thirdparty/bde-tools/BdeBuildSystem/BdeImportPkgConfigTargets.cmake:230 (message):
  Cannot find benchmark.pc file in these paths:
  /Users/melvinhe/Desktop/Bloomberg/blazingmq/lib/pkgconfig
  /opt/homebrew/lib/pkgconfig /opt/homebrew/opt/zlib/lib/pkgconfig
  /opt/homebrew/opt/googletest/lib/pkgconfig
  /Users/melvinhe/Desktop/Bloomberg/blazingmq/lib/pkgconfig
  /opt/homebrew/lib/pkgconfig /opt/homebrew/opt/zlib/lib/pkgconfig
  /opt/homebrew/opt/googletest/lib/pkgconfig

  [CALL_CHAIN=benchmark]
Call Stack (most recent call first):
  thirdparty/bde-tools/BdeBuildSystem/BdeImportPkgConfigTargets.cmake:184 (_bbs_pcimport_get_pcfile)
  thirdparty/bde-tools/BdeBuildSystem/BdeImportPkgConfigTargets.cmake:127 (_bbs_pcimport_import_pkgconfig_target)
  thirdparty/bde-tools/BdeBuildSystem/BdeImportPkgConfigTargets.cmake:108 (_bbs_pcimport_add_package)
  thirdparty/bde-tools/BdeBuildSystem/BdeImportPkgConfigTargets.cmake:86 (_bbs_import_pkgconfig_targets)
  thirdparty/bde-tools/BdeBuildSystem/BdeTargetUtils.cmake:85 (bbs_import_pkgconfig_targets)
  thirdparty/bde-tools/BdeBuildSystem/BdeTargetUtils.cmake:130:EVAL:2 (_bbs_defer_target_import)
  CMakeLists.txt:DEFERRED

-- Configuring incomplete, errors occurred!

Anything I may be missing when trying to replicate this?

[pniedzielski]

@melvinhe Thanks for checking this out for us. Could you let me know what the output of

1. pkg-config --libs benchmark,
2. uname -p, and
3. pkg-config --variable pc_path pkg-config

for me? The output you showed indicates that libbenchmark isn't installed/accessible on your system, and so it could be an issue with brew, libbenchmark, or pkg-config.

[melvinhe]

@pniedzielski Thanks, I get the following:

melvinhe@macbook-pro-375 blazingmq % pkg-config --libs benchmark
-L/usr/local/Cellar/google-benchmark/1.8.3/lib -lbenchmark
melvinhe@macbook-pro-375 blazingmq % uname -p
arm
melvinhe@macbook-pro-375 blazingmq % pkg-config --variable pc_path pkg-config
/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/pkgconfig:/usr/local/Homebrew/Library/Homebrew/os/mac/pkgconfig/12