C++ client support for arm64 (like Raspberry Pi)

Is your feature request related to a problem? Please describe. I was trying to build it for Raspberry Pi so that client libraries can be built/ran on Pi. It failed. Error messages are attached below. Looks like we have very specific dependency on some CPU flags like msse4.2 -mpclmul

Describe the solution you’d like Can we have a client library for Raspberry Pi

Describe alternatives you’ve considered None

Additional context I was compiling it inside a docker. Error message as follows

root@pulsar-client-cpp-lib:/code/pulsar/pulsar-client-cpp# make  -j4
[  0%] Building CXX object lib/CMakeFiles/pulsarShared.dir/Authentication.cc.o
[  0%] Building CXX object lib/CMakeFiles/pulsarShared.dir/BatchAcknowledgementTracker.cc.o
c++: error: unrecognized command line option '-msse4.2'
[  1%] Building CXX object lib/CMakeFiles/pulsarShared.dir/Backoff.cc.o
c++: error: unrecognized command line option '-mpclmul'
c++: error: unrecognized command line option '-msse4.2'
lib/CMakeFiles/pulsarShared.dir/build.make:69: recipe for target 'lib/CMakeFiles/pulsarShared.dir/Authentication.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarShared.dir/Authentication.cc.o] Error 1
make[2]: *** Waiting for unfinished jobs....
c++: error: unrecognized command line option '-mpclmul'
lib/CMakeFiles/pulsarShared.dir/build.make:117: recipe for target 'lib/CMakeFiles/pulsarShared.dir/BatchAcknowledgementTracker.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarShared.dir/BatchAcknowledgementTracker.cc.o] Error 1
c++: error: unrecognized command line option '-msse4.2'
c++: error: unrecognized command line option '-mpclmul'
[  2%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/Authentication.cc.o
lib/CMakeFiles/pulsarShared.dir/build.make:93: recipe for target 'lib/CMakeFiles/pulsarShared.dir/Backoff.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarShared.dir/Backoff.cc.o] Error 1
CMakeFiles/Makefile2:151: recipe for target 'lib/CMakeFiles/pulsarShared.dir/all' failed
make[1]: *** [lib/CMakeFiles/pulsarShared.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
c++: error: unrecognized command line option '-msse4.2'
c++: error: unrecognized command line option '-mpclmul'
lib/CMakeFiles/pulsarStatic.dir/build.make:69: recipe for target 'lib/CMakeFiles/pulsarStatic.dir/Authentication.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarStatic.dir/Authentication.cc.o] Error 1
make[2]: *** Waiting for unfinished jobs....
[  3%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/BatchAcknowledgementTracker.cc.o
[  3%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/Backoff.cc.o
[  3%] Building CXX object lib/CMakeFiles/pulsarStatic.dir/BatchMessageContainer.cc.o
c++: error: unrecognized command line option '-msse4.2'
c++: error: unrecognized command line option '-mpclmul'
lib/CMakeFiles/pulsarStatic.dir/build.make:117: recipe for target 'lib/CMakeFiles/pulsarStatic.dir/BatchAcknowledgementTracker.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarStatic.dir/BatchAcknowledgementTracker.cc.o] Error 1
c++: error: unrecognized command line option '-msse4.2'
c++: error: unrecognized command line option '-mpclmul'
lib/CMakeFiles/pulsarStatic.dir/build.make:93: recipe for target 'lib/CMakeFiles/pulsarStatic.dir/Backoff.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarStatic.dir/Backoff.cc.o] Error 1
c++: error: unrecognized command line option '-msse4.2'
c++: error: unrecognized command line option '-mpclmul'
lib/CMakeFiles/pulsarStatic.dir/build.make:141: recipe for target 'lib/CMakeFiles/pulsarStatic.dir/BatchMessageContainer.cc.o' failed
make[2]: *** [lib/CMakeFiles/pulsarStatic.dir/BatchMessageContainer.cc.o] Error 1
CMakeFiles/Makefile2:188: recipe for target 'lib/CMakeFiles/pulsarStatic.dir/all' failed
make[1]: *** [lib/CMakeFiles/pulsarStatic.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2
root@pulsar-client-cpp-lib:/code/pulsar/pulsar-client-cpp# 

[sekarpdkt]

I am able to successfully compile it with following changes.

1. Removed crc32c_sse42.cc and crc32c_sse42.h from lib/checksum directory
2. Modified ChecksumProvider.cc and crc32c_sw.cc to remove references to above two files. Modified files are attached.
3. Disabled BUILD_TEST thru cmake . -DBUILD_TESTS=OFF

Not sure how to configure a switch for the same.

ChecksumProvider.cc.txt crc32c_sw.cc.txt

[tspannhw]

I have made it work. I disabled tests and examples for the build. see my info and compiled executable. This is on a RPI4. https://github.com/tspannhw/PulsarOnRaspberryPi