Build wangle encountered error: error: use of undeclared identifier 'malloc_usable_size'

[ustczxf]

When I tried to build wangle, it reported:
In file included from /project/opensource/source/wangle/wangle/../wangle/concurrent/ThreadPoolExecutor.h:19:
In file included from /project/opensource/source/wangle/wangle/../wangle/deprecated/rx/Observable.h:20:
/usr/local/include/folly/small_vector.h:619:14: error: use of undeclared identifier 'malloc_usable_size'
return malloc_usable_size(u.pdata_.heap_) / sizeof(value_type);

I've built "folly" successfully, did anyone encounter the same issue?
Thanks!

[mohnishkodnani]

Yes I am getting the same issue.
I was also able to compile folly without any issues.
I am using MAC OS X 10.11.6 and gcc 6.
This is happening after pulling the latest master branch after about few months on both folly and wangle.

/git/wangle/wangle/concurrent/ThreadPoolExecutor.cpp:68:58: required from here
/usr/local/include/folly/small_vector.h:619:32: error: 'malloc_usable_size' was not declared in this scope
return malloc_usable_size(u.pdata_.heap_) / sizeof(value_type);
~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
make[2]: *** [CMakeFiles/wangle.dir/concurrent/ThreadPoolExecutor.cpp.o] Error 1
make[1]: *** [CMakeFiles/wangle.dir/all] Error 2
make: *** [all] Error 2

[mohnishkodnani]

It turns out it has something to do with jemalloc.
when I checked the configure output of compiling folly it had checked and said malloc_usable_size yes but for malloc.h check it had said false.
Then when I uninstalled jemalloc from my system , recompiled folly, it said malloc_usable_size as false and after this I could build wangle fine.

[ustczxf]

Thanks @mohnishkodnani , after I removed jemalloc, it works now.

[Allen5]

It still not work after i removed jemalloc from my system(OSX 10.12).

[YiqiuLiu]

I am having problem with this too. Installed folly with homebrew, got back luck with small_vector.h.

[anyflow]

I got the same problem. No difference with removing jemalloc, installing folly by homebrew / compiling source in macOS 10.12.1.

[howardzhang]

I am getting the same issue.
My machine is OS X 10.12.
Any update?

[anirudhvr]

folly/portability/Malloc.cpp provides a defintion for malloc_usable_size for apple platforms. Can you check why that code is not being executed on your platform (e.g., put a #error "check") inside the APPLE guard.

[howardzhang]

@anirudhvr I was able to resolve this issue using @mohnishkodnani method.

• Compile and install folly from source(mater branch) without jemalloc. (Note: Never use brew to install folly)
• If you encounter any openssl issue, try apply patch fix bootstrap on osx folly#513
• Then you may be able to compile wangle successfully.