Nicholas Clark created LOGCXX-551:
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Summary: CMake documented build option for Boost vs C++17
Implementation for shared_mutex
Key: LOGCXX-551
URL: https://issues.apache.org/jira/browse/LOGCXX-551
Project: Log4cxx
Issue Type: Wish
Components: Build, Documentation
Affects Versions: 0.12.1
Reporter: Nicholas Clark
There was a recent approach to detecting if boost' implementation is needed,
but I feel that it is not succinct and cannot be when it comes to linker issues.
I have large applications that use shared_mutex, but require boost'
implementation as not all components linked are able to use C++17
implementation at this time. A problem occurs during linkage when log4cxx is
built using C++17's implementation but our other component is built using
boost' implementation.
*Workaround:*
We currently can force cmake into using Boost' implementation by passing:
{code:java}
-DSTD_SHARED_MUTEX_FOUND=0{code}
This isn't a documented 'feature'. I would like a documented approach to this.
If -DSTD_SHARED_MUTEX_FOUND=0 is what we should use for this feature request,
then it should be documented as such. I am putting forth this issue as current
usage is not documented as supported and thus I suspect it may be lost in
future commits.
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