[Doxygen-users] Doxygen 1.8.6 unusable to build our doc due to tag_files generated

[Sebastien L. <slo...@gm...>]

Hello,

Our library documentation is decomposed into packages and each package
documentation has its own doxygen compilation unit. The links between
the packages are handled thanks to the tag-files.
The build is OK when using doxygen 1.8.4.

When we tried to switch to 1.8.6 we noticed that the second build
(the first build generates the tag-files) allocates huge amounts of
memory making the computer swapping and unusable.
If I use doxygen 1.8.4 for the second build (i.e. using tag-files from 
doxygen 1.8.6), the behavior is the same.

I tried to make a small reproducible test case without success.
One of our developer suspects this commit 31198c21.

Is it a known issue?
If this can help, I can find out what in the diff of the tag-files
cause the issue. What I quickly notice in the diff are:
-change in anchor hash
-extra <type>@</type> in enums
-more members and class are exported

Thanks,

Sebastien.