D18551: clang: Create preamble only on second parse

[Milian Wolff]

mwolff added a comment.


  In D18551#430847 <https://phabricator.kde.org/D18551#430847>, @rjvbb wrote:
  
  > Re: reparsing reliably each time a headerfile is changed: wouldn't the use of forwarding headers increase the chance of missing a change?
  
  
  What's a forwarding header? Do you mean something like `#include <Foo>` which then contains a `#include <foo.h>`? We obviously should use the full include chain which will cover all files, not only direct includes.

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D18551

To: aaronpuchert, #kdevelop, mwolff, brauch, rjvbb
Cc: rjvbb, kdevelop-devel, glebaccon, domson, antismap, iodelay, alexeymin, geetamc, Pilzschaf, akshaydeo, surgenight, arrowd
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