(according to Geant4 tls.hh and G4Threading.hh)

this is necessary since in R5 the typedef pragma selected class
is present to allow cint to know about these typedefs.
This is not necessary for Root6.
On the other hand, we need autoload entries for these typedefs.
The solution is to keep them in the list of selected typedefs but
not to "drill a hole" through them and select the class they point
to.
This behaviour is present only for genreflex + selection xml, for
which the typedefs are "followed up": the pointed class is selected
via the typedef. Again, a behaviour of ROOT5 preserved in ROOT6.

formalise the type of scan defining three types thereof:
 - Normal
 - Two passes (for dict selection)
 - One PCM

this allows to associate to a typedef, which is an autoload entry,
headers. This is crucial in presence of header parsing on demand.

yes: it was not implemented.
The only effect it had, and nobody noticed, is that autoloading
would not have worked for those typedefs.
The effect is very pronounced, i.e. crash, in presence of header
parsing on demand.

When a file is unloaded its entry should be removed from MetaSema::m_WaterMarks.
At the moment the corresponding callback is not implemented.

Instead, we also record the relation <Transaction*,Entry*>, so that upon
MetaSema requesting an unload, we can clean-out the corresponding data
from m_WaterMarks.

In addition, to catch the case where the target transaction (unloadPoint)
is not longer present we issue an error and do not unload anything.

Generalize the __cxa_atexit replacement to cover more symbols.
Because the JIT cannot handle inline asm, provide compiled symbols for relevant
functions until cling has switched to MCJIT.
This fixes the use of many boost libraries (e.g. regex) in cling on x86_64/i386.
Kudos to Marco Clemencic for the idea!

(cherry picked from v5-34-00-patches commit 0c5e70a2)

(cherry picked from v5-34-00-patches commit 746a973a)

TDavixFile changes : - fix ROOTTest executions problem : remove failed word from warning message - gridMode considers now CAPath correctly - correct problem related to X509_CERT_DIR and gridmode

Signed-off-by: Fons Rademakers <Fons.Rademakers@cern.ch>

Since std::to_string is now used in several other places, no need to comment it out anymore (it is still missing with gcc 4.8-2 on cygwin)

(cherry picked from commit f3a25819)

TAlienFile::Open passes now to the server the content of ALIEN_SITE variable if this is defined (Costin Grigoras)
(cherry picked from commit 9f0ae59c)

Apply patch kindly sent by Matthew Strait

Embed the Pad Editor in the left tab of the browser instead of in the canvas itself, as suggested by Axel in the Jira issue #ROOT-6191