Make sure the mod time of installed root.exe versus bin/root.exe matches what nwe expect from having run make install.


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Clarify that for prefix builds one needs to first run make install and then make html.


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make's error message can be several pages up for make -j24.
I would prefer to only print a message on failure,
but recursively invoking make (the only option I see) is a too much overhead for that.

Make Makefile depend on srcdir/Makefile for out-of-source builds.


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libCore does not depend on cling .d files but on the cling library itself (i.e. used wrong Makefile var name).


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Put cling MODULE right after cint; core/utils needs it - e.g. the value of CLINGLIB. CLINGDEP should be .d files, not libCling; use CLINGLIB instead.


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but not on any other platform... thanks to human buildbot).


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(like gRandom) we load libMathCore explicitly. Smart linkers (Ubuntu 11, AIX)
strip unused libs and force linking by undefining a symbol on the command line
is ugly.


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removing built-in xrootd, from now on use external xrootd.


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activate graf2d/ios.


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This replaces CINT *only for interpreting code*; CINT is still used for reflection and reflection-based calls.
To enable, pass
./configure --with-llvm-config=/location/of/llvm/int/bin --enable-cling
to configure.

libCling is now built from within ROOT, using the same flags as e.g. used to build clang.
Now that TCintWithCling is not called TCint anymore, the separate dictionary for TCint can be removed; it's back in G__Meta.
The only configure element needed to find and use LLVM is the llvm-config script which is found from --with-llvm-config.
makelib does not link -lCore -lCint to -lCling.


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- search for libpng on OSX in /usr/X11
- link builtin libpng with -lz
- link builtin freetype with -lz
- allow ALICE special way of linking with private libPythia6


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Instead make sure that FORCELINK is really set on MacOS when using the new linking technics.
(This makes sure libMathCore is linked into root.exe even though there is no real dependency)


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Link libCore against libMathCore in addition to libCint and add an explicit symbol request to insure that it really linked in only (for now) on MacOS and when explicit linking is explicitly requested


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able to read any ROOT file. If liblzma is discovered on the system it will
be used in stead of the builtin one.


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Implement an option to allow ROOT to use the LZMA compression
algorithm to compress data instead of the ZLIB compression algorithm.
LZMA compression typically results in smaller files, but takes more
CPU time to compress data. To use the new feature, the external XZ
package must be installed when ROOT is configured and built:

Download 5.0.3 from here http://tukaani.org/xz/
and make sure to configure with fPIC:
   ./configure CFLAGS='-fPIC'

Then the client C++ code must call routines to explicitly request LZMA
compression.

ZLIB compression is still the default.

Setting the Compression Level and Algorithm:

There are three equivalent ways to set the compression level and 
algorithm. For example, to set the compression to the LZMA algorithm
and compression level 5.

1. TFile f(filename, option, title);
   f.SetCompressionSettings(ROOT::CompressionSettings(ROOT::kLZMA, 5));

OR

2. TFile f(filename, option, title, ROOT::CompressionSettings(ROOT::kLZMA, 5));

OR

3. TFile f(filename, option, title);
   f.SetCompressionAlgorithm(ROOT::kLZMA);
   f.SetCompressionLevel(5);

These methods work for TFile, TBranch, TMessage, TSocket, and TBufferXML. 
The compression algorithm and level settings only affect compression of
data after they have been set. TFile passes its settings to its branches 
only at the time the branches are created. This can be overidden by 
explicitly setting the level and algorithm for the branch. These classes 
also have the following methods to access the algorithm and level for 
compression.

   Int_t GetCompressionAlgorithm() const;
   Int_t GetCompressionLevel() const;
   Int_t GetCompressionSettings() const;

If the compression level is set to 0, then no compression will be
done. All of the currently supported algorithms allow the level to be
set to any value from 1 to 9. The higher the level, the larger the
compression factors will be (smaller compressed data size). The
tradeoff is that for higher levels more CPU time is used for
compression and possibly more memory. The ZLIB algorithm takes less
CPU time during compression than the LZMA algorithm, but the LZMA
algorithm usually delivers higher compression factors.

The header file core/zip/inc/Compression.h declares the function
"CompressionSettings" and the enumeration for the algorithms.
Currently the following selections can be made for the algorithm:
kZLIB (1), kLZMA (2), kOldCompressionAlgo (3), and kUseGlobalSetting
(0). The last option refers to an older interface used to control the
algorithm that is maintained for backward compatibility. The following
function is defined in core/zip/inc/Bits.h and it set the global
variable.

   R__SetZipMode(int algorithm)

If the algorithm is set to kUseGlobalSetting (0), the global variable
controls the algorithm for compression operations.  This is the
default and the default value for the global variable is kZLIB.

Note that the LZMA algorithm will only be available if the LZMA
libraries from the XZ package were available when the ROOT executable
being used was configured and built. If you are building ROOT and want
LZMA then you must do something similar to the following if XZ is not
already installed on your system.

  Download XZ version 5.0.3 from http://tukaani.org/xz/
  unwind the tarball
  cd xz-5.0.3
  ./configure CFLAGS='-fPIC'
  make

ROOT was tested with version 5.0.3 of XZ.  It might work with earlier
versions and will probably work with later versions of XZ.

Then either use "make install" to put the library and headers into
/usr/local/* so the scripts building ROOT can find them or use
arguments to the ROOT configure script to point to the proper
directories containing the XZ library and headers. These are the
library and the included header (lzma.h includes other headers in the
lzma subdirectory).

  src/liblzma/.libs/liblzma.a
  src/liblzma/api/lzma.h

WARNING: Data compressed with the LZMA algorithm cannot be read by
ROOT executables that were not built with LZMA support.


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* remove editline directory if it still exists (e.g. out of source).
* put textinput module in line with the other default ones.


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located at core/textinput/src/textinput. That new library is written
in C++, standalone (no external dependencies), cross platform
including Windows, and contains only what we need - unlike
e.g. editline. It implements almost all bash-like editing commands,
color highlighting, history etc. It allows for multiple input objects
and multiple display objects, e.g. GUI and terminal in parallel. It
can be used as a stand-alone library, too, and will become part of
cling - which explains the different license and file names (.cpp).

core/textinputs/src/Getline* contains the adapters to ROOT; the
previous core/editline/enhance.cxx is transformed to
Getline_color.cxx. This new adapter interfaces with TTabCom directly,
without going via an extern "C" function pointer, to allow for an
ostream being passed that will contain all completion options, one per
line. TApplication now defines a virtual function to be called for tab
completion; TRint implements it using TTabCom.

One major change is that the user input string is accessible as const
char* instead of being a char* - the buffer length is unknown
anyway. This caused changes in callers of Getline(); the history and
the getline function types needed to change for CINT.

--enable-editline has been deprecated and is inoperable.


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build the AliEn plugin only when XRD is build or available.


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Second part of a patch to import the dataset stager daemon 'afdsmgrd' into
ROOT. See also $ROOTSYS/proof/afdsmgrd/README.


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