These are the changes needed to support explicitlink option for Linux and Mac.


git-svn-id: http://root.cern.ch/svn/root/trunk@41479 27541ba8-7e3a-0410-8455-c3a389f83636

Introduce alternative cmake based build system. Cmake is especially convenient
for building on Windows, as it can produce VC projects or nmake files and 
does not require cygwin to be installed. In addition on OSX Xcode projects
can be generated.


git-svn-id: http://root.cern.ch/svn/root/trunk@39463 27541ba8-7e3a-0410-8455-c3a389f83636

To make an out of source build do, assuming the source is in ~/root:
   mkdir ~/root-x8664
   cd ~/root-x8664
   ~/root/configure
   make
This is convenient to build e.g. 32 and 64-bit version from one source, but
also needed for cross-compilation, where it is now possible to build in
a special directory only the compile time tools, like rootcint for the
host architecture while the binary is build for the remote architecture
(like iOS).


git-svn-id: http://root.cern.ch/svn/root/trunk@36659 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@35964 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@35950 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@35365 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@32310 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@30774 27541ba8-7e3a-0410-8455-c3a389f83636

git-svn-id: http://root.cern.ch/svn/root/trunk@23483 27541ba8-7e3a-0410-8455-c3a389f83636

asimage, freetype, gpad, graf, postscript, qt, win32gdk, x11, x11ttf

move the following directories to "graf3d":

eve, ftgl, g3d, gl, x3d


git-svn-id: http://root.cern.ch/svn/root/trunk@23140 27541ba8-7e3a-0410-8455-c3a389f83636