This page shows how the binary ROOT distributions were build for the different platforms.
You can use root-config --config to see all options passed to ./configure. In addition you can use root-config --features to see all supported features of the specific ROOT install. The feature list is a combination of the explicit features specified via ./configure or cmake arguments, the features specified via environment variables and those found via auto-detection.
Linux SLC5 ia32 gcc4.3
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dkrb5=ON -DPYTHON_EXECUTABLE=/afs/cern.ch/sw/lcg/external/Python/2.7.3/i686-slc5-gcc43-opt/bin/python
Linux SLC5 amd64 gcc4.3
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dkrb5=ON -DPYTHON_EXECUTABLE=/afs/cern.ch/sw/lcg/external/Python/2.7.3/x86_64-slc5-gcc43-opt/bin/python
Linux SLC6 amd64 gcc4.4
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dkrb5=ON -DPYTHON_EXECUTABLE=/afs/cern.ch/sw/lcg/external/Python/2.7.3/x86_64-slc6-gcc43-opt/bin/python
Linux SLC6 amd64 gcc4.7
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dkrb5=ON -DPYTHON_EXECUTABLE=/afs/cern.ch/sw/lcg/external/Python/2.7.3/x86_64-slc6-gcc47-opt/bin/python
Linux SLC6 amd64 gcc4.8
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dkrb5=ON -DPYTHON_EXECUTABLE=/afs/cern.ch/sw/lcg/external/Python/2.7.3/x86_64-slc6-gcc48-opt/bin/python
Mac OS X 10.9 clang 5.1
-Dall=ON -Dbuiltin_cfitsio=ON -Dbuiltin_davix=ON -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_gsl=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_xrootd=ON -Dcxx11=ON -Dlibcxx=ON
Win32 MSVC++9.0
win32 --enable-builtin-freetype --enable-castor --enable-cintex --enable-gdml --enable-genvector --enable-mathmore --enable-minuit2 --enable-mysql --enable-odbc --enable-oracle --enable-python --enable-qtgsi --enable-reflex --enable-rfio --enable-roofit --enable-table --enable-tmva --enable-unuran --disable-xrootd --with-castor-libdir=c:/home/bellenot/libs/Castor/lib --with-castor-incdir=c:/home/bellenot/libs/Castor/include/shift --with-cern-libdir=c:/home/bellenot/libs/cernlib/2004/lib --with-fftw3-incdir=l:/external/fftw3/3.1.2/i686-winxp-vc9-opt/include --with-fftw3-libdir=l:/external/fftw3/3.1.2/i686-winxp-vc9-opt/lib --with-gccxml=l:/external/gccxml/0.9.0_20100114/i686-winxp-vc9-opt/bin --with-gsl-incdir=l:/external/GSL/1.10/i686-winxp-vc9-opt/include --with-gsl-libdir=l:/external/GSL/1.10/i686-winxp-vc9-opt/lib --with-mysql-incdir=l:/external/mysql/5.5.14/i686-winxp-vc9-opt/include --with-mysql-libdir=l:/external/mysql/5.5.14/i686-winxp-vc9-opt/lib --with-oracle-incdir=l:/external/oracle/10.2.0.4/i686-winxp-vc9-opt/include --with-oracle-libdir=l:/external/oracle/10.2.0.4/i686-winxp-vc9-opt/lib --with-pythia6-libdir=c:/home/bellenot/libs/pythia6 --with-pythia8-libdir=c:/home/bellenot/libs/pythia8/lib/release --with-pythia8-incdir=c:/home/bellenot/libs/pythia8/include --with-python-incdir=l:/external/Python/2.6.5/i686-winxp-vc9-opt/include --with-python-libdir=l:/external/Python/2.6.5/i686-winxp-vc9-opt/libs --with-rfio-libdir=c:/home/bellenot/libs/Castor/lib --with-rfio-incdir=c:/home/bellenot/libs/Castor/include/shift --with-xml-incdir=c:/home/bellenot/libs/libxml2-2.6.23/include --with-xml-libdir=c:/home/bellenot/libs/libxml2-2.6.23/lib --with-gviz-incdir=c:/Temp/graphviz-2.25/release/include/graphviz --with-gviz-libdir=c:/Temp/graphviz-2.25/release/lib
Win32 MSVC++10.0
-Dall=ON -Dvc=OFF -Dqt=OFF -Dqtgsi=OFF -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_zlib=ON -Dmathmore=ON -DGSL_INCLUDE_DIR=c:/libs/GSL/1.16/include -DGSL_LIBRARY=c:/libs/GSL/1.16/lib/Release/gsl.lib -DGSL_CBLAS_LIBRARY=c:/libs/GSL/1.16/lib/Release/gslcblas.lib -Dpythia6=ON -DPYTHIA6_LIBRARY=c:/libs/pythia6/libPythia6.lib -Dpythia8=ON -DPYTHIA8_INCLUDE_DIR=c:/libs/pythia8/include -DPYTHIA8_LIBRARY=c:/libs/pythia8/lib/Release/libPythia8.lib -DPYTHON_EXECUTABLE=c:/Python27/python.exe -DPYTHON_INCLUDE_DIR=c:/Python27/Include -DPYTHON_LIBRARY=c:/Python27/libs/python27.lib
Win32 MSVC++11.0
-Dall=ON -Dvc=OFF -Dqt=OFF -Dqtgsi=OFF -Dbuiltin_freetype=ON -Dbuiltin_ftgl=ON -Dbuiltin_glew=ON -Dbuiltin_lzma=ON -Dbuiltin_pcre=ON -Dbuiltin_zlib=ON -Dmathmore=ON -DGSL_INCLUDE_DIR=c:/libs/GSL/1.16/include -DGSL_LIBRARY=c:/libs/GSL/1.16/lib/Release/gsl.lib -DGSL_CBLAS_LIBRARY=c:/libs/GSL/1.16/lib/Release/gslcblas.lib -Dpythia6=ON -DPYTHIA6_LIBRARY=c:/libs/pythia6/libPythia6.lib -Dpythia8=ON -DPYTHIA8_INCLUDE_DIR=c:/libs/pythia8/include -DPYTHIA8_LIBRARY=c:/libs/pythia8/lib/Release/libPythia8.lib -DPYTHON_EXECUTABLE=c:/Python27/python.exe -DPYTHON_INCLUDE_DIR=c:/Python27/Include -DPYTHON_LIBRARY=c:/Python27/libs/python27.lib