GDML LCG build instructions

• These instructions are for building GDML following LCG software release conventions. Some more general instructions can be found on the C++ GDML processors page.
  
  
• GDML should be checked out from simu/GDML2 repository with the appropriate tag of the form GDML_x_y_z. The LCG release procedure assumes that the destination directory is of the form GDML_X_Y_Z/src. After the check out, that directory should contain GDMLSchema and CPPGDML subdirectories as well as LCGMakefile which is used for building GDML in the CERN environment.
• The SCRAM_ARCH environment variable should be set to the platform name. For instance 'setenv SCRAM_ARCH slc4_ia32_gcc345'.
• In the CERN environment the building can be done automatically by issueing the 'make -f LCGMakefile' command. This will build GDML and copy the libraries as well as the header files to GDML_X_Y_Z/$SCRAM_ARCH/lib and GDML_X_Y_Z/include respectively.
• For a non-CERN environment, this procedure can be still followed but the CPPGDML/CERNConfigure.sh file needs to be edited and appropriately changed.