config_definition_ctsm.xml

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="config_definition.xsl" ?>

<config_definition>

<entry id="phys" 
       valid_values="clm4_5,clm5_0,clm5_1,clm6_0"
       value="clm4_5"
       category="physics">
Specifies either clm4_5, clm5_0, clm5_1 (deprecated), or clm6_0 physics
</entry>

<entry id="clm_root" 
       value="" 
       category="directories">
Root directory of CLM source distribution (directory above CLM configure).
</entry>

<entry id="comp_intf" 
       valid_values="ESMF,cpl_\$COMP"
       value="ESMF"
       category="directories">
Component framework interface to use 
(Earth System Modeling Framework)
</entry>

<entry id="usr_src" 
       value="" 
       list="1" 
       category="directories">
User source directories to prepend to the filepath.  Multiple directories
are specified as a comma separated list with no embedded white space.
Normally this is SourceMods/src.clm in your case.
</entry>

<entry id="cppdefs" 
       value="" 
       category="physics">
User specified CPP defines to append to Makefile defaults.
Note: It's recommended to use configure options to set standard CPP values rather
than defining them here.
</entry>

</config_definition>