To compile your new SMART action into SMART, just update the makefile under smart.11.0/src/liblocal/libindexing so our new file is linked into the library, by adding remove_s_french.o to the STEM= line.
'cd' into the smart.11.0/src directory, and type 'make'. If all goes well, you should have a new version of SMART into the directory smart.11.0/src/bin . Check the modification date, as the makefiles for SMART are not always successful in detecting the compile errors. The size of the SMART executable, 'smart', should have grown a bit since you just added a function; you can compare with the file 'smart.old', which is created just before installing the newest version.