diff --git a/sched/Makefile.am b/sched/Makefile.am
index c023eb226f..2fe3393981 100644
--- a/sched/Makefile.am
+++ b/sched/Makefile.am
@@ -117,6 +117,7 @@ schedshare_PROGRAMS = \
     sample_substr_validator \
     sample_trivial_validator \
     sample_work_generator \
+	script_validator \
     single_job_assimilator \
     size_regulator \
     transitioner \
@@ -249,6 +250,10 @@ single_job_assimilator_LDADD = $(SERVERLIBS)
 sample_work_generator_SOURCES = sample_work_generator.cpp
 sample_work_generator_LDADD = $(SERVERLIBS)
 
+script_validator_SOURCES = $(VALIDATOR_SOURCES) \
+	script_validator.cpp
+script_validator_LDADD = $(SERVERLIBS)
+
 db_dump_SOURCES = db_dump.cpp
 db_dump_LDADD = $(SERVERLIBS)
 
diff --git a/sched/script_validator.cpp b/sched/script_validator.cpp
index 43b80dece8..448583f4aa 100644
--- a/sched/script_validator.cpp
+++ b/sched/script_validator.cpp
@@ -15,7 +15,9 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with BOINC.  If not, see <http://www.gnu.org/licenses/>.
 
-// A validator that runs scripts to check and compare results
+// A validator that runs scripts to check and compare results,
+// so that you can do your validation on Python, Perl, bash, etc.
+//
 // cmdline args:
 // --init_script scriptname
 // --compare_script scriptname
diff --git a/sched/validate_util.cpp b/sched/validate_util.cpp
index 1794f05353..3ff52ccf45 100644
--- a/sched/validate_util.cpp
+++ b/sched/validate_util.cpp
@@ -61,7 +61,7 @@ int OUTPUT_FILE_INFO::parse(XML_PARSER& xp) {
     return ERR_XML_PARSE;
 }
 
-int get_output_file_info(RESULT& result, OUTPUT_FILE_INFO& fi) {
+int get_output_file_info(RESULT const& result, OUTPUT_FILE_INFO& fi) {
     char path[MAXPATHLEN];
     string name;
     MIOFILE mf;
@@ -87,7 +87,7 @@ int get_output_file_info(RESULT& result, OUTPUT_FILE_INFO& fi) {
     return ERR_XML_PARSE;
 }
 
-int get_output_file_infos(RESULT& result, vector<OUTPUT_FILE_INFO>& fis) {
+int get_output_file_infos(RESULT const& result, vector<OUTPUT_FILE_INFO>& fis) {
     char path[MAXPATHLEN];
     MIOFILE mf;
     string name;
@@ -115,7 +115,7 @@ int get_output_file_infos(RESULT& result, vector<OUTPUT_FILE_INFO>& fis) {
     return 0;
 }
 
-int get_output_file_path(RESULT& result, string& path) {
+int get_output_file_path(RESULT const& result, string& path) {
     OUTPUT_FILE_INFO fi;
     int retval = get_output_file_info(result, fi);
     if (retval) return retval;
@@ -123,7 +123,7 @@ int get_output_file_path(RESULT& result, string& path) {
     return 0;
 }
 
-int get_output_file_paths(RESULT& result, vector<string>& paths) {
+int get_output_file_paths(RESULT const& result, vector<string>& paths) {
     vector<OUTPUT_FILE_INFO> fis;
     int retval = get_output_file_infos(result, fis);
     if (retval) return retval;
diff --git a/sched/validate_util.h b/sched/validate_util.h
index ab76df26d5..157ad066cd 100644
--- a/sched/validate_util.h
+++ b/sched/validate_util.h
@@ -37,10 +37,10 @@ struct OUTPUT_FILE_INFO {
     int parse(XML_PARSER&);
 };
 
-extern int get_output_file_info(RESULT& result, OUTPUT_FILE_INFO&);
-extern int get_output_file_infos(RESULT& result, std::vector<OUTPUT_FILE_INFO>&);
-extern int get_output_file_path(RESULT& result, std::string&);
-extern int get_output_file_paths(RESULT& result, std::vector<std::string>&);
+extern int get_output_file_info(RESULT const& result, OUTPUT_FILE_INFO&);
+extern int get_output_file_infos(RESULT const& result, std::vector<OUTPUT_FILE_INFO>&);
+extern int get_output_file_path(RESULT const& result, std::string&);
+extern int get_output_file_paths(RESULT const& result, std::vector<std::string>&);
 extern int get_logical_name(
     RESULT& result, std::string& path, std::string& name
 );