Index: server/common/oursrc/execsys/configure.in
===================================================================
--- server/common/oursrc/execsys/configure.in	(revision 163)
+++ server/common/oursrc/execsys/configure.in	(revision 164)
@@ -17,8 +17,13 @@
 ])])
 
+# the second argument should contain no spaces ("[]") if the corresponding
+# extension is three character long (eg, "php"), and it should contain
+# one space ("[ ]") if the corresponding extension is two characters long
+# (eg, "pl")
+
 SUPPORT([pl], [ ])
 SUPPORT([php], [])
 SUPPORT([py], [ ])
-SUPPORT([exe], [ ])
+SUPPORT([exe], [])
 
 AC_SUBST(UPD_VARS)