Add some comments for greater clarity, no changes in logic.

src/slaunch/Makefile.am

@@ -36,6 +36,8 @@ force:
 $(convenience_libs) : force
 	@cd `dirname $@` && $(MAKE) `basename $@`
 
+# debugging information is required for symbols in the attach
+# module so that a debugger can attach to spawned tasks
 attach.o : attach.c
 	$(COMPILE) -c -g -o attach.o $(srcdir)/attach.c 
 

src/slaunch/Makefile.in

@@ -581,6 +581,8 @@ force:
 $(convenience_libs) : force
 	@cd `dirname $@` && $(MAKE) `basename $@`
 
+# debugging information is required for symbols in the attach
+# module so that a debugger can attach to spawned tasks
 attach.o : attach.c
 	$(COMPILE) -c -g -o attach.o $(srcdir)/attach.c 
 

src/srun/Makefile.am

@@ -46,6 +46,8 @@ force:
 $(convenience_libs) : force
 	@cd `dirname $@` && $(MAKE) `basename $@`
 
+# debugging information is required for symbols in the attach 
+# module so that a debugger can attach to spawned tasks
 attach.o : attach.c
 	$(COMPILE) -c -g -o attach.o $(srcdir)/attach.c 
 

src/srun/Makefile.in

@@ -600,6 +600,8 @@ force:
 $(convenience_libs) : force
 	@cd `dirname $@` && $(MAKE) `basename $@`
 
+# debugging information is required for symbols in the attach 
+# module so that a debugger can attach to spawned tasks
 attach.o : attach.c
 	$(COMPILE) -c -g -o attach.o $(srcdir)/attach.c