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Makefile relinks everytime

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# 1  
Old 06-08-2005
Makefile relinks everytime
Hi guys, I'm a firsttime poster. My makefile is relinking everytime, even if nothing changes. Is there anyway to have it stop doing this?

Here the makefile:
Code:

F77C    = /usr/bin/f77 -O
VERSION =9.4
VPATH = ../poten
# executables that can be built from this makefile

OH3S  = ../exe/poly.oh3.serial.exe  

OBJ = dattim.o dateclock.o givtst.o intbsv3.o poly40.o \
polyrr.o headr.o interface.o polysz.o ef.o \
hooks.o ivtstm.o polyag.o rtpjac.o \
energetics.o intbsv1.o main.o acespoly.o \
polyhl.o fromblas.o intbsv2.o poly31.o polymq.o dummy_mpi.o

POT:../poten/oh3.f

.f.o:
        $(F77C) -c $<
.c.o:
        cc -c $<

OH3S:$(OBJ) dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o
        $(F77C) -o $(OH3S) $(OBJ) dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o

And here is the interactive output when I run it:

/usr/bin/f77 -O -o ../exe/poly9.4.oh3.serial.exe dattim.o dateclock.o givtst.o intbsv3.o poly40.o polyrr.o headr.o interface.o polysz.o ef.o hooks.o ivtstm.o polyag.o rtpjac.o energetics.o intbsv1.o main.o acespoly.o polyhl.o fromblas.o intbsv2.o poly31.o polymq.o dummy_mpi.o dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o


Everything is working fine, I just want to get it to stop relinking even when nothing changes. Thanks!
Last edited by Perderabo; 06-13-2005 at 07:25 AM.. Reason: Add code tags for readability
# 2  
Old 06-13-2005
One reason might me that the time stamp of your source files is greater than the generated object files. In such a case, every time the make utility will assume that object files are older as compaired to source file.

In such case, Change the time stamp of all the relavent source files using touch command.

This should solve your problem.
# 3  
Old 06-13-2005
This line is improbable:
OH3S:$(OBJ) dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o

maybe it should be:
$(OH3S):$(OBJ) dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o

but it's hard to say for sure with such a messy makefile. I really don't know what this line is supposed to be for:
POT:../poten/oh3.f

but as near as I can tell it exerts no influence over the final result. I guess it might do something if you invoke make with "make POT". But that would not yield the result you give.
# 4  
Old 06-13-2005
The time stamps are fine
The source files are older than the objects, and the objects are older than the executable. Is there any other reason that Make would relink?
# 5  
Old 06-13-2005
Quote:
Originally Posted by bellings
The source files are older than the objects, and the objects are older than the executable. Is there any other reason that Make would relink?
See this post. Smilie
# 6  
Old 06-13-2005
This line is correct:
OH3S:$(OBJ) dummy_mpi.o oh3.o setup4.o surf4.o coord4.o chain4.o

Yes, the purpose for this line:
POT:../poten/oh3.f
is for 'Make POT'.

But why is it relinking?
# 7  
Old 06-13-2005
That line claims to make a file called OH3S but probably doesn't. Would it really kill you to try changing it to:
$(OH3S)
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