I am observing a very weird behaviour of gmake and I am trying to see
what I may have done to cause the problem. I have lots of fortran and C
source which needs to be linked to an executable. The relavant portion
of the makefile is as follows
----------------
exename: printflags data code
@$(ECHO) Linking in Units and Libraries
$(LINK) $(LFLAGS) $(EXE) $(ALL_OBJS) $(LIB) $(CONFIG_LIB)
@$(ECHO) SUCCESS
# end of rules for exename
--------------
When I run "gmake --dry-run -d -r | tail -6" I get the following
-------------------------
echo SUCCESS
Successfully remade target file `exename'.
Finished prerequisites of target file `default'.
Must remake target `default'.
Successfully remade target file `default'.
gmake: Nothing to be done for `default'.
------------------------
If I comment out the "$(LINK)" line and then run "gmake --dry-run -d -r
| tail -6" I get the following:
---------------------------
echo Linking in Units and Libraries
echo SUCCESS
Successfully remade target file `flash3'.
Finished prerequisites of target file `default'.
Must remake target `default'.
Successfully remade target file `default'.
---------------------------
Why is there an extra "gmake: Nothing to be done for `default'" in the
first case, when it has just finished making it? And commenting out the
"LINK" line removes the extra line. Since both commands are in
"dry-run" mode, commenting out the line shouldn't have this effect.
Is there something which causes gmake to update the target it has just
finished making? Since this is part of a large makefile, I am only able
to give the (hopefully) relevant part of the Makefile.
- Murali
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