Hi,
I have found a bug with mkdependHS. The bug which I am reporting is present
in ghc 2.07, but I believe that it has been around for sometime. It is by no
means a serious bug, but worth reporting. I have included below a makefile,
the two Haskell modules and the make error which demonstrate the bug.
Essentially, mkdependHS always picks-up an import statement even if the
import is commented as shown in My_Module.hs below. Commenting imports in
this manner will cause mkdependHS to crash with the error I have included.
_________________________________ Main.hs _________________________________
module Main where
import My_Module
main = done
______________________________ My_Module.hs _______________________________
module My_Module where
{-
import Another_Module
-}
foo :: Int
foo = 10
________________________________ makefile _________________________________
HC = ghc
SRCS = Main.hs My_Module.hs
OBJS = Main.o My_Module.o
all: buggy
buggy: $(OBJS)
$(HC) -o buggy $(OBJS)
%.hi: %.o
@:
%.hi: %.hs
$(HC) -c $<
%.o: %.hs
$(HC) -c $<
clean:
rm -f *.o *.hi
depend :
mkdependHS -- $(SRCS)
# DO NOT DELETE: Beginning of Haskell dependencies
Main.o : Main.hs
Main.o : ./My_Module.hi
My_Module.o : My_Module.hs
# DO NOT DELETE: End of Haskell dependencies
_______________________________ the error _________________________________
yeats.ucc.ie> make depend
mkdependHS -- Main.hs My_Module.hs
No file `Another_Module.hi', `Another_Module.lhs', `Another_Module.hs' (reqd from file
`My_Module.hs')
among import directories:
.
*** Error code 2
make: Fatal error: Command failed for target `depend'
Happy bug-fixing,
Barry.
______________________________________________________________________________
Barry O'Sullivan, Department of Computer Science, | Tel: +353-(0)21-903085
National University of Ireland, Cork (UCC), Ireland | Fax: +353-(0)21-903113
