Libguestfs - Feb 2014 - [W/ commit: 838a3c9] "inconsistent assumptions over interface Guestfs"

Just did a git pull to the below commit (to get the latest version
1.25.37) and did a local build, this is what I see:

    Error: The files ../ocaml/guestfs.cmi and perl_edit.cmi
           make inconsistent assumptions over interface Guestfs


Haven't investigated further, thought I'd post it here first:

    $ git rev-parse --short HEAD
    838a3c9
    
    $ ./autogen.sh
    
    $ echo $?
    0
    
    $ make -j48
    [. . .]
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
      CC       virt_index_validate-index-scan.o
    ocamlfind ocamlc -g -warn-error CDEFLMPSUVYZX -package str,unix -I
../src/.libs -I ../ocaml -I ../mllib -package gettext-stub -c list_entries.mli
-o list_entries.cmi
      CC       index-scan.o
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    ocamlfind ocamlopt -g -warn-error CDEFLMPSUVYZX -package str,unix -I
../src/.libs -I ../ocaml -I ../mllib -package gettext-stub -c index_parser.ml -o
index_parser.cmx
    ocamlfind ocamlopt -g -warn-error CDEFLMPSUVYZX -package str,unix -I
../src/.libs -I ../ocaml -I ../mllib -package gettext-stub -c cmdline.ml -o
cmdline.cmx
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    ocamlfind ocamlopt -g -warn-error CDEFLMPSUVYZX -package str,unix -I
../src/.libs -I ../ocaml -I ../mllib -package gettext-stub -c list_entries.ml -o
list_entries.cmx
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
      CCLD     virt-index-validate
    ocamlfind ocamlopt -g -warn-error CDEFLMPSUVYZX -package str,unix -I
../src/.libs -I ../ocaml -I ../mllib -package gettext-stub -c builder.ml -o
builder.cmx
    findlib: [WARNING] Interface perl_edit.cmi occurs in several directories: .,
../mllib
    File "builder.ml", line 1:
    Error: The files ../ocaml/guestfs.cmi and perl_edit.cmi
           make inconsistent assumptions over interface Guestfs
    make[2]: *** [builder.cmx] Error 2
    make[2]: Leaving directory `/home/tuser1/src/libguestfs/builder'
    make[1]: *** [all-recursive] Error 1
    make[1]: Leaving directory `/home/tuser1/src/libguestfs'
    make: *** [all] Error 2



-- 
/kashyap

On Sat, Feb 22, 2014 at 06:47:59PM +0530, Kashyap Chamarthy
wrote:
> Just did a git pull to the below commit (to get the latest version
> 1.25.37) and did a local build, this is what I see:
> 
>     Error: The files ../ocaml/guestfs.cmi and perl_edit.cmi
>            make inconsistent assumptions over interface Guestfs
The error means you need to do a 'make clean'.  I believe it is caused
by having an *.ml file move from one directory to another, which
leaves an "orphaned" *.cmi file in the old directory.  This confuses
the compiler because the cmi file is never recompiled, and so
continues to refer to an old Guestfs interface (try
'ocamlobjinfo mllib/perl_edit.cmi' to see interface hashes).  In any
case, 'make clean' will delete *.cmi files and fix the problem.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v

On Sun, Feb 23, 2014 at 06:03:54PM +0000, Richard W.M. Jones
wrote:
> On Sat, Feb 22, 2014 at 06:47:59PM +0530, Kashyap Chamarthy wrote:
> > Just did a git pull to the below commit (to get the latest version
> > 1.25.37) and did a local build, this is what I see:
> > 
> >     Error: The files ../ocaml/guestfs.cmi and perl_edit.cmi
> >            make inconsistent assumptions over interface Guestfs
> 
> The error means you need to do a 'make clean'.  
Ah, I mistakenly thought I did a 'make clean' before that. Looking in my
history buffer, I didn't.
> I believe it is caused
> by having an *.ml file move from one directory to another, which
> leaves an "orphaned" *.cmi file in the old directory.  This
confuses
> the compiler because the cmi file is never recompiled, and so
> continues to refer to an old Guestfs interface (try
> 'ocamlobjinfo mllib/perl_edit.cmi' to see interface hashes).  
Learnt something new there.
> In any
> case, 'make clean' will delete *.cmi files and fix the problem.
Yes, it indeed did it.

Thanks, Rich.

-- 
/kashyap