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rdicosmo / parmap

Parmap is a minimalistic library allowing to exploit multicore architecture for OCaml programs with minimal modifications.
http://rdicosmo.github.io/parmap/
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build error: No rule to make target 'setcore.cmi', needed by 'parmap.cma' #78

Closed taskset closed 4 years ago

taskset commented 5 years ago

bash-4.3# git remote -v origin https://github.com/rdicosmo/parmap.git (fetch) origin https://github.com/rdicosmo/parmap.git (push) bash-4.3#

bash-4.3# git pull Already up-to-date.

bash-4.3# git status On branch master Your branch is up-to-date with 'origin/master'. nothing to commit, working tree clean

bash-4.3# make ocamlfind ocamlc -package "unix bigarray " -c bytearray.mli ocamlfind ocamlc -package "unix bigarray " -c parmap_utils.mli ocamlfind ocamlc -package "unix bigarray " -c parmap.mli make: *** No rule to make target 'setcore.cmi', needed by 'parmap.cma'. Stop.

A workaround for this problem is to manually compile setcore.ml: bash-4.3# ocamlc -g -c setcore.ml bash-4.3# make This time we can compile successfully.

UnixJunkie commented 5 years ago

Can you try this:

To compile from git, do this first :

aclocal -I m4
autoconf
autoheader
./configure
make
taskset commented 5 years ago

@UnixJunkie Thank you very much. I tried this method, but it still had problems:

bash-4.3# bash-4.3# git pull Already up-to-date. bash-4.3# bash-4.3# git status On branch master Your branch is up-to-date with 'origin/master'. nothing to commit, working tree clean bash-4.3# bash-4.3# aclocal -I m4 bash-4.3# bash-4.3# autoconf bash-4.3# bash-4.3# autoheader bash-4.3# bash-4.3# ./configure checking for ocamlc... ocamlc OCaml version is 4.06.0 OCaml library path is /usr/lib64/ocaml checking for ocamlopt... ocamlopt checking for ocamlc.opt... ocamlc.opt checking for ocamlopt.opt... ocamlopt.opt checking for dynlink.cmxa... yes checking for ocaml... ocaml checking for ocamldep... ocamldep checking for ocamlmktop... ocamlmktop checking for ocamlmklib... ocamlmklib checking for ocamldoc... ocamldoc checking for ocamlbuild... no checking for ocamlfind... ocamlfind checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking sched.h usability... yes checking sched.h presence... yes checking for sched.h... yes checking whether sched_setaffinity is declared... yes checking mach/thread_policy.h usability... no checking mach/thread_policy.h presence... no checking for mach/thread_policy.h... no checking whether thread_policy_set is declared... no ocamlbuild does not exists or it does not support -use-ocamlfind configure: creating ./config.status config.status: creating Makefile_3.11 config.status: creating config.h config.status: config.h is unchanged bash-4.3# bash-4.3# make ocamlfind ocamlc -package "unix bigarray " -c bytearray.mli ocamlfind ocamlc -package "unix bigarray " -c parmap_utils.mli ocamlfind ocamlc -package "unix bigarray " -c parmap.mli make: *** No rule to make target 'setcore.cmi', needed by 'parmap.cma'. Stop. bash-4.3#

UnixJunkie commented 5 years ago

Can you install ocamlbuild and try again?

taskset commented 5 years ago

hi @UnixJunkie , thanks again.

1, I've install ocamlbuild. $ opam list

Packages matching: installed

Name # Installed # Synopsis

base-bigarray base base-threads base base-unix base conf-m4 1 Virtual package relying on m4 ocaml 4.06.0 The OCaml compiler (virtual package) ocaml-config 1 OCaml Switch Configuration ocaml-system 4.06.0 The OCaml compiler (system version, from outside of opam) ocamlbuild 0.12.0 OCamlbuild is a build system with builtin rules to easily build most OCaml projects. ocamlfind 1.8.0 A library manager for OCaml

2, but parmap still can't detect ocambuild. $ ./configure checking for ocamlc... ocamlc OCaml version is 4.06.0 OCaml library path is /usr/lib64/ocaml checking for ocamlopt... ocamlopt checking for ocamlc.opt... ocamlc.opt checking for ocamlopt.opt... ocamlopt.opt checking for dynlink.cmxa... yes checking for ocaml... ocaml checking for ocamldep... ocamldep checking for ocamlmktop... ocamlmktop checking for ocamlmklib... ocamlmklib checking for ocamldoc... ocamldoc checking for ocamlbuild... no checking for ocamlfind... ocamlfind

3, I manually set up a soft link to ocamlbuild.native： $ sudo ln -s ~/.opam/default/bin/ocamlbuild.native /usr/local/bin/ocamlbuild

4，ocambuild can be detected this time. $ ./configure checking for ocamlc... ocamlc OCaml version is 4.06.0 OCaml library path is /usr/lib64/ocaml checking for ocamlopt... ocamlopt checking for ocamlc.opt... ocamlc.opt checking for ocamlopt.opt... ocamlopt.opt checking for dynlink.cmxa... yes checking for ocaml... ocaml checking for ocamldep... ocamldep checking for ocamlmktop... ocamlmktop checking for ocamlmklib... ocamlmklib checking for ocamldoc... ocamldoc checking for ocamlbuild... ocamlbuild checking for ocamlfind... ocamlfind

4，and then, the parmap project can be compiled successfully.

Thanks.

UnixJunkie commented 5 years ago

So, the problem was that you tried to build parmap without having installed all your ocaml env with opam, and that did not work. I guess @rdicosmo will decide if this needs to be supported or if this issue can be closed. My advice: forget all system-wide ocaml packages and install everything via opam.

rdicosmo commented 5 years ago

I agree with Francois, mixing system-wide packages and opam ones is bound to create compatibility and maintenance issues that we cannot commit to solve.

Since the opam-only installation works fine, I would close this issue, unless there is a strong argument to keep it open.

On Sun, Nov 04, 2018 at 11:17:14PM -0800, Francois Berenger wrote:

So, the problem was that you tried to build parmap without having installed all your ocaml env with opam, and that did not work. I guess @rdicosmo will decide if this needs to be supported or if this issue can be closed. My advice: forget all system-wide ocaml packages and install everything via opam.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.*

-- Roberto

taskset commented 5 years ago

Hi, @UnixJunkie and @rdicosmo thank you. I really appreciate your help and instruction. For this problem, parmap relies on ocamlbuild, and when the configure script detects that ocamlbuid does not exist, it should report an error rather than continue running. Regards,

UnixJunkie commented 5 years ago

If you can provide a patch to the configure script in order to fix it this way, your help would be greatly appreciated. Unfortunately, I know nothing about configure and m4.

UnixJunkie commented 5 years ago

The user suggests the following fix:

the configure script detects that ocamlbuid does not exist, it should report an error rather

It seems reasonable. I don't know configure/m4/autoconf but I guess it should be easy to implement.