Reference to undefined global `Camlp4_config'

Reference to undefined global `Camlp4_config'

[Joel Reymont]

Any suggestions on how to resolve this?

ocamlfind installs into /usr/local/lib/site-lib and there's a site-lib/ 
camlp4 directory with META in it.

	Thanks, Joel

---

ocamlfind ocamlc -package 'oUnit, extlib, camlp4' -linkpkg -g src/ 
easy_ast.cmo src/easy_code.cmo src/easy_lexer.cmo src/easy_symtab.cmo  
src/token.cmo src/static1.cmo src/easy_parser.cmo src/test_tools.cmo  
src/parser_test.cmo src/test.cmo -o src/test.byte
File "_none_", line 1, characters 0-1:
Error: Error while linking src/easy_lexer.cmo:
Reference to undefined global `Camlp4_config'

---
http://tinyco.de
--- Mac & iPhone

Re : [Caml-list] Reference to undefined global `Camlp4_config'

[Matthieu Wipliez]

I'm not familiar with ocamlfind, but for Camlp4 you need this:
  -I +camlp4 camlp4lib.cma

Does this solve the problem?

Cheers,
Matthieu



----- Message d'origine ----
> De : Joel Reymont <joelr1@gmail.com>
> À : O'Caml Mailing List <caml-list@yquem.inria.fr>
> Envoyé le : Mercredi, 11 Mars 2009, 14h29mn 02s
> Objet : [Caml-list] Reference to undefined global `Camlp4_config'
> 
> Any suggestions on how to resolve this?
> 
> ocamlfind installs into /usr/local/lib/site-lib and there's a site-lib/camlp4 
> directory with META in it.
> 
>     Thanks, Joel
> 
> ---
> 
> ocamlfind ocamlc -package 'oUnit, extlib, camlp4' -linkpkg -g src/easy_ast.cmo 
> src/easy_code.cmo src/easy_lexer.cmo src/easy_symtab.cmo src/token.cmo 
> src/static1.cmo src/easy_parser.cmo src/test_tools.cmo src/parser_test.cmo 
> src/test.cmo -o src/test.byte
> File "_none_", line 1, characters 0-1:
> Error: Error while linking src/easy_lexer.cmo:
> Reference to undefined global `Camlp4_config'
> 
> ---
> http://tinyco.de
> --- Mac & iPhone
> 
> 
> 
> 
> 
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Re: Re : [Caml-list] Reference to undefined global `Camlp4_config'

[Joel Reymont]

On Mar 11, 2009, at 1:33 PM, Matthieu Wipliez wrote:

>
> I'm not familiar with ocamlfind, but for Camlp4 you need this:
>  -I +camlp4 camlp4lib.cma

I was under the impression that ocamlfind -packages takes care of  
adding the camlp4 bits.

> Does this solve the problem?


Not really but thanks for trying! The ocamlfind command that  
ocamlbuild is using, e.g.

+ ocamlfind ocamlc -verbose -package 'oUnit, extlib, camlp4' -linkpkg - 
g src/easy_ast.cmo src/easy_code.cmo src/easy_lexer.cmo src/ 
easy_symtab.cmo src/token.cmo src/static1.cmo src/easy_parser.cmo src/ 
test_tools.cmo src/parser_test.cmo src/test.cmo -o src/test.byte

Boils down to this

Effective set of compiler predicates:  
pkg_unix,pkg_oUnit,pkg_extlib,pkg_camlp4,autolink,byte
+ ocamlc.opt -verbose -g -o src/test.byte -I /usr/local/lib/ocaml/site- 
lib/oUnit -ccopt -I/usr/local/lib/ocaml/site-lib/oUnit -I /usr/local/ 
lib/ocaml/site-lib/extlib -ccopt -I/usr/local/lib/ocaml/site-lib/ 
extlib -I /usr/local/lib/ocaml/camlp4 -ccopt -I/usr/local/lib/ocaml/ 
camlp4 -ccopt -L/usr/local/lib/ocaml/site-lib/oUnit -ccopt -L/usr/ 
local/lib/ocaml/site-lib/extlib -ccopt -L/usr/local/lib/ocaml/camlp4 / 
usr/local/lib/ocaml/unix.cma /usr/local/lib/ocaml/site-lib/oUnit/ 
oUnit.cma /usr/local/lib/ocaml/site-lib/extlib/extLib.cma src/ 
easy_ast.cmo src/easy_code.cmo src/easy_lexer.cmo src/easy_symtab.cmo  
src/token.cmo src/static1.cmo src/easy_parser.cmo src/test_tools.cmo  
src/parser_test.cmo src/test.cmo
File "_none_", line 1, characters 0-1:
Error: Error while linking src/easy_lexer.cmo:
Reference to undefined global `Camlp4_config'
ocamlc.opt returned with exit code 2
Command exited with code 2.

It's using camlp4 for -I and -L but it's not pulling in the library  
for some reason.

	Thanks, Joel

---
http://tinyco.de
Mac, C++, OCaml

Re: [Caml-list] Reference to undefined global `Camlp4_config'

[Jérémie Dimino]

Joel Reymont wrote:
> ocamlfind ocamlc -package 'oUnit, extlib, *camlp4*' -linkpkg -g src/ 
> easy_ast.cmo src/easy_code.cmo src/easy_lexer.cmo src/easy_symtab.cmo  
> src/token.cmo src/static1.cmo src/easy_parser.cmo src/test_tools.cmo  
> src/parser_test.cmo src/test.cmo -o src/test.byte
> File "_none_", line 1, characters 0-1:
> Error: Error while linking src/easy_lexer.cmo:
> Reference to undefined global `Camlp4_config'

The "camlp4" package is only useful when using syntax extensions (it
defines the "preprocessor" variable). If you want to use the camlp4
library you must use the "camlp4.lib" package instead.

Jérémie

Re: [Caml-list] Reference to undefined global `Camlp4_config'

[Joel Reymont]

On Mar 11, 2009, at 2:04 PM, Jérémie Dimino wrote:

> If you want to use the camlp4 library you must use the "camlp4.lib"  
> package instead.


That solves it, thanks!

---
http://tinyco.de
Mac, C++, OCaml