Re: [Caml-list] installing caml-light

[Michel Quercia <michel.quercia@prepas.org>]

Le vendredi 18 Juin 2004 18:44, Marco Maggesi a écrit :
> Hi everybody,
>
> I am trying to install Caml-light with no success (from
> cl75unix.tar.gz).  I made two attempts on two different machines:
>
>   1. On a Linux Gentoo box (you can find the complete trace of the
>      compilation at http://math.unice.fr/~maggesi/cl75gentoo.log)
>
>      Problem: The Caml-light core compiles correctly but I am not able
>      to compile the contributions, in particular "unix".  The precise
>      error is
>
>        make[1]: Entering directory `/home/maggesi/cl/cl75/contrib/libunix'
>        gcc -I../../src/runtime -O    -c -o accept.o accept.c
>        In file included from /usr/include/sys/un.h:38,
>                         from socketaddr.h:4,
>                         from accept.c:8:
>        /usr/include/string.h:278: error: syntax error before '(' token
>        /usr/include/string.h:278: error: syntax error before "const"
>        make[1]: *** [accept.o] Error 1

There is a micmac in the src/runtime/config.h file. Comment out (or fix) the 
definition of bcopy :

---------------------------------------------------------------------------------
#ifdef HAS_MEMMOVE
#define bcopy(src,dst,len) memmove((dst), (src), (len))
#else
#ifdef HAS_BCOPY
/* Nothing to do */
#else
#ifdef HAS_MEMCPY
#define bcopy(src,dst,len) memcpy((dst), (src), (len))
#else
#define bcopy(src,dst,len) memmov((dst), (src), (len))
#define USING_MEMMOV
#endif
#endif
#endif
---------------------------------------------------------------------------------

On Linux bcopy is already defined and the redefinition above triggers this 
(strange) error when HAS_MEMMOVE is set.

You will encounter another problem later when compiling libunix related to 
errno which is a macro and no longer an external variable. The fix for this 
is to remove all declarations "extern int errno" in libunix/*.c files and add 
"#include <errno.h>" when not already present.

-- 
Michel Quercia
23 rue de Montchapet, 21000 Dijon
http://michel.quercia.free.fr (maths)
http://pauillac.inria.fr/~quercia (informatique)
mailto:michel.quercia@prepas.org

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