ROOT 5.34/34 not compiling still with PYTHIA 8.20


The ROOT 5.34/XX plus PYTHIA 82x compilation problem mentioned here: … -6862.html

is not solved despite the release statement “Fix [hack] to support Pythia8 > 200” in … e-notes#34. I’ve just downloaded on my linux(*) the latest versions of both codes: … rce.tar.gz

Pythia8 compiled without problems but, when compiling ROOT + PY8, I get this error:

Generating dictionary montecarlo/pythia8/src/G__Pythia8.cxx…
core/utils/src/rootcint_tmp -cint -f montecarlo/pythia8/src/G__Pythia8.cxx -c -I/home/enterria/progs/pythia/pythia8/include /home/enterria/progs/root/root/montecarlo/pythia8/inc/TPythia8Decayer.h /home/enterria/progs/root/root/montecarlo/pythia8/inc/TPythia8.h /home/enterria/progs/root/root/montecarlo/pythia8/inc/LinkDef.h
Error: Symbol Dl_info is not defined in current scope /usr/include/dlfcn.h:95:
Error: Syntax error /usr/include/dlfcn.h:99:
Error: Syntax error /usr/include/dlfcn.h:104:
Error: Missing whitespace at or after line 190.
Error: Unexpected end of file (G__fgetspace():2) /usr/include/dlfcn.h:192:
Report: Unrecognized string ‘__END_DECLS’ ignored /usr/include/dlfcn.h:193:
Warning: Error occurred during reading source files
Warning: Error occurred during dictionary source generation
!!!Removing montecarlo/pythia8/src/G__Pythia8.cxx montecarlo/pythia8/src/G__Pythia8.h !!!
Error: core/utils/src/rootcint_tmp: error loading headers…
make: *** [montecarlo/pythia8/src/G__Pythia8.cxx] Error 1
make: *** Waiting for unfinished jobs…

(*) uname -a
Linux 2.6.32-504.16.2.el6.x86_64 #1 SMP Tue Apr 21 21:44:51 CEST 2015 x86_64 x86_64 x86_64 GNU/Linux

Thanks, David

Can you tell the contents of /usr/include/dlfcn.h in your system?

more /usr/include/dlfcn.h

/* User functions for run-time dynamic loading.
Copyright © 1995-2001,2003,2004,2006,2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */

#ifndef _DLFCN_H
#define _DLFCN_H 1

#include <features.h>
#define __need_size_t
#include <stddef.h>

/* Collect various system dependent definitions and declarations. */
#include <bits/dlfcn.h>

#ifdef __USE_GNU
/* If the first argument of dlsym' ordlvsym’ is set to RTLD_NEXT
the run-time address of the symbol called NAME in the next shared
object is returned. The “next” relation is defined by the order
the shared objects were loaded. */

define RTLD_NEXT ((void *) -1l)

/* If the first argument to dlsym' ordlvsym’ is set to RTLD_DEFAULT
the run-time address of the symbol called NAME in the global scope
is returned. */

define RTLD_DEFAULT ((void *) 0)

/* Type for namespace indeces. */
typedef long int Lmid_t;

/* Special namespace ID values. */

define LM_ID_BASE 0 /* Initial namespace. */

define LM_ID_NEWLM -1 /* For dlmopen: request new namespace. */



/* Open the shared object FILE and map it in; return a handle that can be
passed to `dlsym’ to get symbol values from it. */
extern void *dlopen (__const char *__file, int __mode) __THROW;

/* Unmap and close a shared object opened by dlopen'. The handle cannot be used again after callingdlclose’. */
extern int dlclose (void *__handle) __THROW __nonnull ((1));

/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME. */
extern void *dlsym (void *__restrict __handle,
__const char *__restrict __name) __THROW __nonnull ((2));

#ifdef __USE_GNU
/* Like `dlopen’, but request object to be allocated in a new namespace. */
extern void *dlmopen (Lmid_t __nsid, __const char *__file, int __mode) __THROW;

/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME with VERSION. */
extern void *dlvsym (void *__restrict __handle,
__const char *__restrict __name,
__const char *__restrict __version)
__THROW __nonnull ((2, 3));

/* When any of the above functions fails, call this function
to return a string describing the error. Each call resets
the error string so that a following call returns null. */
extern char *dlerror (void) __THROW;

#ifdef __USE_GNU
/* Structure containing information about object searched using
`dladdr’. */
typedef struct
__const char dli_fname; / File name of defining object. */
void dli_fbase; / Load address of that object. */
__const char dli_sname; / Name of nearest symbol. */
void dli_saddr; / Exact value of nearest symbol. */
} Dl_info;

/* Fill in *INFO with the following information about ADDRESS.
Returns 0 iff no shared object’s segments contain that address. */
extern int dladdr (__const void *__address, Dl_info *__info)
__THROW __nonnull ((2));

/* Same as `dladdr’, but additionally sets *EXTRA_INFO according to FLAGS. */
extern int dladdr1 (__const void *__address, Dl_info *__info,
void **__extra_info, int __flags) __THROW __nonnull ((2));

/* These are the possible values for the FLAGS argument to `dladdr1’.
This indicates what extra information is stored at *EXTRA_INFO.
It may also be zero, in which case the EXTRA_INFO argument is not used. /
Matching symbol table entry (const ElfNN_Sym *). */

/* The object containing the address (struct link_map *).  */


/* Get information about the shared object HANDLE refers to.
REQUEST is from among the values below, and determines the use of ARG.

On success, returns zero. On failure, returns -1 and records an error
message to be fetched with `dlerror’. */
extern int dlinfo (void *__restrict __handle,
int __request, void *__restrict __arg)
__THROW __nonnull ((1, 3));

/* These are the possible values for the REQUEST argument to dlinfo'. */ enum { /* Treat ARG aslmid_t *’; store namespace ID for HANDLE there. */

/* Treat ARG as `struct link_map **';
   store the `struct link_map *' for HANDLE there.  */

RTLD_DI_CONFIGADDR = 3,	/* Unsupported, defined by Solaris.  */

/* Treat ARG as `Dl_serinfo *' (see below), and fill in to describe the
   directories that will be searched for dependencies of this object.
   RTLD_DI_SERINFOSIZE fills in just the `dls_cnt' and `dls_size'
   entries to indicate the size of the buffer that must be passed to
   RTLD_DI_SERINFO to fill in the full information.  */

/* Treat ARG as `char *', and store there the directory name used to
   expand $ORIGIN in this shared object's dependency file names.  */

RTLD_DI_PROFILENAME = 7,	/* Unsupported, defined by Solaris.  */
RTLD_DI_PROFILEOUT = 8,	/* Unsupported, defined by Solaris.  */

/* Treat ARG as `size_t *', and store there the TLS module ID
   of this object's PT_TLS segment, as used in TLS relocations;
   store zero if this object does not define a PT_TLS segment.  */

/* Treat ARG as `void **', and store there a pointer to the calling
   thread's TLS block corresponding to this object's PT_TLS segment.
   Store a null pointer if this object does not define a PT_TLS
   segment, or if the calling thread has not allocated a block for it.  */



/* This is the type of elements in Dl_serinfo', below. Thedls_name’ member points to space in the buffer passed to `dlinfo’. */
typedef struct
char dls_name; / Name of library search path directory. /
unsigned int dls_flags; /
Indicates where this directory came from. */
} Dl_serpath;

/* This is the structure that must be passed (by reference) to dlinfo' for the RTLD_DI_SERINFO and RTLD_DI_SERINFOSIZE requests. */ typedef struct { size_t dls_size; /* Size in bytes of the whole buffer. */ unsigned int dls_cnt; /* Number of elements indls_serpath’. /
Dl_serpath dls_serpath[1]; /
Actually longer, dls_cnt elements. /
} Dl_serinfo;
#endif /
__USE_GNU */


#endif /* dlfcn.h */

David, I do not understand. The file TPythia8.h in 5.34/34 contains the lines

#ifdef __CINT__
#define _DLFCN_H_
#define _DLFCN_H

#include "TGenerator.h"
#include "Pythia8/Pythia.h"

and this should prevent the inclusion of dlfcn.h. Are you sure that you are using the the right version?

yes, I have this header file … I’ll try again from a clean start.

thanks, david