Rooters,
I'm using ROOT v 2.23/12 on Red Hat Linux V5.0/x86 with GNU make 3.77
and gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release).
I'm trying to compile a class that I wrote, and when the dictionary
gets compiled, I get the same error over and over, no matter what I do.
So I tried compiling and loading the tetris program into ROOT, it worked
fine using the Makefile in that directory.
Next I made a testclass with an Int_t private memeber and some getters
and setters to see if that would compile, no dice, same set of errors,
but then by some miracle, it compiled and won't load into ROOT.
Header: testclass.h
#ifndef __Testclass__
#define __Testclass__
#include "TObject.h"
class Testclass : public TObject{
Int_t name;
public:
Testclass();
virtual ~Testclass();
Int_t GetTitle();
void SetTitle(Int_t newtitle);
ClassDef(Testclass,1);
};
#endif
messages on compilation:
rcas2023 % make
g++ -O -Wall -fPIC -I/opt/phenix/root/include -c testclass.cxx
Generating dictionary testclassDict...
Note: link requested for unknown class testclass FILE:G__autoLinkDef.h
LINE:7
Note: operator new() masked 1c
Note: operator delete() masked 1c
g++ -O -Wall -fPIC -I/opt/phenix/root/include -c testclassDict.cxx
g++ -shared -g testclass.o testclassDict.o -o testclass.so
errors in ROOT:
root [0] gSystem->Load("testclass.so")
dlopen error: /direct/u0b/rfliller/data/ROOT/./testclass.so: undefined
symbol: ShowMembers__9TestclassR16TMemberInspectorPc
Load Error: Dynamic link library
/direct/u0b/rfliller/data/ROOT/./testclass.so can not load
(int)(-1)
*** Interpreter error recovered ***
Just for the record, here are the errors that I was getting (different
class name, but identical errors).
rcas2023 % make
g++ -O -Wall -fPIC -I/opt/phenix/root/include -c Data.cxx
Generating dictionary testclassDict...
Note: operator new() masked 1c
Note: operator delete() masked 1c
Class Data: Streamer() not declared
Class Data: ShowMembers() not declared
g++ -O -Wall -fPIC -I/opt/phenix/root/include -c DataDict.cxx
DataDict.cxx: In function `int G__Data_ClassDef_8_0(struct G__value *,
const char *, struct G__param *, int)':
DataDict.cxx:98: parse error before `private'
DataDict.cxx:98: warning: control reaches end of non-void function
`G__Data_ClassDef_8_0(G__value *, const char *, G__param *, int)'
DataDict.cxx: In function `Version_t Class_Version()':
DataDict.cxx:98: `libp' undeclared (first use this function)
DataDict.cxx:98: (Each undeclared identifier is reported only once
DataDict.cxx:98: for each function it appears in.)
DataDict.cxx:98: warning: control reaches end of non-void function
`Class_Version()'
DataDict.cxx: At top level:
DataDict.cxx:98: virtual outside class declaration
DataDict.cxx:98: non-member function `IsA()' cannot have `const' method
qualifier
DataDict.cxx: In function `class TClass * IsA()':
DataDict.cxx:98: confused by earlier errors, bailing out
make: *** [DataDict.o] Error 1
Sorry this is so long, but thanks for any help.
==============================================================================
Ray Fliller: rfliller@bnl.gov Office Phone: (631)-344-6124
C-A Accelerator Physics
Building 911
Brookhaven National Lab
Upton, NY 11973 Office: Room 211
==============================================================================
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