RE: help :: cant run due to libstdc++

RE: help :: cant run due to libstdc++

[David Korn]

>-----Original Message-----
>From: Umapathy S [ mailto:nsupathy@myrealbox.com ]
>Sent: 01 March 2001 17:13

>I tried to link forcibly as
>    /usr/local/bin/g++ -ohello hello.o 
>-l/usr/local/lib/libstdc++.a.2.10.0
>
>I got the list of errors as follows
>    ld: fatal: library -l/usr/local/lib/libstdc++.a.2.10.0: not found
>(!!!!but it is there and not corrupted)
>    ld: fatal: File processing errors. No output written to hello
>    collect2: ld returned 1 exit status

  Check the file permissions for it: is it not readable by you perhaps?

>>     ld.so.1:hello: fatal: libstdc++.so.2.10.0: open failed: No such
>> file or directory

  This is an error message from the dynamic linker.  Your copy of gcc has
a dynamic link library for libstdc++, and it is not the 'ld' linker that
is failing and complaining, but the 'ld.so' dynamic (run-time) linker.
Note that libstdc++.so.2.10.0 is not the same as libstdc++.a.2.10.0

  Try using

export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib

to add /usr/local/lib to the places searched by the dynamic linker.

  These are just suggestions: let us know if they work or not.

       DaveK
-- 
 All your base are belong to us!


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Re: help :: cant run due to libstdc++

[Umapathy S]

Thanks David, it works
I followed both of your suggestions to make it work

Previously, I didnt care about the permissions for libstdc++.so.2.10.0,
because I installed the package as root (super user, I suspect I cant
install, if I am not a root).  The permissions for that file are -r-xr-xr-x.
So I should be able to execute "hello" in my own login, but I cant.  During
run time, when I am invoking "hello" it says "open failed: No such file or
directory".  For inadequate permissions it should have said "Permission
denied". It is not identifying the directory.

I logined as root and try executing the same file, it executed.

I already set the Library path for the linker, so that was not a  problem

May be I am missing something important

cheers
Umapathy S


----- Original Message -----
From: "David Korn" <dkorn@pixelpower.com>
To: "'Umapathy S'" <nsupathy@myrealbox.com>; "Anthony Lee"
<al012@energex.com.au>
Cc: <gcc-help@gcc.gnu.org>
Sent: Thursday, March 01, 2001 3:42 PM
Subject: RE: help :: cant run due to libstdc++


>
> >-----Original Message-----
> >From: Umapathy S [ mailto:nsupathy@myrealbox.com ]
> >Sent: 01 March 2001 17:13
>
> >I tried to link forcibly as
> >    /usr/local/bin/g++ -ohello hello.o
> >-l/usr/local/lib/libstdc++.a.2.10.0
> >
> >I got the list of errors as follows
> >    ld: fatal: library -l/usr/local/lib/libstdc++.a.2.10.0: not found
> >(!!!!but it is there and not corrupted)
> >    ld: fatal: File processing errors. No output written to hello
> >    collect2: ld returned 1 exit status
>
>   Check the file permissions for it: is it not readable by you perhaps?
>
> >>     ld.so.1:hello: fatal: libstdc++.so.2.10.0: open failed: No such
> >> file or directory
>
>   This is an error message from the dynamic linker.  Your copy of gcc has
> a dynamic link library for libstdc++, and it is not the 'ld' linker that
> is failing and complaining, but the 'ld.so' dynamic (run-time) linker.
> Note that libstdc++.so.2.10.0 is not the same as libstdc++.a.2.10.0
>
>   Try using
>
> export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib
>
> to add /usr/local/lib to the places searched by the dynamic linker.
>
>   These are just suggestions: let us know if they work or not.
>
>        DaveK
> --
>  All your base are belong to us!
>
>
> **********************************************************************
> This email and any files transmitted with it are confidential and
> intended solely for the use of the individual or entity to whom they
> are addressed. If you have received this email in error please notify
> the system manager.
>
> This footnote also confirms that this email message has been swept by
> MIMEsweeper for the presence of computer viruses.
>
> www.mimesweeper.com
> **********************************************************************
>

Re: help :: cant run due to libstdc++

[Alexandre Oliva]

On Mar  2, 2001, "Umapathy S" <nsupathy@myrealbox.com> wrote:

> I logined as root and try executing the same file, it executed.

See whether root has LD_LIBRARY_PATH set or something like that.  I'm
pretty sure this is not a permission problem.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

Re: help :: cant run due to libstdc++

[Umapathy S]

I checked that out.
LD_LIBRARY_PATH of root was not set to /usr/local/lib. If I execute now, the
same open failed erorr occurs.  Then, I set it to /usr/local/lib, it
executes fine.

But in my login  LD_LIBRARY_PATH  is set to /usr/local/lib already. If I
execute my "hello" program it says open failed error.

Still cant trace out.

----- Original Message -----
From: "Alexandre Oliva" <aoliva@redhat.com>
To: "Umapathy S" <nsupathy@myrealbox.com>
Cc: "David Korn" <dkorn@pixelpower.com>; <gcc-help@gcc.gnu.org>
Sent: Friday, March 02, 2001 4:46 AM
Subject: Re: help :: cant run due to libstdc++


> On Mar  2, 2001, "Umapathy S" <nsupathy@myrealbox.com> wrote:
>
> > I logined as root and try executing the same file, it executed.
>
> See whether root has LD_LIBRARY_PATH set or something like that.  I'm
> pretty sure this is not a permission problem.
>
> --
> Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
> Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
> CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
> Free Software Evangelist    *Please* write to mailing lists, not to me
>

Re: help :: cant run due to libstdc++

[Alexandre Oliva]

On Mar  2, 2001, "Umapathy S" <nsupathy@myrealbox.com> wrote:

> But in my login  LD_LIBRARY_PATH  is set to /usr/local/lib already.

Is it exported?  (or setenved, depending on the shell you use)

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

Re: help :: cant run due to libstdc++

[Umapathy S]

I sorted it out.
I made the changes in my .profile LD_LIBRARY_PATH
Then I logged out and logged in.
It worked fine.
Thanks for all ur help
cheers
Umapathy S

----- Original Message -----
From: "Umapathy S" <nsupathy@myrealbox.com>
To: "Alexandre Oliva" <aoliva@redhat.com>
Cc: "David Korn" <dkorn@pixelpower.com>; <gcc-help@gcc.gnu.org>
Sent: Friday, March 02, 2001 11:35 AM
Subject: Re: help :: cant run due to libstdc++


> I checked that out.
> LD_LIBRARY_PATH of root was not set to /usr/local/lib. If I execute now,
the
> same open failed erorr occurs.  Then, I set it to /usr/local/lib, it
> executes fine.
>
> But in my login  LD_LIBRARY_PATH  is set to /usr/local/lib already. If I
> execute my "hello" program it says open failed error.
>
> Still cant trace out.
>
> ----- Original Message -----
> From: "Alexandre Oliva" <aoliva@redhat.com>
> To: "Umapathy S" <nsupathy@myrealbox.com>
> Cc: "David Korn" <dkorn@pixelpower.com>; <gcc-help@gcc.gnu.org>
> Sent: Friday, March 02, 2001 4:46 AM
> Subject: Re: help :: cant run due to libstdc++
>
>
> > On Mar  2, 2001, "Umapathy S" <nsupathy@myrealbox.com> wrote:
> >
> > > I logined as root and try executing the same file, it executed.
> >
> > See whether root has LD_LIBRARY_PATH set or something like that.  I'm
> > pretty sure this is not a permission problem.
> >
> > --
> > Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
> > Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
> > CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
> > Free Software Evangelist    *Please* write to mailing lists, not to me
> >
>
>

help :: cant run due to libstdc++

[Umapathy S]

hi all
    A trivial error but dont know how to solve it
    I am trying to use gcc/g++ to compile a helloworld C++ program
    Here is the program

    Problem :

    //hello.C prints "hello, world" to stdout
    #include <iostream>

    using namespace std;

    int main(int argc, char *argv[])    {

        char str[]="hello, world";
        cout << str << endl;
        return 0;
    } //end of main

    The make file for the program is as follows
    #makefile to compile hello.C program
    CC=/usr/local/bin/g++

    all:hello.o
        ${CC} -ohello hello.o

    hello.o:hello.C
        ${CC} -c hello.C

    clean:
        rm -f hello.o hello

    The compilation part is done well, but when I try to execute hello the
following error occurs

    ld.so.1:hello: fatal: libstdc++.so.2.10.0: open failed: No such file or
directory
    Killed

    Platform :
        using gnu gcc  2.95.2 19991024 (release) on Solaris  2.6

    Reasons :
        I checked out libstdc++.so.2.10.0, it is in
/usr/local/lib/libstdc++.so.2.10.0
        I am not using linking options like -nodefaultlibs and -nostdlib

    Thanks in advance for any help

cheers
Umapathy S

Re: help :: cant run due to libstdc++

[Anthony Lee]

I am not sure about Solaris but I would have thought there must be
some environment variable pointing to where your lib is. 
You could try 

env | more

to see if anything looks like what you are looking for and see
if it is set correctly.

Umapathy S wrote:
> 
> hi all
>     A trivial error but dont know how to solve it
>     I am trying to use gcc/g++ to compile a helloworld C++ program
>     Here is the program
> 
>     Problem :
> 
>     //hello.C prints "hello, world" to stdout
>     #include <iostream>
> 
>     using namespace std;
> 
>     int main(int argc, char *argv[])    {
> 
>         char str[]="hello, world";
>         cout << str << endl;
>         return 0;
>     } //end of main
> 
>     The make file for the program is as follows
>     #makefile to compile hello.C program
>     CC=/usr/local/bin/g++
> 
>     all:hello.o
>         ${CC} -ohello hello.o
> 
>     hello.o:hello.C
>         ${CC} -c hello.C
> 
>     clean:
>         rm -f hello.o hello
> 
>     The compilation part is done well, but when I try to execute hello the
> following error occurs
> 
>     ld.so.1:hello: fatal: libstdc++.so.2.10.0: open failed: No such file or
> directory
>     Killed
> 
>     Platform :
>         using gnu gcc  2.95.2 19991024 (release) on Solaris  2.6
> 
>     Reasons :
>         I checked out libstdc++.so.2.10.0, it is in
> /usr/local/lib/libstdc++.so.2.10.0
>         I am not using linking options like -nodefaultlibs and -nostdlib
> 
>     Thanks in advance for any help
> 
> cheers
> Umapathy S

-- 
Anthony Lee	
Energex                                            
150 Charlotte Street                 ..--  __o 
Brisbane                        ....--   _ \<,_               
Qld 4000                       ____     (_)/ (_)                         
Australia
voice:+61 7 3407 4541
fax:  +61 7 3407 4607
email: AL012@energex.com.au


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intended recipient, please notify ENERGEX immediately and destroy any copies of the original 
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Re: help :: cant run due to libstdc++

[Umapathy S]

thanks for the info Lee
But I thought that g++ will take care of C++ library linker options
I tried to link forcibly as
    /usr/local/bin/g++ -ohello hello.o -l/usr/local/lib/libstdc++.a.2.10.0

I got the list of errors as follows
    ld: fatal: library -l/usr/local/lib/libstdc++.a.2.10.0: not found
(!!!!but it is there and not corrupted)
    ld: fatal: File processing errors. No output written to hello
    collect2: ld returned 1 exit status

thanks for any ideas
cheers
Umapathy S


----- Original Message -----
From: "Anthony Lee" <al012@energex.com.au>
To: "Umapathy S" <nsupathy@myrealbox.com>
Cc: <gcc-help@gcc.gnu.org>
Sent: Thursday, March 01, 2001 7:28 AM
Subject: Re: help :: cant run due to libstdc++


> I am not sure about Solaris but I would have thought there must be
> some environment variable pointing to where your lib is.
> You could try
>
> env | more
>
> to see if anything looks like what you are looking for and see
> if it is set correctly.
>
> Umapathy S wrote:
> >
> > hi all
> >     A trivial error but dont know how to solve it
> >     I am trying to use gcc/g++ to compile a helloworld C++ program
> >     Here is the program
> >
> >     Problem :
> >
> >     //hello.C prints "hello, world" to stdout
> >     #include <iostream>
> >
> >     using namespace std;
> >
> >     int main(int argc, char *argv[])    {
> >
> >         char str[]="hello, world";
> >         cout << str << endl;
> >         return 0;
> >     } //end of main
> >
> >     The make file for the program is as follows
> >     #makefile to compile hello.C program
> >     CC=/usr/local/bin/g++
> >
> >     all:hello.o
> >         ${CC} -ohello hello.o
> >
> >     hello.o:hello.C
> >         ${CC} -c hello.C
> >
> >     clean:
> >         rm -f hello.o hello
> >
> >     The compilation part is done well, but when I try to execute hello
the
> > following error occurs
> >
> >     ld.so.1:hello: fatal: libstdc++.so.2.10.0: open failed: No such file
or
> > directory
> >     Killed
> >
> >     Platform :
> >         using gnu gcc  2.95.2 19991024 (release) on Solaris  2.6
> >
> >     Reasons :
> >         I checked out libstdc++.so.2.10.0, it is in
> > /usr/local/lib/libstdc++.so.2.10.0
> >         I am not using linking options like -nodefaultlibs and -nostdlib
> >
> >     Thanks in advance for any help
> >
> > cheers
> > Umapathy S
>
> --
> Anthony Lee
> Energex
> 150 Charlotte Street                 ..--  __o
> Brisbane                        ....--   _ \<,_
> Qld 4000                       ____     (_)/ (_)
> Australia
> voice:+61 7 3407 4541
> fax:  +61 7 3407 4607
> email: AL012@energex.com.au
>
>
> --------------------------------------------------------------------------
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> This email message (and any accompanying file attachments) may contain
confidential or
> privileged information and is intended for the sole use of the addressee
named above. If you
> are not the intended recipient, or the person responsible for delivering
this message to the
> intended recipient, please notify ENERGEX immediately and destroy any
copies of the original
> message.
>
> Any unauthorised review, use, alteration, disclosure or distribution of
this email (including any
> attachments) by an unintended recipient is prohibited.
>
> ENERGEX accepts no responsibility for the content of any email which is
sent by an employee
> which is of a personal nature.
>