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Old 04-01-2016, 06:34 PM   #1
lilzz
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libstdc++.so.5: cannot open shared object file:


error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory


I know where that libstdc++.so.5 is so I export LD_LIBRARY_PATh=/path to libstdc++.so.5,

but I still getting the same error.

Why? I know getting the LD_LIBRARY_PATH right to include that library should do it.
 
Old 04-01-2016, 06:52 PM   #2
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libstdc++.so.5 ????

that is old ,very old .


it is part of the compatibility gcc3.3 ( or 3.4 ) tools

and would be installed to the system default /usr/lib , or /usr/lib64

and THAT is in the system $PATH and $LD_LIBRARY_PATH by default



What operating system and What program is trying to use a very old version of libstc
 
Old 04-02-2016, 08:40 PM   #3
lilzz
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Quote:
Originally Posted by John VV View Post
libstdc++.so.5 ????

that is old ,very old .


it is part of the compatibility gcc3.3 ( or 3.4 ) tools

and would be installed to the system default /usr/lib , or /usr/lib64

and THAT is in the system $PATH and $LD_LIBRARY_PATH by default



What operating system and What program is trying to use a very old version of libstc
I am using Ubuntu 14.04 LTS. The OS should able to locate that libstdc++.so.5 right? I am running an open source development program, not a well known one. Why can't the OS locate it?
 
Old 04-02-2016, 09:05 PM   #4
John VV
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double check that there is inded a file
/usr/lib64/libstdc++.so.5

but if you need that old of a version
you should be using older gcc3.3 or 3.4 to build the program
and NOT the default version 4

you can have many different versions off gcc installed
right now i have
gcc-3.3
gcc 4.1
gcc 4.8

i am not using gcc5 right now

Last edited by John VV; 04-02-2016 at 09:10 PM.
 
Old 04-03-2016, 07:10 PM   #5
lilzz
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Quote:
Originally Posted by John VV View Post
double check that there is inded a file
/usr/lib64/libstdc++.so.5

but if you need that old of a version
you should be using older gcc3.3 or 3.4 to build the program
and NOT the default version 4

you can have many different versions off gcc installed
right now i have
gcc-3.3
gcc 4.1
gcc 4.8

i am not using gcc5 right now
libcstdc++ in not in my /usr/lib64 or /usr/x32 folder. That's why I manually pointed by export LD_LIBRARAY_PATH.
its prebuilt binary, I do not have the source. Can't change GCC.
 
Old 04-03-2016, 09:57 PM   #6
John VV
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well if you do not have that library installed
then HOW can you point gcc to it ?

it is part of the gcc3.3 compatibility deb

install the old compatibility gcc 3.3
and use that to build the old code that needs the old stdc 5

Quote:
Can't change GCC.
why not ?

Code:
export CC=gcc3.3
or set alternatives
or
explicitly call 3.3
Code:
g++-3.3 -o program program.cpp
 
Old 04-03-2016, 11:10 PM   #7
knudfl
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Quote:
Can't change GCC
These are the default gcc`s included with Ubuntu 14.04 :
gcc-4.4/g++-4.4, gcc-4.6/g++-4.6, gcc-4.7/g++-4.7, gcc-4.8/g++-4.8 ,,,
where "4.8" is the system compiler.

Switching compiler : $ export CC=gcc-4.4 CXX=g++4.4 && <other command>


But : You don't need any gcc packages to get libstdc++.so.5 :
http://packages.ubuntu.com/trusty/libstdc++5
.... Just install the package (may not be present in "the funny Package Manager") :
$ sudo apt-get install libstdc++5

Or install synaptic : $ sudo apt-get install synaptic
... to get a 'Package Manager' that has all available packages visible.


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