Issues with two versions of libstdC++.so Post: 302889233

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Top Forums Programming Issues with two versions of libstdC++.so Post 302889233 by Praveen_218 on Wednesday 19th of February 2014 01:26:42 PM

02-19-2014

Registered User

Quote:

Originally Posted by fpmurphy

Have you tired putting libstdc++.so.5 in a different place and using LD_LIBRARY_PATH to point to that location?

Yes already tried. Even I created a soft link inside my present working directory to point to libstdc++.so.5; didn't work.

Did like this:

Code:

$ ln -s /usr/lib/libstdc++.so.5 libstdc++.so
$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:.

I also did

Code:

 $ strace g++ simpleTrialProgram.cpp -o someExe

Just to understand how g++ is finding libraries by default and found it looks to certain number of pre-defined directories one by one on a decreasing priority (including reaching a level to look inside /usr/lib folder).

But why g++ is choosing version 6 when the same /usr/lib folder has version 5 where as gcc chooses version 5 when the same directory has higher version 6 available to it.

There must be somewhere the information g++ is driving out to select a particular version over other, when multiple available.

Praveen_218

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ocamlmktop

OCAMLMKTOP(1)						      General Commands Manual						     OCAMLMKTOP(1)

NAME

       ocamlmktop - Building custom toplevel systems

SYNOPSIS

       ocamlmktop [ -v|-version|-vnum ] [ -cclib libname ] [ -ccopt option ] [ -custom [ -o exec-file ] [ -I lib-dir ] filename ...

DESCRIPTION

       The ocamlmktop(1) command builds OCaml toplevels that contain user code preloaded at start-up.  The ocamlmktop(1) command takes as argument
       a set of x.cmo and x.cma files, and links them with the object files that implement the OCaml toplevel.	If the -custom flag  is  given,  C
       object files and libraries (.o and .a files) can also be given on the command line and are linked in the resulting toplevel.

OPTIONS

       The following command-line options are recognized by ocamlmktop(1).

       -v     Print the version string of the compiler and exit.

       -vnumor-version
	      Print the version number of the compiler in short form and exit.

       -cclib -llibname
	      Pass the -llibname option to the C linker when linking in ``custom runtime'' mode (see the corresponding option for ocamlc(1).

       -ccopt Pass  the  given	option	to  the  C  compiler and linker, when linking in ``custom runtime'' mode. See the corresponding option for
	      ocamlc(1).

       -custom
	      Link in ``custom runtime'' mode. See the corresponding option for ocamlc(1).

       -I directory
	      Add the given directory to the list of directories searched for compiled interface files (.cmo and .cma).

       -o exec-file
	      Specify the name of the toplevel file produced by the linker.  The default is is a.out.

SEE ALSO

       ocamlc(1).

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