Re: c++/1246: Cannot map library libstdc++.so.5

[whippet at smart dot net]

The following reply was made to PR c++/1246; it has been noted by GNATS.

From: whippet@smart.net
To: gdb-gnats@sources.redhat.com, chastain@sourceware.org,
        hnguyen@genome.broad.mit.edu, gdb-prs@sources.redhat.com
Cc:  
Subject: Re: c++/1246: Cannot map library libstdc++.so.5
Date: Tue, 25 Jan 2005 22:35:16 -0500

 http://sources.redhat.com/cgi-bin/gnatsweb.pl
 
 for what it is worth, I have experienced a similar problem as what was 
 described ... I believe the advice given was not quite complete.  The 
 problem is, that when GDB runs your program, it executes a shell, with 
 concomitant execution of start up files.   If my default shell is a 
 c-shell, this will execute my .cshrc ... if the .cshrc sets my 
 LD_LIBRARY_PATH, and this path is used to find the libstdc++.so.5 (often 
 the case on non-LINUX installations), then the value of the environment 
 variable that you see when you print the LD_LIBRARY_PATH inside GDB may not 
 be the value that GDB uses when it runs your program ... GDB checks this 
 inferior environments LD_LIBRARY_PATH which may not be the same as the 
 environment that GDB runs in itself.
 
 The advice that the system libs were installed incorrectly is suspect.  The 
 problem is, if your program relies on LD_LIBRARY_PATH or PATH to find 
 .so's, then the start up files for your default shell have to correctly set 
 these ... setting them manually and then using GDB will not work.  This is 
 a side affect to GDB invoking a shell to run your program in.
 
 eric