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AR# 20154

6.3i Install - Red Hat Linux Enterprise 3.0 error: "$XILINX/bin/lin/libgcc_s.so.1: version 'GCC_3.3' not found"


Keywords: ISE, 6.1i, 6.2i, redhat, ee, GCC, libgcc

The installation of ISE went as expected, but when I run any of the implementation tools, the following error occurs:

"<executeable> $XILINX/bin/lin/libgcc_s.so.1: version `GCC_3.3' not found (required by /usr/lib/libstdc++.so.5)"


To work around this issue, try to change where the code finds libgcc to a path with a newer version. After running the GREP command above, you might observe that the GCC_3.3 is present in the path, except it is not the first library listed. You can fix this by adding a "/lib" to the LD_LIBRARY_PATH of ".cshrc".


The previous LD_LIBRARY_PATH looks like this:

After making the change:

Code compiled with GCC versions 3 and higher are linked to a runtime library, libgcc. Inside this library, they reveal a symbol to indicate the compatibility of the code within. Newer releases of the library contain a list of these symbols as seen in the following output:

$ strings /lib/libgcc_s.so.1 |fgrep GCC_

Consequently, newer compilers have libraries that should work with code compiled against older GCC versions. If you try to run code that was compiled on a newer revision of libgcc on a system that uses a lower revision of libgcc, the error occurs.

To summarize, the ISE executable run expects a newer version of libgcc than the one in $XILINX/bin/lin/libgcc_s.so.1.
AR# 20154
Date 07/05/2006
Status Archive
Type General Article
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