[brlcad-tracker] [ brlcad-Bugs-2312141 ] configure error on 64 bit systems

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Bugs item #2312141, was opened at 2008-11-18 18:18
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Category: Compilation
Group: crash or data loss
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Ronald  Charlton (charltrr53)
Assigned to: Nobody/Anonymous (nobody)
Summary: configure error on 64 bit systems

Initial Comment:
The configure script does not account for the --disable-64bit-build flag when building on a 64 bit system for a 32 bit target.  If the 64 bit system has both a 32 bit gcc and a 64 bit gcc installed, and a 32 bit build is selected(not easy btw) the /lib64 path will always be included in the LD_FLAGS macro for the makefiles.  This causes the 32 bit link to fial because the linker is trying to use the 64 bit libraries, which are in a format that is does not recognize. As a result, the 32 bit build fails.

This was attempted on a centos 5 installation that had been upgraded to gcc 4.2.  The upgraded installation included both a 32 bit and 64 bit compiler capability.

The only work around I could find was to edit configure and remove the references to the /lib64 directory.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=640802&aid=2312141&group_id=105292