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Problem Upgrading 2.95.3 to 3.Avoid bug in 2.95.3PPC


To surpass a bug in gcc2.95.3-PowerPC-,
-that generates a LyX faulty binary-
I installed gcc3.0.1 under: 
/opt/experimental/;this rpm includes
all the GNU Compiler Collection.Also
I uninstalled gcc,gpp etc. which were
installed.
When compiling LyX1.3.2 the configure
script does not recognise Qt and tells:

...
checking for Qt library name...failed
configure:error:Cannot compile a simple
Qt executable.Check you have the right
$QTDIR!

I uninstalled gcc3.0.1 and installed
the compilers that were there (That
was the ONLY change)and the configure 
script no more warns about it and 
recognises Qt and goes on.
Because I need to compile with a non
2.95.3 gcc version,how do I surpass
this?

NOTE: Obviously,I added
/opt/experimental/bin to my PATH.I 
also added /opt/experimental/lib to 
ld.so.conf and run ldconfig so what
is the problem here ?There is some-
thing I should have done when I 
installed gcc3.0.1 that I didn´t but
I don´t realise what.
I would appreciate a suggestion.

          Thank you.

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