I am trying to build tora-1.3.21 on FC4
and I think the error I'm getting is FC4 specific:

checking build system type... config.sub: missing argument
Try `config.sub --help' for more information.
configure: error: /bin/sh ./config.sub failed
build.sh: line 2: --with-qt-dir=/usr/lib/qt-3.3: No such file or directory
build.sh: line 3: --with-oci-version=oci8: command not found
build.sh: line 4: --with-instant-client: command not found

I can't get anthing from config.sub --help

[root@bilbo ~]# config.sub --help
-bash: config.sub: command not found

That's why I think it's FC4 specific.

Any leads?
<sigh>

Just a follow up: it wasn't FC4

I did find the cause of:
Try `config.sub --help' for more information.
configure: error: /bin/sh ./config.sub failed
:Z
I had copy pasted from a previous install (yes, I keep notes) and there was a errant <space><cr><lf> or something in my script.

I opened it up in gedit and made sure there were no spaces after the \
I got much further this time with:

./configure --with-qt-dir=/usr/lib/qt-3.3 \
--with-oci-version=oci8 \
--with-kde=/usr/lib/kde3 \
--with-instant-client=/home/oinstall/oracle


Anyhow. New day.
I almost have TOra installed

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My humblest apologies for blaming FC per se.
It is computers in general that take things too bleeding literally! Bwahaha!

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Hope you this helps if you found
configure: error: /bin/sh ./config.sub failed