Idiots Guide, all questions answered here

[Mr Guy]

These steps should work for the following systems:
RedHat 7.1, 7.2
Mandrake 8.1

confirmation on others?

1) Get gcc3

a) www.rpmfind.net
Retrieve RPMS:
ftp://ftp.rpmfind.net
Navigate to /linux/C/redhat/7.2/en/os/i386/RedHat/RPMS
b) get
gcc3-3.0.1-3.i386.rpm
libstdc++3-3.0.1-3.i386.rpm
gcc3-c++-3.0.1-3.i386.rpm
libstdc++3-devel-3.0.1-3.i386.rpm
libgcc-3.0.1-3.i386.rpm
c) Install all with rpm -i --force
d) Export new locations for gcc3
This is the part that is causing most people to bomb out.
export CC=gcc3
export CXX=g++3

Potential Problems this step
Installing gcc3
1) I have RedHat 7.1 and I have troubles installing gcc3!
Fix See Tristan469's post below
gcc3 works, but still getting errors!
1) You installed gcc3, but still get 3.0 or greater required
Fix:
Follow step (1d) to update your gcc pointers.
2)I did that and it STILL didn't work
Follow step (1d) but update cpp or c++ pointers

3)Must...get...gun...for...errors! Still....Broken!
Fix
Try:


cd /usr/bin
mv gcc gcc.old
mv g++ g++.old
ln --symbolic gcc3 gcc
ln --symbolic g++3 g++

This way does work, but according to Zaphod may result in bad juju with KDE compiles later, and so is no longer recommended.


2) Get QT (qt-x11-2.3.2.tar.gz )

a) wget ftp.trolltech.com/qt/source/qt-x11-2.3.2.tar.gz
b) tar -xzvf qt-x11-2.3.2.tar.gz
c) Follow instructions in INSTALL (for QT)

I) mv qt-2.3.2 /usr/local/qt
II) Follow pathing instructions in INSTALL for your .profile, .login
In .profile (if your shell is bash, ksh, zsh or sh), add the following lines:


QTDIR=/usr/local/qt
PATH=$QTDIR/bin:$PATH
MANPATH=$QTDIR/doc/man:$MANPATH
LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH

export QTDIR PATH MANPATH LD_LIBRARY_PATH


OR In .login (in case your shell is csh or tcsh), add the following lines:


setenv QTDIR /usr/local/qt
setenv PATH $QTDIR/bin:$PATH
setenv MANPATH $QTDIR/doc/man:$MANPATH
setenv LD_LIBRARY_PATH $QTDIR/lib:$LD_LIBRARY_PATH

*NOTE* Mandrake users may need to add the line source .profile to their .bashrc file.

III) source .profile
IV) cd /usr/local/qt/
V) ./configure -thread
VI) make

Potential Problems this step
1) Slowness. Deal with it.
2) Failed make, post with actual errors
3) Unable to download QT from trolltech.com Be patient, everyone wants it right now
4) undefined symbol: _ZN2Qt9lightGreyE
Cause: wrong QT library being used
Fix:
(using default instructions above, /usr/local/qt is the directory you installed QT 2.3.2 into)


cd /usr/local/qt
cp cp libqt-m* /usr/lib




3) Get libEQ.a
a) wget ftp://smurfette.trifocus.net/pub/libeq/i386/linux/libEQ.a
b) md5sum libEQ.a
check against top of ShowEq Message Board http://seq.sourceforge.net/index.php?s=
c) mv /usr/lib/libEQ.a /usr/lib/libEQ.a.old
c) cp libEQ.a /usr/lib

Potential Problems this step:
1) At time of writing, krisp is has not updated his libEQ.a, causing wrong md5sum
2) Both libEQ.a may exist on system. Delete old libEQ.a, keeping only the md5sum that matches http://seq.sourceforge.net/index.php?s=


*Note*

Finished the compile of QT in roughly 3 hours on a 266.


Appendix A
I hate version 4! I want to go home!
The are only two steps 1) Restore libEQ.a
mv /usr/lib/libEQ.a /usr/lib/libEQ.a.new
mv /usr/lib/libEQ.a.old /usr/libEQ.a
2) Go to your OLD ShowEQ directory
cd /showeq/linux
3) Reinstall that one
./configure && make && make install

[Tristan469]

Nice work.. I'm running Redhat 7.1 and had very little problem... I had to update a few other packages before I could update the compiler tho.. They were:

binutils-2.11.92.0.12-4.i386.rpm
glibc-2.2.4-20.i386.rpm
glibc-common-2.2.4-20.i386.rpm
glibc-devel-2.2.4-20.i386.rpm

do a rpm -Uvh glibc-2.2.4-20.i386.rpm glibc-common-2.2.4-20.i386.rpm glibc-devel-2.2.4-20.i386.rpm

and then a rpm -Uvh binutils-2.11.92.0.12-4.i386.rpm

and then you can install the other rpms listed by Mr Guy.

Good luck!

[Mr Guy]

Added in a few more problem fixes

[Zaphod]

I would HIGHLY recommend against changing the g++ and gcc symbolic links. It can be a BAD thing. The proper thing to do is to get the things you compile to use the correct compiler.

You are much better off applying the patch to qt-2.3.2 and setting the environment variables in the RedHat 7.2 guide I posted (http://seq.sourceforge.net/showthre...?s=&threadid=70 ). That way you don't have problems later.

Just figured I'd give people fair warning before they complain that they have trouble compiling KDE programs later.

Enjoy,
Zaphod (dohpaZ)

[Mr Guy]

Alright, I'll change to suggest that instead, with the symbolic links as a failsafe

[ettaj]

The above post says to use QT (qt-x11-2.3.2.tar.gz ). Is there a problem using qt-x11-3.0.1? As a general question, should I be getting the versions specified in the post or is it ok to get the latest version of a package if available?

Thanks!

[Mr Guy]

Right now there are some reported issues with 3.0.1 that are being ironed out. Your life will be easier if you go with 2.3.2

[Chuin]

This PC is only used by me and only for SEQ. As a result I just log in as root, I know it's not the best thing to do, but I know nothing about the .profile. Where would this file be if I log in as root?

Here is a sample of the errors I am receiving and I think it has to do with my environment...:)

(standard input):5519: Warning: Unrecognized .section attribute: want a,w,x
(standard input):5519: Warning: Unrecognized .section attribute: want a,w,x
(standard input):5519: Error: Rest of line ignored. First ignored character is `,'.

I get this trio about 40-50 times with the 5519 reference the only part changing... Any ideas...?

I am running RH7.1 and have applied all the libraries mentioned in this thread except for Tristan469's suggestions.. Should I try these too?


EDIT: Used the Libraries Tristan469 suggested and followed the new guid in another thread... seems to be working now...:)

Chuin

[ettaj]

nt - had problems upgrading rpms, but they disappeared when I deleted, downloaded a second time, and did same installation procedure.

[jds_1962]

As a change for those who want to know.

I changed the file /etc/profile.d/qt.sh to read the following.
I am using RedHat 7.1

To set up my environment here is the changes or what the file should look like:

# Qt Initialization script (sh)
if [ -s "$QTDIR"] ; then
QTDIR="/usr/lib/qt-2.3.2"
LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
PATH=$QTDIR/bin:$PATH
fi
export QTDIR
export LD_LIBRARY_PATH
export PATH

Then you should be able to run showeq without a new script, since this is the script that sets the QT environment.

[Wishbringer]

Perhaps best way to get GCC3 is to get a tarball of GCC 3.0.3 from gcc.gnu.org.

Then you could make further optimizations for Gcc, eg. "-march=i686 -mcpu=i686" for a pure and faster P3 compiler :p

http://gcc.gnu.org/install/ <---- very nice description

[Eibwen]

i used search yet couldnt find this topic or answer.

Im on step 4 of the install guide where ...

cd /root/showeq/
export CC=gcc-3.0.1 ; export CXX=g++-3.0.1 ; export QTDIR=/usr/lib/qt-2.3.2
make -f Makefile.dist

this is where i get this error message

Adding libtool support............make[1]: *** [no-backup]
Error 127
make: *** [all] Error 2
[root@Computer showeq]#


what can i do to fix this step please.