Thread: readline library not found

I am attempting to build postgresql from source because there is a clear
need on our system to place the directories in the default
location, /usr/local/pgsql, while my distro places them in /var/lib.
Strictly a matter of disc array management.

The config is straightforward:

./configure \
--without-docdir \
--with-libs=/usr/local/lib
--with-includes=/usr/local/include/readline \
--with-pgport=5432 \
--with-openssl

This results in one error: 'readline library not found', even 'though I
specified the directories for readlines libraries and includes.

In /usr/local/lib are:

libreadline.a
libreadline.so -> libreadline.so.5
libreadline.so.5 -> libreadline.so.5.2
libreadline.so.5.2

In 'Beginning PHP and PostgreSQL 8' there is mention of a possible
problem with this, which was why I specified the directories.

If I configure --without-readline, things are quite 'happy'.

Guess this is so obvious i can't see the forest for the trees.

Anyone able to point me in a better direction?

GJW

You need the readline-dev package, not just readline... Don't worry, I did
the same thing once :)


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"G. J. Walsh" <gjwalsh@dscdirectionalservices.com> writes:
> ./configure \
> --without-docdir \
> --with-libs=/usr/local/lib
> --with-includes=/usr/local/include/readline \
> --with-pgport=5432 \
> --with-openssl

> This results in one error: 'readline library not found', even 'though I
> specified the directories for readlines libraries and includes.

> In /usr/local/lib are:

> libreadline.a
> libreadline.so -> libreadline.so.5
> libreadline.so.5 -> libreadline.so.5.2
> libreadline.so.5.2

Looks like it should work.  Look into config.log to see exactly what
errors the linker reported when doing the trial link.  (This will be
some ways above the end of the file, because configure spits out
values of all its internal variables before failing.)

            regards, tom lane

I thought i had this fixed when I added libreadline5-devel. That worked
for the other problem with zlib.

So, following Tom Lanes' suggestion, I read through the 1300+ lines of
the config.log and found this:

configure:6651 checking for -lreadline
/usr/lib/gcc/i586-mandriva-linux-gnu/4.2.2/../../../libreadline.so:
undefined reference to 'PC' 'tgetflag''tgetext' etc etc ...

So it does not like Mandriva's package.

I downloaded readline source from cwru.edu and installed it. What that
did was add libreadline to /usr/local/lib.

But the postgresql configure shows no change, regardless of which
library directory I specify (or none, for that matter).

I could remove the mandriva package, but that would involve breaking
relationships with some 40 packages. Seems a bit of overkill.

Probabaly it is best to do without readline. Seventeen hours on this one
situation is verging on the insane.

If ONLY Mandriva used /usr/local/pgsql rather than /var/lib/pgsql, I
would have been in business.

There are hundreds of google references to this so there has to be some
underlying problem which I am not aware of and therefore cannot really
address.

Thanks for attempting to address my frustration.That is appreciated,
really!

George

"G. J. Walsh" <gjwalsh@dscdirectionalservices.com> writes:
> So, following Tom Lanes' suggestion, I read through the 1300+ lines of
> the config.log and found this:

> configure:6651 checking for -lreadline
> /usr/lib/gcc/i586-mandriva-linux-gnu/4.2.2/../../../libreadline.so:
> undefined reference to 'PC' 'tgetflag''tgetext' etc etc ...

This is expected, actually.  readline normally depends on another
library or two, typically termcap or ncurses.  If you look further down
you should see configure trying a few combinations of libraries.
On a Linux system I'd expect -lreadline -ltermcap to be the right
magic incantation; maybe you are missing termcap, or maybe Mandriva
uses some weird nonstandard support library.  Try looking into the
documentation for the readline package to see if you can find out what.

            regards, tom lane

Mandriva (my distro) updated PostgreSQL last night on Cooker. I spent
some time last night reshuffling directories in may arrays so as to
locate postgresql's backup and data directories on their own drive
surface. That done, postgresql installed beautifully, so my attempt at
work arounds is no longer necessary and I can get on with creating the
new tables and loading them.

I learned a lot of the inner mechanics of things with the pointers I
received from both Phil and Tom - for which I am grateful - but I have
to get my priorities straight. I have a lot yet to do to have the site
fully functional with the first of the coming year.

George