Have a look at config.log and search for leptonica - you will see there the
error messages like this:
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/liblept.so: undefined
reference to `TIFFWriteScanline'
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/liblept.so: undefined
reference to `png_create_read_struct'
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/liblept.so: undefined
reference to `jpeg_destroy'

These are function in jpeg, tiff, png libraries. Can you check where are
installed these (shared) libraries?

--
Zdenko

On Sat, Sep 22, 2012 at 10:31 AM, Osman Masood <[email protected]> wrote:

> Yes, I tried running sudo ldconfig after installing leptonica, and set the
> LIBLEPT_HEADERSDIR environment variable. I also did 'make clean' in the
> Leptonica directory and installed it again. However, it's still giving me
> the same error. (I also tried using the latest version of Tesseract on
> trunk, 3.02, but same results.)
>
> What's weird is that I followed pretty much the same steps and installed
> Tesseract 3.02 successfully on OS X 10.8 (on a different machine).
>
> I actually had tried to install previous versions of Tesseract (3.00 and
> 3.01) and Leptonica (1.67) on Ubuntu before this - would that make a
> difference?
>
> My config.log is attached.
>
> Thanks for the help!
>
> On Saturday, September 22, 2012 12:27:17 AM UTC-7, zdenop wrote:
>
>> Hi,
>>
>> first of all: there is leptonica 1.69 and tesseract-ocr 3.02 in in Ubuntu
>> 12.4 LTS Precise Pangolin. So maybe you can rebuild packages from there.
>>
>> Next:
>>
>>    - Did you try to run "sudo ldconfig" [1] after installing leptonica?
>>    - If it does not work, than try to set LIBLEPT_HEADERSDIR (see
>>    ./configure --help) e.g. 
>> LIBLEPT_**HEADERSDIR=/usr/local/include/**leptonica
>>    ./configure
>>
>>
>> If it does not help, send config.log (from tesseract-ocr)
>>
>> [1] 
>> http://code.google.com/p/**tesseract-ocr/wiki/ReadMe#**Linux<http://code.google.com/p/tesseract-ocr/wiki/ReadMe#Linux>
>>
>> --
>> Zdenko
>>  On Fri, Sep 21, 2012 at 11:08 PM, Osman Masood <[email protected]>wrote:
>>
>>>  Hello everyone,
>>> I'm trying to install leptonica 1.69 and Tesseract v3.01 using the exact
>>> instructions found in their respective README files. Leptonica installs
>>> without a problem; however, whenever I try to run ./configure (even after
>>> running ./autogen.sh) it says: *configure: error: leptonica library
>>> missing*.
>>> These are the commands I'm using to install each, which are exactly in
>>> accordance with the README/INSTALL files:
>>>
>>> For leptonica 1.69:
>>> ./configure
>>> make
>>> sudo make install
>>>
>>> For Tesseract 3.01:
>>> ./autogen.sh
>>> ./configure
>>> * > configure: error: leptonica library missing*.
>>>
>>> I'm really confused, can one of you gurus help me out?
>>> Much thanks!
>>>
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>>>
>>
>>
>>

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