It looks like "#include <opencv2/core/core.hpp>" cause problem for
tesseract in case of c++11...

As quick fix it looks like putting "#include <tesseract/baseapi.h>" above
that line should be sufficient.

Maybe somebody with more time/experiences in c++11 should do deeper
investigation of this.

Zdenko


On Fri, Mar 14, 2014 at 7:11 PM, Giseli Ramos <[email protected]>wrote:

> I'm sending a test case that reproduce the problem.
>
>
> On Friday, March 14, 2014 2:43:42 PM UTC-3, Giseli Ramos wrote:
>>
>> Ok, I'm using Linux Mint 14 (cinnamon)
>> Tesseract from svn code revision 1054 (last fetched 13 Mar)
>> Leptonica 1.70
>> g++ 4.7.2
>> Qt 4.8.4 (Qt Creator 2.8.0)
>> Using OpenCV 2.4.8, c++11 and boost lib.
>>
>> At the moment, I can't paste the project here. Later, I will try to
>> create a simple test case, but I suspect that it will compile because is
>> simple...
>>
>> The redefinition problem with templates could be a problem with using the
>> boost and c++11?
>>
>> On Friday, March 14, 2014 9:31:19 AM UTC-3, zdenop wrote:
>>>
>>> You will need to provide more information (e.g. tesseract version,
>>> compiler and its version, basic OS info) and maybe full test case (you was
>>> able to install/compile tesseract on your system, so there must be problem
>>> in your project why you are not able to use tesseract library). If your
>>> project is online available, please send link to it.
>>>
>>> Zdenko
>>>
>>>
>>> On Fri, Mar 14, 2014 at 12:22 PM, Giseli Ramos <[email protected]>wrote:
>>>
>>>> I'm trying to compile my project in Qt that uses tesseract and opencv.
>>>> In the .pro file:
>>>>
>>>> INCLUDEPATH += /usr/local/include/tesseract
>>>>
>>>> INCLUDEPATH += /usr/local/include/leptonica
>>>>
>>>> LIBS += -ltesseract -llept
>>>>
>>>>
>>>> The errors (I only past the first lines, because is a big list, all
>>>> from tesscallback.h):
>>>>
>>>> In file included from /usr/local/include/tesseract/baseapi.h:31:0,
>>>>
>>>> from src/utils/ocrReader.cpp:6:
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:278:29: error:
>>>> 'remove_reference' is not a template
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:278:29: error:
>>>> redefinition of 'struct remove_reference<T>'
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:277:29: error: previous
>>>> definition of 'struct remove_reference<T>'
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:296:12: error: expected
>>>> nested-name-specifier before 'remove_reference'
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:296:12: error: expected
>>>> ';' at end of member declaration
>>>>
>>>> /usr/local/include/tesseract/tesscallback.h:296:28: error: expected
>>>> unqualified-id before '<' token
>>>>
>>>> What is strange is that I have compiled with sucess with another simple
>>>> qt project to test tesseract funcionality, with the same config in the .pro
>>>> file. I don't know why this project in particular is having issues.
>>>>
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