All, I have successfully built leptonica-1.74.0 source on Ubuntu 16.04 LTS, now I am trying to build tesseract-3.05.01 from source, but make fails with the following error -
/bin/bash ../libtool --tag=CXX --mode=link g++ -g -O2 -std=c++11 -o tesseract tesseract-tesseractmain.o libtesseract.la -lrt -lpthread libtool: link: g++ -g -O2 -std=c++11 -o .libs/tesseract tesseract-tesseractmain.o ./.libs/libtesseract.so -lrt -lpthread -Wl,-rpath -Wl,/home/sss/dev/c/tesseract-3.05.01/bin/lib /usr/bin/ld: tesseract-tesseractmain.o: undefined reference to symbol 'lept_free' //home/sss/dev/c/leptonica-1.74.0/bin/lib/liblept.so.5: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status I checked my Makefile.am as suggested by Arsen below, but I could not find tesseract_LDADD += -lrt Does any know how I can get around this error? On Monday, 1 May 2017 20:40:19 UTC+2, Arsen Hakobyan wrote: > > Hi All, > > I think this should be opened as an issue but according to the guidelines > I need to ask here before. > > Please help me with a suggestion resolving the mentioned issue and whether > I should open issue for this or not. > > I am getting the following compilation errors during building the sources > of 3.05 branch: > > arsen@arsen:~/tesseract$ git status > On branch 3.05 > Your branch is up-to-date with 'origin/3.05'. > > > *Last log:* > commit 555305f2be5e1ab27a3138f19d680f28d3922987 > Merge: ed31db6 b66ff1f > Author: zdenop <zde...@gmail.com <javascript:>> > Date: Sun Apr 23 17:40:01 2017 +0200 > > Merge pull request #835 from stweil/3.05 > > 3.05: Backports from master branch > > > *The Error:* > > make[2]: Entering directory '/home/arsen/tesseract/api' > /bin/bash ../libtool --tag=CXX --mode=link g++ -g -O2 -std=c++11 -o > tesseract tesseract-tesseractmain.o libtesseract.la -lrt -lpthread > libtool: link: g++ -g -O2 -std=c++11 -o .libs/tesseract > tesseract-tesseractmain.o ./.libs/libtesseract.so -lrt -lpthread > /usr/bin/ld: tesseract-tesseractmain.o: undefined reference to symbol > 'lept_free' > //usr/lib/x86_64-linux-gnu/liblept.so.5: error adding symbols: DSO missing > from command line > collect2: error: ld returned 1 exit status > Makefile:601: recipe for target 'tesseract' failed > make[2]: *** [tesseract] Error 1 > make[2]: Leaving directory '/home/arsen/tesseract/api' > Makefile:492: recipe for target 'all-recursive' failed > make[1]: *** [all-recursive] Error 1 > make[1]: Leaving directory '/home/arsen/tesseract' > Makefile:401: recipe for target 'all' failed > make: *** [all] Error 2 > > I am trying to build on Ubuntu 17.04: > > arsen@arsen:~/tesseract$ uname -a > Linux arsen 4.10.0-20-generic #22-Ubuntu SMP Thu Apr 20 09:22:42 UTC 2017 > x86_64 x86_64 x86_64 GNU/Linux > > Got the mentioned error. > I saw similar issues reported before and as one of them resolved by adding > missing library i did same and currently compilation is successful at my > side. > > Here is the patch : > > arsen@arsen:~/tesseract$ git diff > diff --git a/api/Makefile.am b/api/Makefile.am > index 531fb23..420bcbf 100644 > --- a/api/Makefile.am > +++ b/api/Makefile.am > @@ -86,5 +86,5 @@ tesseract_LDADD += -lws2_32 -ltiff > libtesseract_la_LDFLAGS += -no-undefined -Wl,--as-needed -lws2_32 > endif > if ADD_RT > -tesseract_LDADD += -lrt > +tesseract_LDADD += -lrt -llept > endif > > > After that I installed the Tesseract on my PC: > > arsen@arsen:~/tesseract$ tesseract -v > tesseract 3.05.00 > leptonica-1.74.1 > libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.1) : libpng 1.6.28 : > libtiff 4.0.7 : zlib 1.2.11 : libwebp 0.5.2 : libopenjp2 2.1.2 > > > > Regards, > Arsen > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to tesseract-ocr+unsubscr...@googlegroups.com. To post to this group, send email to tesseract-ocr@googlegroups.com. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/350be406-6b35-4866-b288-e739c72cf207%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
