Cannot build from source after PR #1116

[nimroha]

Environment

• Tesseract Version: 4.00 (cloned now from master)
• Leptonica Version: 1.7.8
• Commit Number: 7569c89
• Platform: Linux vagrant-ubuntu-trusty-64 3.13.0-125-generic Segmentation fault: tesseract -c hocr_font_info=T hocr  #174-Ubuntu SMP Mon Jul 10 18:51:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Current Behavior:

Cannot build from source from branch master

Expected Behavior:

Should be able to build

Steps to reconstruct:

Run:
git clone --depth 1 https://github.com/tesseract-ocr/tesseract.git
cd /tesseract
./autogen.sh
./configure --enable-debug
LDFLAGS="-L/usr/local/lib" CFLAGS="-I/usr/local/include"
make
make install
make training

Output:
/bin/bash ../libtool --tag=CXX --mode=link g++ -g -O2 -std=c++11 -L/usr/local/lib -llept -o unicharset_extractor unicharset_extractor.o libtesseract_tessopt.la ../api/libtesseract.la -lpthread
libtool: link: g++ -g -O2 -std=c++11 -o .libs/unicharset_extractor unicharset_extractor.o -L/usr/local/lib /usr/local/lib/liblept.so ./.libs/libtesseract_tessopt.a ../api/.libs/libtesseract.so -lpthread -fopenmp
unicharset_extractor.o: In function tesseract::Main(int, char**)': /tesseract/training/unicharset_extractor.cpp:66: undefined reference to tesseract::ReadFile(std::string const&, bool ()(STRING const&, GenericVector))'
unicharset_extractor.o: In function AddStringsToUnicharset': /tesseract/training/unicharset_extractor.cpp:48: undefined reference to tesseract::NormalizeCleanAndSegmentUTF8(tesseract::UnicodeNormMode, tesseract::OCRNorm, tesseract::GraphemeNormMode, bool, char const*, std::vector<std::string, std::allocatorstd::string >*)'
/tesseract/training/unicharset_extractor.cpp:53: undefined reference to tesseract::IsWhitespace(int)' unicharset_extractor.o: In function tesseract::Main(int, char**)':
/tesseract/training/unicharset_extractor.cpp:81: undefined reference to tesseract::SetupBasicProperties(bool, bool, UNICHARSET*)' unicharset_extractor.o: In function main':
/tesseract/training/unicharset_extractor.cpp:96: undefined reference to tesseract::ParseCommandLineFlags(char const*, int*, char***, bool)' collect2: error: ld returned 1 exit status make[1]: *** [unicharset_extractor] Error 1 make[1]: Leaving directory /tesseract/training'
make: *** [training] Error 2

Suggested Fix:

The rule to make unichar_extractor was changed in the last pull request closed (#1116)

[Shreeshrii]

It was an accidental overwrite. I have made a PR to fix it. #1118

[nimroha]

Fixed in PR #1118