Fail to build with GCC 7

[marillat]

Here I try to build the latest git snapshot 0ba6e25

Build for debian unstable amd64 with tesseract 4.00~git2174-3b62badd-5

cd "/src/vobsub2srt-1.0~pre7+20171219/build/src" && /usr/lib/ccache/c++  -DINSTALL_PREFIX=\"/usr\" -I"/src/vobsub2srt-1.0~pre7+20171219/mplayer"  -ansi -pedantic -Wall -Wextra -Wno-long-long   -o CMakeFiles/vobsub2srt.dir/vobsub2srt.c++.o -c "/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++"
In file included from /usr/include/c++/7/cinttypes:35:0,
                 from /usr/include/tesseract/host.h:30,
                 from /usr/include/tesseract/serialis.h:26,
                 from /usr/include/tesseract/baseapi.h:32,
                 from /src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:27:
/usr/include/c++/7/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support \
  ^~~~~
In file included from /usr/include/tesseract/apitypes.h:23:0,
                 from /usr/include/tesseract/baseapi.h:27,
                 from /src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:27:
/usr/include/tesseract/publictypes.h:33:1: error: 'constexpr' does not name a type
 constexpr int kPointsPerInch = 72;
 ^~~~~~~~~
/usr/include/tesseract/publictypes.h:33:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
/usr/include/tesseract/publictypes.h:38:1: error: 'constexpr' does not name a type
 constexpr int kMinCredibleResolution = 70;
 ^~~~~~~~~
/usr/include/tesseract/publictypes.h:38:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
/usr/include/tesseract/publictypes.h:40:1: error: 'constexpr' does not name a type
 constexpr int kMaxCredibleResolution = 2400;
 ^~~~~~~~~
/usr/include/tesseract/publictypes.h:40:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
/usr/include/tesseract/publictypes.h:45:1: error: 'constexpr' does not name a type
 constexpr int kResolutionEstimationFactor = 10;
 ^~~~~~~~~
/usr/include/tesseract/publictypes.h:45:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11
In file included from /usr/include/tesseract/ltrresultiterator.h:26:0,
                 from /usr/include/tesseract/resultiterator.h:26,
                 from /usr/include/tesseract/baseapi.h:31,
                 from /src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:27:
/usr/include/tesseract/unichar.h:164:10: error: 'string' does not name a type; did you mean 'stdin'?
   static string UTF32ToUTF8(const std::vector<char32>& str32);
          ^~~~~~
          stdin
/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++: In function 'int main(int, char**)':
/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:218:3: error: 'TessBaseAPI' has not been declared
   TessBaseAPI::SimpleInit(tess_path, tess_lang, false); // TODO params
   ^~~~~~~~~~~
/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:220:5: error: 'TessBaseAPI' has not been declared
     TessBaseAPI::SetVariable("tessedit_char_blacklist", blacklist.c_str());
     ^~~~~~~~~~~
/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:275:20: error: 'TessBaseAPI' has not been declared
       char *text = TessBaseAPI::TesseractRect(image, 1, stride, 0, 0, width, height);
                    ^~~~~~~~~~~
/src/vobsub2srt-1.0~pre7+20171219/src/vobsub2srt.c++:314:3: error: 'TessBaseAPI' has not been declared
   TessBaseAPI::End();
   ^~~~~~~~~~~
src/CMakeFiles/vobsub2srt.dir/build.make:65: recipe for target 'src/CMakeFiles/vobsub2srt.dir/vobsub2srt.c++.o' failed
make[2]: *** [src/CMakeFiles/vobsub2srt.dir/vobsub2srt.c++.o] Error 1

[Seegras]

Same as #67 ?

[Seegras]

I just managed to build on debian unstable, with;
git checkout autotools
./bootstrap
./configure CXXFLAGS=-std=gnu++11
make

[matiasw]

I just managed to build on debian unstable, with;
git checkout autotools
./bootstrap
./configure CXXFLAGS=-std=gnu++11
make

I did this on WSL Kali (Debian-like), and got:

/usr/bin/ld: src/vobsub2srt-vobsub2srt.o: in function main': vobsub2srt.c++:(.text+0xa2e): undefined reference to tesseract::TessBaseAPI::TessBaseAPI()'
/usr/bin/ld: vobsub2srt.c++:(.text+0xab3): undefined reference to tesseract::TessBaseAPI::SetVariable(char const*, char const*)' /usr/bin/ld: vobsub2srt.c++:(.text+0xe32): undefined reference to tesseract::TessBaseAPI::TesseractRect(unsigned char const*, int, int, int, int, int, int)'
/usr/bin/ld: vobsub2srt.c++:(.text+0x11db): undefined reference to tesseract::TessBaseAPI::End()' /usr/bin/ld: vobsub2srt.c++:(.text+0x1280): undefined reference to tesseract::TessBaseAPI::~TessBaseAPI()'
/usr/bin/ld: vobsub2srt.c++:(.text+0x13f1): undefined reference to tesseract::TessBaseAPI::~TessBaseAPI()' /usr/bin/ld: src/vobsub2srt-vobsub2srt.o: in function tesseract::TessBaseAPI::Init(char const*, char const*)':
vobsub2srt.c++:(.text.ZN9tesseract11TessBaseAPI4InitEPKcS2[ZN9tesseract11TessBaseAPI4InitEPKcS2]+0x3f): undefined reference to `tesseract::TessBaseAPI::Init(char const*, char const*, tesseract::OcrEngineMode, char**, int, GenericVector const*, GenericVector const*, bool)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:476: vobsub2srt] Error 1