First of all: you should use tools you are familiar with. Your CMake configuration (CMakeLists.txt) does not look that way (you would use CMake to check required libraries, not PkgConfig, you would not hardcode curl for linking etc...),
Next. you should provide all the details to replicate the problem. What is missing (at least): 1. BasicExample.cpp 2. What OS you use (you put "WIN32 MACOSX_BUNDLE" to add_executable, what is quite surprising combination) 3. How did you install Tesseract? Some error outputs indicate manual static linked tesseract. Why a static build? It could be quite tricky to link static library with external dependencies Best regards, Zdenko so 17. 2. 2024 o 19:06 Raphael Stonehorse <raphael.stoneho...@gmail.com> napísal(a): > As described and discussed here: > https://stackoverflow.com/questions/78011753/how-to-correctly-define-cmakelists-txt-for-tesseract > I've been trying to use CMake for Tesseract compilation and building > > With this CMakeLists.txt : > > cmake_minimum_required(VERSION 3.5) > project(BasicExample) > > set(CMAKE_CXX_STANDARD 17) > > find_package(PkgConfig REQUIRED) > > pkg_check_modules(tesseract REQUIRED IMPORTED_TARGET tesseract) > pkg_check_modules(leptonica REQUIRED IMPORTED_TARGET lept) > pkg_check_moduleS(libcurl REQUIRED IMPORTED_TARGET libcurl) > > add_executable(${PROJECT_NAME} WIN32 MACOSX_BUNDLE BasicExample.cpp) > > target_link_libraries(BasicExample PUBLIC > PkgConfig::leptonica > PkgConfig::tesseract > -lcurl > ) > > I get these errors: > > raphy@raohy:~/tesseract/Examples$ cmake -B builddir > -- The C compiler identification is GNU 12.3.0 > -- The CXX compiler identification is GNU 13.2.0 > -- Detecting C compiler ABI info > -- Detecting C compiler ABI info - done > -- Check for working C compiler: /usr/bin/cc - skipped > -- Detecting C compile features > -- Detecting C compile features - done > -- Detecting CXX compiler ABI info > -- Detecting CXX compiler ABI info - done > -- Check for working CXX compiler: /usr/bin/c++ - skipped > -- Detecting CXX compile features > -- Detecting CXX compile features - done > -- Found PkgConfig: /usr/bin/pkg-config (found version "1.8.1") > -- Checking for module 'tesseract' > -- Found tesseract, version 5.3.4 > -- Checking for module 'lept' > -- Found lept, version 1.82.0 > -- Checking for module 'libcurl' > -- Found libcurl, version 8.2.1 > -- Configuring done (0.3s) > -- Generating done (0.0s) > -- Build files have been written to: > /home/raphy/tesseract/Examples/builddir > raphy@raohy:~/tesseract/Examples$ > raphy@raohy:~/tesseract/Examples$ cmake --build builddir/ > [ 50%] Building CXX object > CMakeFiles/BasicExample.dir/BasicExample.cpp.o > [100%] Linking CXX executable BasicExample > /usr/bin/ld: /usr/local/lib/libtesseract.a(baseapi.cpp.o): in function > `tesseract::TessBaseAPI::ProcessPagesInternal(char const*, char const*, > int, tesseract::TessResultRenderer*)::{lambda(char > const*)#1}::operator()(char const*) const': > baseapi.cpp:(.text+0x13): undefined reference to `curl_easy_strerror' > /usr/bin/ld: baseapi.cpp:(.text+0x3b): undefined reference to > `curl_easy_cleanup' > /usr/bin/ld: /usr/local/lib/libtesseract.a(baseapi.cpp.o): in function > `tesseract::TessBaseAPI::ProcessPagesInternal(char const*, char const*, > int, tesseract::TessResultRenderer*)': > baseapi.cpp:(.text+0xad07): undefined reference to `curl_easy_init' > /usr/bin/ld: baseapi.cpp:(.text+0xad48): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: baseapi.cpp:(.text+0xad5d): undefined reference to > `curl_easy_strerror' > /usr/bin/ld: baseapi.cpp:(.text+0xad89): undefined reference to > `curl_easy_cleanup' > /usr/bin/ld: baseapi.cpp:(.text+0xb26f): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: baseapi.cpp:(.text+0xb298): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: baseapi.cpp:(.text+0xb2c1): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: baseapi.cpp:(.text+0xb2fa): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: baseapi.cpp:(.text+0xb324): undefined reference to > `curl_easy_setopt' > /usr/bin/ld: > /usr/local/lib/libtesseract.a(baseapi.cpp.o):baseapi.cpp:(.text+0xb3c9): > more undefined references to `curl_easy_setopt' follow > /usr/bin/ld: /usr/local/lib/libtesseract.a(baseapi.cpp.o): in function > `tesseract::TessBaseAPI::ProcessPagesInternal(char const*, char const*, > int, tesseract::TessResultRenderer*)': > baseapi.cpp:(.text+0xb455): undefined reference to `curl_easy_perform' > /usr/bin/ld: baseapi.cpp:(.text+0xb6b0): undefined reference to > `curl_easy_cleanup' > /usr/bin/ld: /usr/local/lib/libtesseract.a(tessdatamanager.cpp.o): in > function `tesseract::TessdataManager::LoadArchiveFile(char const*)': > tessdatamanager.cpp:(.text+0x199): undefined reference to > `archive_read_new' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x1ad): undefined reference to > `archive_read_support_filter_all' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x1b5): undefined reference to > `archive_read_support_format_all' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x1c5): undefined reference to > `archive_read_open_filename' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x1e6): undefined reference to > `archive_entry_pathname' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x1f6): undefined reference to > `archive_read_next_header' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x208): undefined reference to > `archive_read_free' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x294): undefined reference to > `archive_entry_size' > /usr/bin/ld: tessdatamanager.cpp:(.text+0x2e1): undefined reference to > `archive_read_data' > collect2: error: ld returned 1 exit status > gmake[2]: *** [CMakeFiles/BasicExample.dir/build.make:99: > BasicExample] Error 1 > gmake[1]: *** [CMakeFiles/Makefile2:83: > CMakeFiles/BasicExample.dir/all] Error 2 > gmake: *** [Makefile:91: all] Error 2 > raphy@raohy:~/tesseract/Examples$ > > What am I missing? How to make it work? > > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/c42c4e75-ae31-4a78-9152-839df7c00421n%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/c42c4e75-ae31-4a78-9152-839df7c00421n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8zsS-eo-s6_GO%3DHg1ED-6A0zKN%2BmVy4iy47k7MkzANarQ%40mail.gmail.com.
