Unable to install (Error: 'cstring' file not found) - MacOS Mojave

Collecting tesserocr
  Using cached https://files.pythonhosted.org/packages/f8/6d/4e81e041f33a4419e59edcb1dbdf3c56e9393f60f5ef531381bd67a1339b/tesserocr-2.3.1.tar.gz
Building wheels for collected packages: tesserocr
  Running setup.py bdist_wheel for tesserocr ... error
  Complete output from command /Users/charlieyou/miniconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-install-wgh41bv0/tesserocr/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-wheel-5b3wyn1i --python-tag cp36:
  pkg-config failed to find tesseract/lept libraries: b"Package tesseract was not found in the pkg-config search path.\nPerhaps you should add the directory containing `tesseract.pc'\nto the PKG_CONFIG_PATH environment variable\nNo package 'tesseract' found\n"
  Supporting tesseract v4.0.0
  Building with configs: {'libraries': ['tesseract', 'lept'], 'cython_compile_time_env': {'TESSERACT_VERSION': 262144}}
  running bdist_wheel
  running build
  running build_ext
  building 'tesserocr' extension
  creating build
  creating build/temp.macosx-10.7-x86_64-3.6
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/usr/local/include -I/Users/charlieyou/miniconda3/include/python3.6m -c tesserocr.cpp -o build/temp.macosx-10.7-x86_64-3.6/tesserocr.o -std=c++11 -DUSE_STD_NAMESPACE
  warning: include path for stdlibc++ headers not found; pass '-std=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
  In file included from tesserocr.cpp:603:
  **/usr/local/include/tesseract/unichar.h:24:10: fatal error: 'cstring' file not found
  #include <cstring>**
           ^~~~~~~~~
  1 warning and 1 error generated.
  error: command 'gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for tesserocr
  Running setup.py clean for tesserocr
Failed to build tesserocr
Installing collected packages: tesserocr
  Running setup.py install for tesserocr ... error
    Complete output from command /Users/charlieyou/miniconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-install-wgh41bv0/tesserocr/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-record-0grp17wc/install-record.txt --single-version-externally-managed --compile:
    pkg-config failed to find tesseract/lept libraries: b"Package tesseract was not found in the pkg-config search path.\nPerhaps you should add the directory containing `tesseract.pc'\nto the PKG_CONFIG_PATH environment variable\nNo package 'tesseract' found\n"
    Supporting tesseract v4.0.0
    Building with configs: {'libraries': ['tesseract', 'lept'], 'cython_compile_time_env': {'TESSERACT_VERSION': 262144}}
    running install
    running build
    running build_ext
    building 'tesserocr' extension
    creating build
    creating build/temp.macosx-10.7-x86_64-3.6
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/usr/local/include -I/Users/charlieyou/miniconda3/include/python3.6m -c tesserocr.cpp -o build/temp.macosx-10.7-x86_64-3.6/tesserocr.o -std=c++11 -DUSE_STD_NAMESPACE
    warning: include path for stdlibc++ headers not found; pass '-std=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    In file included from tesserocr.cpp:603:
    **/usr/local/include/tesseract/unichar.h:24:10: fatal error: 'cstring' file not found
    #include <cstring>**
             ^~~~~~~~~
    1 warning and 1 error generated.
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/Users/charlieyou/miniconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-install-wgh41bv0/tesserocr/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-record-0grp17wc/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-install-wgh41bv0/tesserocr/

Hi,

I’m trying to install tesserocr but encountering the above error. I’ve tried a few different ways to install, as well as a different potential fixes in previous posts, all of which with no avail.

At this point I’m certain the issue is not related to this package (since my friend installed it with no problems, I also installed on a Ubuntu VM w/o issue), however I’m still posting here hoping for people who are close to this package can offer some insights.

My tesseract (installed through brew) version is: tesseract 4.0.0 leptonica-1.76.0 libjpeg 9c : libpng 1.6.35 : libtiff 4.0.9 : zlib 1.2.11

Thanks and let me know what other info you might need.