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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data ChemmineOB
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* checking for file ‘ChemmineOB/DESCRIPTION’ ... OK
* preparing ‘ChemmineOB’:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* running ‘cleanup’
* installing the package to build vignettes
      -----------------------------------
* installing *source* package ‘ChemmineOB’ ...
** using staged installation
checking for pkg-config... /opt/R/x86_64/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for OPENBABEL... no
checking for OPENBABEL... no
checking for gcc... clang -arch x86_64
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether clang -arch x86_64 accepts -g... yes
checking for clang -arch x86_64 option to accept ISO C89... none needed
checking how to run the C preprocessor... clang -arch x86_64 -E
configure: creating ./config.status
config.status: creating src/Makevars
** libs
using C++ compiler: ‘Apple clang version 14.0.0 (clang-1400.0.29.202)’
using SDK: ‘MacOSX11.3.sdk’
clang++ -arch x86_64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/usr/include/openbabel3  -I/usr/include/eigen3  -DUSE_BOOST -DHAVE_EIGEN -D_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION  -I/usr/local/include/eigen3 -I/usr/local/include/openbabel3    -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/BH/include' -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/Rcpp/include' -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/zlibbioc/include' -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2   -c ChemmineOB.cpp -o ChemmineOB.o
In file included from ChemmineOB.cpp:1576:
/usr/local/include/openbabel3/openbabel/griddata.h:74:12: warning: 'OpenBabel::OBGridData::GetValue' hides overloaded virtual function [-Woverloaded-virtual]
    double GetValue(int i, int j, int k) const;
           ^
/usr/local/include/openbabel3/openbabel/base.h:228:32: note: hidden overloaded virtual function 'OpenBabel::OBGenericData::GetValue' declared here: different number of parameters (0 vs 3)
    virtual const std::string &GetValue()  const
                               ^
In file included from ChemmineOB.cpp:1576:
/usr/local/include/openbabel3/openbabel/griddata.h:76:12: warning: 'OpenBabel::OBGridData::GetValue' hides overloaded virtual function [-Woverloaded-virtual]
    double GetValue (vector3 pos) const;
           ^
/usr/local/include/openbabel3/openbabel/base.h:228:32: note: hidden overloaded virtual function 'OpenBabel::OBGenericData::GetValue' declared here: different number of parameters (0 vs 1)
    virtual const std::string &GetValue()  const
                               ^
In file included from ChemmineOB.cpp:1582:
/usr/local/include/openbabel3/openbabel/reaction.h:99:15: warning: 'OpenBabel::OBReaction::GetTitle' hides overloaded virtual function [-Woverloaded-virtual]
  std::string GetTitle()        const { return _title; }
              ^
/usr/local/include/openbabel3/openbabel/base.h:286:28: note: hidden overloaded virtual function 'OpenBabel::OBBase::GetTitle' declared here: different number of parameters (1 vs 0)
      virtual const char  *GetTitle(bool UNUSED(replaceNewlines) = true) const { return "";}
                           ^
In file included from ChemmineOB.cpp:1582:
/usr/local/include/openbabel3/openbabel/reaction.h:101:8: warning: 'OpenBabel::OBReaction::SetTitle' hides overloaded virtual function [-Woverloaded-virtual]
  void SetTitle(const std::string& title) { _title=title; }
       ^
/usr/local/include/openbabel3/openbabel/base.h:287:21: note: hidden overloaded virtual function 'OpenBabel::OBBase::SetTitle' declared here: type mismatch at 1st parameter ('const char *' vs 'const std::string &' (aka 'const basic_string<char, char_traits<char>, allocator<char>> &'))
      virtual void  SetTitle(const char *) {}
                    ^
ChemmineOB.cpp:4160:7: warning: unused variable 'ecode' [-Wunused-variable]
  int ecode = 0; arg1 = (std::ios_base::event) swigarg_arg1; arg2 = (std::ios_base *) &swigarg_arg2; arg3 = (int) swigarg_arg3;
      ^
5 warnings generated.
clang++ -arch x86_64 -std=gnu++17 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/usr/include/openbabel3  -I/usr/include/eigen3  -DUSE_BOOST -DHAVE_EIGEN -D_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION  -I/usr/local/include/eigen3 -I/usr/local/include/openbabel3    -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/BH/include' -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/Rcpp/include' -I'/Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library/zlibbioc/include' -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2   -c canonical.cpp -o canonical.o
clang++ -arch x86_64 -std=gnu++17 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/x86_64/lib -o ChemmineOB.so ChemmineOB.o canonical.o -L/usr/local/lib/openbabel3 -lopenbabel -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
ld: warning: directory not found for option '-L/usr/local/lib/openbabel3'
ld: library not found for -lopenbabel
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [ChemmineOB.so] Error 1
ERROR: compilation failed for package ‘ChemmineOB’
* removing ‘/private/tmp/Rtmpv76jJJ/Rinst679b326ed7bc/ChemmineOB’
      -----------------------------------
ERROR: package installation failed