[vtkusers] SystemTools.cxx:326:51: error: ‘realpath’ was not declared in this scope

[Andrew J. Buckler (Elucid Bioimaging)]

Hello,
I am building VTK on Windows with Cygwin.  I am trying to make the use of cmake and the build process as similar to Mac as possible; I already have it working there.  The cmake configuration works fine, but the build fails:
$ make
Scanning dependencies of target VTKData
[  0%] Built target VTKData
Scanning dependencies of target vtksys
[  0%] Building C object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/ProcessUNIX.c.o
[  0%] Building C object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/Base64.c.o
[  0%] Building C object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/EncodingC.c.o
[  0%] Building C object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/MD5.c.o
[  0%] Building C object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/System.c.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/Directory.cxx.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/DynamicLoader.cxx.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/EncodingCXX.cxx.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/Glob.cxx.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/RegularExpression.cxx.o
[  0%] Building CXX object Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/SystemTools.cxx.o
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx: In function ‘void Realpath(const string&, std::string&, std::string*)’:
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx:326:51: error: ‘realpath’ was not declared in this scope
   char *ret = realpath(path.c_str(), resolved_name);
                                                   ^
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx: In function ‘int vtksys::kwsysUnPutEnv(const string&)’:
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx:518:16: error: ‘putenv’ was not declared in this scope
   if(putenv(buf) < 0 && errno != EINVAL)
                ^
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx: In member function ‘bool vtksys::kwsysEnv::Put(const char*)’:
/cygdrive/c/Users/Andrew Buckler/My Documents/projects/VTK-6.3.0/Utilities/KWSys/vtksys/SystemTools.cxx:658:25: error: ‘putenv’ was not declared in this scope
     return putenv(newEnv) == 0;
                         ^
Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/build.make:302: recipe for target 'Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/SystemTools.cxx.o' failed
make[2]: *** [Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/SystemTools.cxx.o] Error 1
CMakeFiles/Makefile2:193: recipe for target 'Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/all' failed
make[1]: *** [Utilities/KWSys/vtksys/CMakeFiles/vtksys.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

Any help?

Best regards,
Andy
-------------------------------------
Andrew J. Buckler, President and CEO
Elucid Bioimaging Inc.
225 Main Street, Suite 15 | Wenham, MA  01984  USA
Office: +1-978-468-0508
Mobile: +1-978-473-1986
Fax: +1-978-468-0527
andrew.buckler at elucidbio.com<mailto:andrew.buckler at elucidbio.com> | www.elucidbio.com<http://www.elucidbio.com/>

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