[Kst] CFITSIO Problem

[Nicholas Chapman]

Hello, I am working on writing a plugin to read binary FITS tables,
specifically for HAWCPol, an instrument which will fly on SOFIA,
http://www.sofia.usra.edu/.  Currently I am testing by attempting to
read data from a different instrument called SHARP (hence the name
SHARP appearing in the output below).

I downloaded the kst source code using git (and just confirmed with a
'git pull' that this is the most current version).  I have written a
plugin, however I cannot compile kst with my new plugin to test it.
Based on the errors in the compile output, I think the problem is with
linking to the CFITSIO library.  However, when I ran cmake, it seemed
to find the CFITSIO library, so I am baffled.  I would appreciate any
suggestions on what might be causing this problem.  Details on my
steps taken are below.

I am running Mac OS X 10.6.8 and I am using QtCreator 4.8.4.  I have
enabled my plugin by editing kst/cmake/src/datasources/CMakeLists.txt
as follows:
kst_add_plugin(. sharp)
if(sharp) # NLC - Added to support raw sharp data
	include_directories(${SHARP_INCLUDE_DIR} ${CFITSIO_INCLUDE_DIR})
	kst_add_plugin(. sharp)
	kst_link(${SHARP_LIBRARIES} ${CFITSIO_LIBRARIES})
endif()

Now, to compile kst, I started Qt Creator and opened the project by
selecting kst/cmake/CMakeLists.txt.  I then ran cmake.  Part of the
output contains:
Found CFITSIO:
--      includes : /opt/local/include;/opt/local/include/..
--      libraries: /opt/local/lib/libcfitsio.a;m
-- 

Therefore, kst does seem to know about CFITSIO, and found it in the
correct location.  I installed CFITSIO using macports and have
successfully used this library to compile other programs.  I did make
sure to put "#include <fitsio.h>" in my sharp.h header file.

However, when I select build, the compile output ends with errors that
suggest the CFITSIO library is not being linked properly:

src/datasources/CMakeFiles/kst2_datasource_sharp.dir/__/__/__/src/datasources/sharp/moc_sharp.cxx.o
Linking CXX shared module
../../build/bin/kst2.app/Contents/plugins/libkst2_datasource_sharp.so
Undefined symbols:
  "_ffclos", referenced from:
      SharpSourcePlugin::understands(QSettings*, QString const&)
constin sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
      SharpSource::reset()      in sharp.cpp.o
      SharpSource::~SharpSource()in sharp.cpp.o
      SharpSource::~SharpSource()in sharp.cpp.o
      SharpSource::~SharpSource()in sharp.cpp.o
  "_ffmahd", referenced from:
      SharpSource::init()      in sharp.cpp.o
  "_ffgcnn", referenced from:
      SharpSource::init()      in sharp.cpp.o
  "_ffgcno", referenced from:
      SharpSource::readString(QString*, QString const&)in sharp.cpp.o
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
  "_ffopentest", referenced from:
      SharpSourcePlugin::understands(QSettings*, QString const&)
constin sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
  "_ffgcv", referenced from:
      SharpSource::readString(QString*, QString const&)in sharp.cpp.o
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
  "_ffrprt", referenced from:
      SharpSource::readString(QString*, QString const&)in sharp.cpp.o
      SharpSource::readString(QString*, QString const&)in sharp.cpp.o
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
  "_ffgnrw", referenced from:
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
  "_ffgtcl", referenced from:
      SharpSource::readScalar(double*, QString const&)in sharp.cpp.o
      SharpSource::readMatrix(double*, QString const&)in sharp.cpp.o
      SharpSource::readField(double*, QString const&, int, int)in sharp.cpp.o
      SharpSource::init()      in sharp.cpp.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[2]: *** [build/bin/kst2.app/Contents/plugins/libkst2_datasource_sharp.so]
Error 1
make[1]: *** [src/datasources/CMakeFiles/kst2_datasource_sharp.dir/all] Error 2
make: *** [all] Error 2
10:25:42: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project Kst (kit: Desktop)
When executing step 'Make'
10:25:42: Elapsed time: 13:43.

Thanks,

Nicholas Chapman
Dept of Physics & Astronomy
Northwestern University