Installation fixes for Mac OSX 10.9.4

[pvagovic]

Compilation and link errors have been fixed for OSX 10.9 using the macport python 2.7 distribution ...

During compiling the sources of SRW I was getting following errors:

g++ -shared -O3 -fPIC -I..//src/core -I..//src/lib -I..//src/ext/auxparse -I..//src/ext/genmath -D_GNU_SOURCE -D__USE_XOPEN2K8 -DFFTW_ENABLE_FLOAT -D_GM_WITHOUT_BASE -DSRWLIB_STATIC -DNO_TIMER -DANSI_DECLARATORS -DTRILIBRARY -DLINUX -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -L/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7 -o srwlpy.so ../src/clients/python/srwlpy.cpp libsrw.a -L..//../ext_lib -lm -lfftw
Undefined symbols for architecture x86_64:
"_PyArg_ParseTuple", referenced from:

This was fixed by adding -lpython2.7 into PYFLAGS in the srw makefile:

PYFLAGS= -I$(PYPATH)/include/python2.7 -L$(PYPATH)/lib/python2.7 -lpython2.7

After this I was able to compile but in python I was not able to import srwlib due to wrong linking.
In ipython console I was getting this error:

import srwlpy
Fatal Python error: PyThreadState_Get: no current thread
Abort trap: 6

This was caused by linking of the srwlib.o to wrong python. Using otool I could se this output:
srwlpy.so:
srwlpy.so (compatibility version 0.0.0, current version 0.0.0)
/System/Library/Frameworks/Python.framework/Versions/2.7/Python (compatibility version 2.7.0, current version 2.7.5)
/opt/local/lib/libgcc/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.20.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
/opt/local/lib/libgcc/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)

So the linking to /System/Library/ .... /2.7/Python is wrong .... this I was able to fix my manual relinking using install_name_tool:

install_name_tool -change /System/Library/Frameworks/Python.framework/Versions/2.7/Python /opt/local/Library/Frameworks/Python.framework/Versions/2.7/Python srwlpy.so

Now using otool linking was done correctly and srwlib can be imported to python:

otool -L srwlpy.so
srwlpy.so:
srwlpy.so (compatibility version 0.0.0, current version 0.0.0)
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/Python (compatibility version 2.7.0, current version 2.7.5)
/opt/local/lib/libgcc/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.20.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
/opt/local/lib/libgcc/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)