In file included from ./src/constants.c:10:0:
    ./src/constants.c: In function 'PyXmlSec_ConstantsModule_Init':
    ./src/constants.c:278:50: error: 'xmlSecXkmsNs' undeclared (first use in this function)
         tmp = PyString_FromString((const char*)(JOIN(xmlSec, name))); \
                                                      ^
    ./src/common.h:25:23: note: in definition of macro 'DO_JOIN2'
     #define DO_JOIN2(X,Y) X##Y
                           ^
    ./src/common.h:23:19: note: in expansion of macro 'DO_JOIN1'
     #define JOIN(X,Y) DO_JOIN1(X,Y)
                       ^~~~~~~~
    ./src/constants.c:278:45: note: in expansion of macro 'JOIN'
         tmp = PyString_FromString((const char*)(JOIN(xmlSec, name))); \
                                                 ^~~~
    ./src/constants.c:287:5: note: in expansion of macro 'PYXMLSEC_ADD_NS_CONSTANT'
         PYXMLSEC_ADD_NS_CONSTANT(XkmsNs, "XKMS");
         ^~~~~~~~~~~~~~~~~~~~~~~~
    ./src/constants.c:278:50: note: each undeclared identifier is reported only once for each function it appears in
         tmp = PyString_FromString((const char*)(JOIN(xmlSec, name))); \
                                                      ^
    ./src/common.h:25:23: note: in definition of macro 'DO_JOIN2'
     #define DO_JOIN2(X,Y) X##Y
                           ^
    ./src/common.h:23:19: note: in expansion of macro 'DO_JOIN1'
     #define JOIN(X,Y) DO_JOIN1(X,Y)
                       ^~~~~~~~
    ./src/constants.c:278:45: note: in expansion of macro 'JOIN'
         tmp = PyString_FromString((const char*)(JOIN(xmlSec, name))); \
                                                 ^~~~
    ./src/constants.c:287:5: note: in expansion of macro 'PYXMLSEC_ADD_NS_CONSTANT'
         PYXMLSEC_ADD_NS_CONSTANT(XkmsNs, "XKMS");
         ^~~~~~~~~~~~~~~~~~~~~~~~
    error: command 'gcc' failed with exit status 1
    
    ----------------------------------------