Compile time error

[kevin-vilbig]

Fedora 24, liblouis 2.6.0

I rolled back to 2.5.0 and got it to, at least, compile properly.

logging.c:65:42: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
static logcallback logCallbackFunction = defaultLogCallback;
^~~~~~~~~~~~~~~~~~
logging.c: In function 'lbu_registerLogCallback':
logging.c:69:25: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
logCallbackFunction = defaultLogCallback;
^
logging.c: At top level:
logging.c:130:1: error: conflicting types for 'defaultLogCallback'
defaultLogCallback (logLevels level, const char *message)
^~~~~~~~~~~~~~~~~~
logging.c:63:13: note: previous declaration of 'defaultLogCallback' was here
static void defaultLogCallback(int level, const char *message);
^~~~~~~~~~~~~~~~~~
logging.c:63:13: warning: 'defaultLogCallback' used but never defined
Makefile:824: recipe for target 'liblouisutdml_la-logging.lo' failed

[egli]

configure now checks for liblouis > 3.0, so I think this issue should be solved.

@kevin-vilbig can you confirm with the new alpha release?