Nope, but to be sure, I reinstalled all packages via devkitProUpdater-1.6.0, cleaned the project and re-launched the Makefile.
The .dol works the same on wii or on dolphin emulator: after few seconds (really very few) no more input from wiimote (with or without expansion) and I need to turn off the console.
I don't known if is an input problem or the program is freezed (the led on wiimote remains on).
Same source files compiled with previous libogc and previous compiler give a working .dol
I don't know if I can use the new library with the old r27 compiler or the old library with the new r28 compiler.
Perhaps I must recompile libogc 1.8.12 with the new r28 compiler and try and/or recompile libogc 1.8.15 with old r27 compiler and try. This to discover where is the problem.
Or you can do it for me