#3108 warning: missing terminating ' character in asm

[Philipp Klaus Krause]

When compiling

void f(void) __naked
{
__asm
    ex af, af'
__endasm;
}

I see:

test.c:4:11: warning: missing terminating ' character

This is annoying as such individual ' are valid in z80 (and related) assembler code.

[Philipp Klaus Krause]

The warning probably comes from the preprocessor: See also [bugs:#3159].