warning: using the result of an assignment as a condition without parentheses [-Wparentheses]

aka

assignments in for loops & if/while statements should be wrapped in parens

warning: '&&' within '||' [-Wlogical-op-parentheses], so added paren wraps

switch statement not handling all enumerations, so added default: break;

Note: this is only for sources used by libpd.

Here’s a patch: