When building a Linux kernel the new default of having -Wunused-but-set-variable is incredibly noisy in kernel build. I get hundreds of new warnings from that.
I looked at some of the circumstances and it's typically int var = VALUE; #ifdef SYMBOL if (do something) var = other value #endif with SYMBOL being undefined in this build. I don't think it's feasible to avoid the warning short of turning it off. I suspect other code bases will have the same problem. Can the warning be removed from -Wall please? -- Summary: -Wunused- but-set-variable is incredible noisy in kernel builds Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: andi-gcc at firstfloor dot org GCC host triplet: x86_64-linux GCC target triplet: x86_64-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44478