I thought I had already done this, but apparently not. I added these because of -Wimplicit-fallthrough, but they're no longer needed, so remove it to not suppress any possible useful warnings.
Bootstrapped/regtested on x86_64-linux, ppc64-linux and aarch64-linux, ok for trunk? 2016-10-13 Marek Polacek <pola...@redhat.com> * Makefile.in (insn-attrtab.o-warn, insn-dfatab.o-warn, insn-latencytab.o-warn, insn-output.o-warn, insn-emit.o-warn): Don't use -Wno-error. diff --git gcc/Makefile.in gcc/Makefile.in index 76b77ab..d6e44e4 100644 --- gcc/Makefile.in +++ gcc/Makefile.in @@ -218,11 +218,6 @@ libgcov-merge-tool.o-warn = -Wno-error gimple-match.o-warn = -Wno-unused generic-match.o-warn = -Wno-unused dfp.o-warn = -Wno-strict-aliasing -insn-attrtab.o-warn = -Wno-error -insn-dfatab.o-warn = -Wno-error -insn-latencytab.o-warn = -Wno-error -insn-output.o-warn = -Wno-error -insn-emit.o-warn = -Wno-error # All warnings have to be shut off in stage1 if the compiler used then # isn't gcc; configure determines that. WARN_CFLAGS will be either Marek