Hi Dave, On Mon, 2 May 2011 00:02:16 -0400 Dave Jones <davej@xxxxxxxxxx> wrote: > > Subtly different from what I wrote.. the version I wrote did this .. > > +KBUILD_EXTRA_WARNINGS += $(call cc-option, -Wunused-but-set-variable) Due to other changes in the kbuild tree, I suspect. However, as you say, this part is not relevant to the warning I am getting. > I just tested with the gcc 4.4.5 on master.kernel.org, with a tip of Linus' > tree with my original diff, and it didn't complain at all. Also see my other email. For a i386 defconfig build, I get this warning only twice, for a sparc64 defconfig I get 4 and for a sparc32 defconfig, none: At top level: cc1: warning: unrecognized command line option "-Wno-unused-but-set-variable" > What does gcc -v say ? > gcc version 4.4.5 20101112 (Red Hat 4.4.5-2) (GCC) seems to be fine. $ /opt/cross/gcc-4.4.5-nolibc/x86_64-linux/bin/x86_64-linux-gcc -v Using built-in specs. Target: x86_64-linux Configured with: /home/tony/buildall/src/gcc/configure --target=x86_64-linux --enable-targets=all --prefix=/home/tony/buildall/cross.x86_64/gcc-4.4.5-nolibc/x86_64-linux/ --enable-languages=c --with-newlib --without-headers --with-system-libunwind --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-decimal-float --enable-checking=release --with-mpfr=/home/tony/buildall/src/sys-x86_64 --with-gmp=/home/tony/buildall/src/sys-x86_64 --disable-bootstrap Thread model: single gcc version 4.4.5 (GCC) -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx http://www.canb.auug.org.au/~sfr/
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