From fd1c5ba0cbbd31c4713d9283c4fa5c3265ad2296 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sat, 3 Feb 2007 14:10:00 -0500 Subject: Teach build to build only the toys/*.c selected in .config, and teach CFG_TOYSH_DEBUG to shut up the spurious "gcc can't tell that this is never actually used uninitialized because gcc is stupid" warnings. --- lib/portability.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib/portability.h') diff --git a/lib/portability.h b/lib/portability.h index 5aa4a0bf..9f3f1b78 100644 --- a/lib/portability.h +++ b/lib/portability.h @@ -25,3 +25,15 @@ #define SWAP_LE32(x) (x) #define SWAP_LE64(x) (x) #endif + +// Some versions of gcc produce spurious "may be uninitialized" warnings in +// cases where it provably can't happen. Unfortunately, although this warning +// is calculated and produced separately from the "is definitely used +// uninitialized" warnings, there's no way to turn off the broken spurious "may +// be" warnings without also turning off the non-broken "is" warnings. + +#if CFG_TOYBOX_DEBUG +#define GCC_BUG =0 +#else +#define GCC_BUG +#endif -- cgit v1.2.3