On 2012-08-28 18:31, Eir Nym wrote:
I can't build FreeBSD (GENERIC & custom kernel) with clang. Build
finishes for i386 and fails for amd64 for same kernels
What is the error you were getting on amd64?
I have bsd box with following clang version:
FreeBSD clang version 3.0 (branches/release_30 142614) 20111021
Target: x86_64-unknown-freebsd10.0
Thread model: posix
This is rather old, we went through clang 3.1 some time ago, and
recently updated it to 3.2.
I try to compile it with /dev/null as make.conf and following src.conf:
...
but I constantly get warnings (not long ago they was errors) in kernel
like this:
/usr/head/src/sys/netgraph/ng_parse.c:1263:14: warning: comparison of
unsigned expression < 0 is always false [-Wtautological-compare]
if (index < 0 || eptr - (s + *off) != len) {
~~~~~ ^ ~
1 warning generated.
Also I get not initialized warnings and so on.
You can safely ignore those. They are just an incentive for the
maintainers to fix them eventually. Those tautological comparison
warnings specifically are quite harmless: the compiler will optimize the
unused code away anyhow.
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