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When building the kernel for amd64 with clang, don't attempt to use the

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-frename-registers option, as it is not supported.  No change for builds
with gcc.

MFC after:	1 week
This commit is contained in:
Dimitry Andric 2011-12-24 19:01:31 +00:00
parent 8cd925d925
commit 1e139d5f54
1 changed files with 4 additions and 0 deletions
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4
sys/conf/kern.pre.mk
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@ -34,8 +34,12 @@ _MINUS_O= -O2
.endif
.endif
.if ${MACHINE_CPUARCH} == "amd64"
.if ${CC:T:Mclang} != "clang"
COPTFLAGS?=-O2 -frename-registers -pipe
.else
COPTFLAGS?=-O2 -pipe
.endif
.else
COPTFLAGS?=${_MINUS_O} -pipe
.endif
.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)