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Date: Sat, 4 Oct 2014 23:18:07 -0400 (EDT)
From: Xihong Yin <xyin@gmx.com>
To: freebsd-questions@freebsd.org
Subject: 10 stable buildworld failed
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Hi,

I updated the base source to stable 10. The 'make buildworld' failed with the following messages:

c++   -march=i486 -O2 -fno-strict-aliasing -pipe -I/usr/src/lib/libcxxrt/../../contrib/libcxxrt -Qunused-arguments -fstack-protector -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter -Wno-parentheses -march=i486 -fconserve-space  -Wno-c++11-extensions  -c /usr/src/lib/libcxxrt/../../contrib/libcxxrt/terminate.cc -o terminate.o
c++: error: unknown argument: '-fconserve-space'
*** Error code 1

Stop.
bmake[3]: stopped in /usr/src/lib/libcxxrt
*** Error code 1

Stop.
bmake[2]: stopped in /usr/src
*** Error code 1

Stop.
bmake[1]: stopped in /usr/src
*** Error code 1

Stop.
bmake: stopped in /usr/src
*** [buildworld] Error code 1

Stop in /usr/src.

Could you please help?

Xihong