emerge xorg-x11出错［已解决］

windyzhousir

当我使用emerge xorg-x11时，编译到freeglut-2.4.0时有这样的错误：
make  all-recursive
make[1]: Entering directory `/var/tmp/portage/freeglut-2.4.0/work/freeglut-2.4.0'
Making all in src
make[2]: Entering directory `/var/tmp/portage/freeglut-2.4.0/work/freeglut-2.4.0/src'
source='freeglut_callbacks.c' object='libglut_la-freeglut_callbacks.lo' libtool=yes \
depfile='.deps/libglut_la-freeglut_callbacks.Plo' tmpdepfile='.deps/libglut_la-freeglut_callbacks.TPlo' \
depmode=gcc3 /bin/sh ../depcomp \
/bin/sh ../libtool --mode=compile i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include    -O2 -mcpu=i686 -pipe -Wall -pedantic -Werror -c -o libglut_la-freeglut_callbacks.lo `test -f freeglut_callbacks.c || echo './'`freeglut_callbacks.cmkdir .libs
i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -O2 -mcpu=i686 -pipe -Wall -pedantic -Werror -c freeglut_callbacks.c -MT libglut_la-freeglut_callbacks.lo -MD -MP -MF .deps/libglut_la-freeglut_callbacks.TPlo  -fPIC -DPIC
`-mcpu=' is deprecated. Use `-mtune=' or '-march=' instead.
mv -f libglut_la-freeglut_callbacks.o .libs/libglut_la-freeglut_callbacks.lo
mv: cannot stat `libglut_la-freeglut_callbacks.o': No such file or directory
make[2]: *** [libglut_la-freeglut_callbacks.lo] Error 1
make[2]: Leaving directory `/var/tmp/portage/freeglut-2.4.0/work/freeglut-2.4.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/freeglut-2.4.0/work/freeglut-2.4.0'
make: *** [all] Error 2

!!! ERROR: media-libs/freeglut-2.4.0 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  ebuild.sh, line 609:   Called die

!!! emake failed
!!! If you need support, post the topmost build error, and the call stack if relevant.



这是什么问题呢？

windyzhousir

解决的方法如下：
在make.conf中把CFLAGS设置为合适的值，默认情况下为
[HTML]CFLAGS="-O2 -mcpu=i686 -pipe"
CHOST="i686-pc-linux-gnu"
CXXFLAGS="-O2 -mcpu=i686 -pipe"
[/HTML]
我把它更改为：
[HTML]CHOST="i686-pc-linux-gnu"
CFLAGS="-march=pentium4 -O2 -pipe "
CXXFLAGS="${CFLAGS}"
[/HTML]
更多的资料请参见：
1、gentoo bugs#134586
2、gentoo-wiki的文章:CLFAGS
3、gentoo-wiki的文章:safe-cflags