emerge wine

...
/usr/include/gentoo-multilib/amd64/bits/confname.h:525: error: redeclaration of enumerator ‘_CS_LFS_LINTFLAGS’
/usr/include/gentoo-multilib/x86/bits/confname.h:525: error: previous definition of ‘_CS_LFS_LINTFLAGS’ was here
/usr/include/gentoo-multilib/amd64/bits/confname.h:527: error: redeclaration of enumerator ‘_CS_LFS64_CFLAGS’
/usr/include/gentoo-multilib/x86/bits/confname.h:527: error: previous definition of ‘_CS_LFS64_CFLAGS’ was here
/usr/include/gentoo-multilib/amd64/bits/confname.h:529: error: redeclaration of enumerator ‘_CS_LFS64_LDFLAGS’
...