Не собирается pam_smb....

В самом начале установке при проверке системы, причём любая из доступных версий. Что это может быть???

checking for ANSI C header files... yes
checking for shadow.h... yes
checking for security/pam_appl.h... yes
checking for unistd.h... yes
checking for security/pam_modules.h... yes
checking for sys/vfs.h... yes
checking for LOG_AUTHPRIV... yes
checking for main in -lcrypt... yes
checking for main in -lnsl... yes
checking for main in -lsocket... no
checking for working const... yes
checking system version (for dynamic loading)... ./configure: line 1619: syntax error near unexpected token `('
./configure: line 1619: ` case `(ac_space=' '; set | grep ac_space) 2>&1` in'

!!! Please attach the following file when filing a report to bugs.gentoo.org:
!!! /var/tmp/portage/pam_smb-1.9.9-r1/work/pam_smb/config.log

!!! ERROR: sys-auth/pam_smb-1.9.9-r1 failed.
Call stack:
ebuild.sh, line 1526: Called dyn_compile
ebuild.sh, line 923: Called src_compile
pam_smb-1.9.9-r1.ebuild, line 18: Called econf '--disable-root-only'
ebuild.sh, line 527: Called die

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