../libicq2000-0.1/liblibicq2000.a(TLV.o): In function `ICQ2000::MessageDataTLV::ParseValue(ICQ2000::Buffer&)':
TLV.cpp:(.text+0x3322): undefined reference to `std::_Rb_tree<unsigned short, std::pair<unsigned short const, ICQ2000::InTLV*>, std::_Select1st<std::pair<unsigned short const, ICQ2000::InTLV*> >, std::less<unsigned short>, std::allocator<std::pair<unsigned short const, ICQ2000::InTLV*> > >::find(unsigned short const&) const'
TLV.cpp:(.text+0x3353): undefined reference to `std::_Rb_tree<unsigned short, std::pair<unsigned short const, ICQ2000::InTLV*>, std::_Select1st<std::pair<unsigned short const, ICQ2000::InTLV*> >, std::less<unsigned short>, std::allocator<std::pair<unsigned short const, ICQ2000::InTLV*> > >::lower_bound(unsigned short const&)'
TLV.cpp:(.text+0x338f): undefined reference to `std::_Rb_tree<unsigned short, std::pair<unsigned short const, ICQ2000::InTLV*>, std::_Select1st<std::pair<unsigned short const, ICQ2000::InTLV*> >, std::less<unsigned short>, std::allocator<std::pair<unsigned short const, ICQ2000::InTLV*> > >::insert_unique(std::_Rb_tree_iterator<std::pair<unsigned short const, ICQ2000::InTLV*> >, std::pair<unsigned short const, ICQ2000::InTLV*> const&)'
../libicq2000-0.1/liblibicq2000.a(TLV.o): In function `ICQ2000::UserInfoCapabilitiesTLV::~UserInfoCapabilitiesTLV()':
TLV.cpp:(.gnu.linkonce.t._ZN7ICQ200023UserInfoCapabilitiesTLVD1Ev+0x1e): undefined reference to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)'
../libicq2000-0.1/liblibicq2000.a(TLV.o): In function `ICQ2000::UserInfoCapabilitiesTLV::~UserInfoCapabilitiesTLV()':
TLV.cpp:(.gnu.linkonce.t._ZN7ICQ200023UserInfoCapabilitiesTLVD0Ev+0x1e): undefined reference to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)'
../libicq2000-0.1/liblibicq2000.a(TLV.o): In function `ICQ2000::CapabilitiesTLV::~CapabilitiesTLV()':
TLV.cpp:(.gnu.linkonce.t._ZN7ICQ200015CapabilitiesTLVD1Ev+0x23): undefined reference to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)'
../libicq2000-0.1/liblibicq2000.a(TLV.o): In function `ICQ2000::CapabilitiesTLV::~CapabilitiesTLV()':
TLV.cpp:(.gnu.linkonce.t._ZN7ICQ200015CapabilitiesTLVD0Ev+0x23): undefined reference to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)'
../libicq2000-0.1/liblibicq2000.a(SNAC-BUD.o): In function `ICQ2000::BuddyOnlineSNAC::~BuddyOnlineSNAC()':
SNAC-BUD.cpp:(.gnu.linkonce.t._ZN7ICQ200015BuddyOnlineSNACD1Ev+0xb7): undefined reference to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)'
../libicq2000-0.1/liblibicq2000.a(SNAC-BUD.o):SNAC-BUD.cpp:(.gnu.linkonce.t._ZN7ICQ200015BuddyOnlineSNACD0Ev+0xb7): more undefined references to `std::_Rb_tree<ICQ2000::Capabilities::Flag, ICQ2000::Capabilities::Flag, std::_Identity<ICQ2000::Capabilities::Flag>, std::less<ICQ2000::Capabilities::Flag>, std::allocator<ICQ2000::Capabilities::Flag> >::_M_erase(std::_Rb_tree_node<ICQ2000::Capabilities::Flag>*)' follow
collect2: ld returned 1 exit status
make[3]: *** [centericq] &#65533;&#65533;&#65533; 1
make[3]: Leaving directory `/var/tmp/portage/centericq-4.21.0-r2/work/centericq-4.21.0/src'
make[2]: *** [all-recursive] &#65533;&#65533;&#65533; 1
make[2]: Leaving directory `/var/tmp/portage/centericq-4.21.0-r2/work/centericq-4.21.0/src'
make[1]: *** [all-recursive] &#65533;&#65533;&#65533; 1
make[1]: Leaving directory `/var/tmp/portage/centericq-4.21.0-r2/work/centericq-4.21.0'
make: *** [all-recursive-am] &#65533;&#65533;&#65533; 2

!!! ERROR: net-im/centericq-4.21.0-r2 failed.
Call stack:
  ebuild.sh, line 1539:   Called dyn_compile
  ebuild.sh, line 939:   Called src_compile
  centericq-4.21.0-r2.ebuild, line 76:   Called die

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