Cannot get est_noise compiled in RH9

[tianyf@tyf ~/tmp]$ ifort -cm -w95 -O3 -ip -ipo_obj -mp1 -static -o est_noise6ab est_noise6ac.f -L/opt/intel/mkl/10.1.0.015/lib/32 -lmkl_lapack -lmkl_ia32 -lguide -lpthread
ifort: command line remark #10148: option '-ipo_obj' not supported
/opt/intel/mkl/10.1.0.015/lib/32/libguide.a(z_Linux_util.o)(.text+0xa64): In function `__kmp_register_atfork':
: undefined reference to `pthread_atfork'

Where is the problem?