Gentoo's Bugzilla –
Attachment 306111 Details for
Bug 409121pango failed with /lib64/libm.a(k_standard.o): relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../lib64/libm.a: could not read symbols: Bad value