*I made some headway by removing -Wp,-D_FORTIFY_SOURCE=2 from the global cflags (by creating a custom %__global_cflags in ~/.rpmmacros (the default values are in /usr/lib/rpm/redhat/macros but it is better to put custom changes in ~/.rpmmacros because that file doesn't get overwritten by every yum update...) The new line looks like: %__global_cflags -O2 -g -pipe -Wall -fexceptions -fstack-protector --param=ssp-buffer-size=4 *There is a big update today for Fedora 12. kernel, x, everything. Try getting the updates first. It might work.