Thanks a lot, leif, for the help. I will ask the sysadmin to update binutils.
Your idea with SAGE_FAT_BINARY seems to get around the problem, by now. If it still helps for #20779: sageadm@pmlapsag01:~/sage$ as --version GNU assembler version 2.20.51.0.2-5.44.el6 20100205 Copyright 2009 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or later. This program has absolutely no warranty. This assembler was configured for a target of `x86_64-redhat-linux'. -- sageadm@pmlapsag01:~/sage$ head -25 /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 63 model name : Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz stepping : 2 microcode : 46 cpu MHz : 2593.993 cache size : 25600 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 15 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm ida arat epb xsaveopt pln pts dtherm fsgsbase bmi1 avx2 smep bmi2 invpcid bogomips : 5187.98 clflush size : 64 cache_alignment : 64 address sizes : 42 bits physical, 48 bits virtual power management: -- -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.