I have a reproducible error attempting to build Boost 1.51.0 for a PPC64 system: libs/context/src/asm/fcontext_ppc64_sysv_elf_gas.S:225: Error: syntax error; found `@', expected `,' libs/context/src/asm/fcontext_ppc64_sysv_elf_gas.S:225: Error: junk at end of line: `@plt' libs/context/src/asm/fcontext_ppc64_sysv_elf_gas.S:249: Error: syntax error; found `@', expected `,' libs/context/src/asm/fcontext_ppc64_sysv_elf_gas.S:249: Error: junk at end of line: `@plt' I've seen one other person report this online, but I've seen no follow-ups. 1) Is this a known issue in 1.51.0? 2) Is there a patch? 3) Should I try the 1.52.0 Beta instead? I'd rather not spend all the time building it to find there is an issue. I have 1.51.0 for PPC32, i686, X86_64, and ARM - it's just the PPC64 that fails.