[Context] Cross compiling for Windows on Linux using gcc fails

[anonymous]

When cross compiling boost 1.51.0 for target Win32 on Linux using mxe, the new "Context"-Lib fails to build. It seems that the problem is different from #7287 and #7262, so I am opening a new ticket. The following errors occur:

gcc.compile.asm bin.v2/libs/context/build/gcc-mingw-4.7.1/debug/link-static/target-os-windows/threadapi-win32/threading-multi/asm/fcontext_i386_sysv_elf_gas.o
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S: Assembler messages:
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:37: Warning: .type pseudo-op used outside of .def/.endef ignored.
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:37: Error: junk at end of line, first unrecognized character is `j'
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:72: Warning: .size pseudo-op used outside of .def/.endef ignored.
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:72: Error: junk at end of line, first unrecognized character is `j'
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:77: Warning: .type pseudo-op used outside of .def/.endef ignored.
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:77: Error: junk at end of line, first unrecognized character is `m'
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:122: Warning: .size pseudo-op used outside of .def/.endef ignored.
libs/context/src/asm/fcontext_i386_sysv_elf_gas.S:122: Error: junk at end of line, first unrecognized character is `m'