Linker errors with i686-w64-mingw32 binaries

[Mike Parker via D.gnu]

Haven't tried the 64-bit binaries yet, but any attempt to compile 
an executable with the 32-bit binaries results in this:

c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function `_lambda3':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:1
983: undefined reference to `D2rt5tlsgc4initFZPv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function 
`D4core6thread6Thread6__dtorMFZv':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:6
33: undefined reference to `D2rt5tlsgc7destroyFPvZv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function `thread_entryPoint at 4':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:1
93: undefined reference to `D2rt5tlsgc4initFZPv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function `thread_attachThis':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:1
903: undefined reference to `D2rt5tlsgc4initFZPv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function `thread_attachByAddrB':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:1
968: undefined reference to `D2rt5tlsgc4initFZPv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function 
`D4core6thread15scanAllTypeImplFNbMDFNbE4core6t
hread8ScanTypePvPvZvPvZv':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:2
666: undefined reference to `D2rt5tlsgc4scanFNbPvMDFNbPvPvZvZv'
c:/d/i686-w64-mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../lib/libg
phobos2.a(thread.o): In function `thread_processGCMarks':
/home/build/tmp/build/.build/src/gcc-4.9.2/libphobos/libdruntime/core/thread.d:2
896: undefined reference to 
`D2rt5tlsgc14processGCMarksFNbPvMDFNbPvZiZv'
collect2.exe: error: ld returned 1 exit status