> As far as I can tell from your original note, your build failed because > you do not have a 64-bit version of the library -lkernel32. That is not > a gcc library. I assume it is a Windows library. I don't know if you > are missing a 64-bit version of the library, or if the bug is that you > should not be linking against -lkernel32 for a 64-bit build. E.g., > perhaps there is a -lkernel64 on Windows, I don't know. I have built both versions of CRT for 32 and 64 bit. 32bit CRT in <prefix>/<target>/lib path, and 64bit in <prefix>/<target>/lib64 If you see logfile: http://pastebin.com/KiGHVgVQ then you can see that for linking 32bit and 64bit libgcc_s_sjlj-1.dll are used 32bit CRT. If in Makefile for 64bit version I replace <prefix>/<target>/lib with <prefix>/<target>/lib64 - linking is successfully. I.e. the problem is that wrong Makefiles are created. I want to understand why? Ping?