Just tried to build new (July 2nd) bug fix source:
It made it most of the way through but finally gave this error:
arm-none-eabi-g++: nano.specs: No such file or directory
mingw32-make: *** [core-firmware.elf] Error 1
I have been able to build past source no problem.
I searched for a file called nano.specs in my file system, and there are several of them in the arm-none-eabi/lib folders.
The new makefile has a couple of extra lines but apparently my toolchain doesn’t know what to do with them:
LDFLAGS += --specs=nano.specs -lc -lnosys
LDFLAGS += -u _printf_float
I am using this compiler (running on XP):