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Re: Cross compiling Newlib for ARM in Cygwin


On 2016-03-22 09:33, Schwarz, Konrad wrote:
pardon my obtuseness: I'd like to build newlib for the arm-none-eabi target on a Cygwin host.

I have a arm-none-eabi GCC and Binutils which was built for native Windows.

Cygwin != native Windows. If you want to use a Cygwin shell for cross-compiling, then you'll want Cygwin-hosted cross-compilers.

I have downloaded newlib-cygwin in directory ./newlib-cygwin .  I create a directory ./newlib-cygwin-arm, and

$ export CC=arm-none-eabi-gcc
$ cd newlib-cygwin-arm
$ ../newlib-cygwin/configure

That is not how cross-compiling works. Cross-compiler toolchains (binutils/gcc/gdb/newlib) are built by configuring with the desired --target.

FWIW, I have built a Cygwin-hosted toolchain for most of the bare-metal targets. If there is general interest in these, I could make those available.

--
Yaakov


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