librdimon.a is only available on ARM architectures, therefore building
newlib-nano for other architectures (e.g. RISC-V) fails presently.
This commit fixes this issue by only copying the library files that
actually exist in the for loop body. Alternatively, it would be
theoretically feasible to change the libraries iterated over based
on the targeted architecture.
apply patch from gentoo because there's no libstdc++.a libsupc++.a or
their nano versions
this matches upstream arm more
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
-lc_nano is used in nano.specs but 'libc_nano.a' is not installed without these changes
These packages should in theory work with our GCC toolchains, but
there are some definite breakages that need to be tracked down.
Comparing output of these to old gcc-arm-embedded is important.
Affected packages include:
- axolooti
- avrdudess
- opentx
- microscheme
- betaflight
- inav
- blackmagic
- simavr
- gnuk
