buildsys: switch warning into a TODO
buildsys: switch warning into a TODO

Signed-off-by: Bernhard Reutner-Fischer <ce1ac9e9ad16abccd7821f371ad381197b4768ac@gmail.com>

kraj/uClibc,hwoarang/uClibc,mephi42/uClibc,kraj/uclibc-ng,groundwater/uClibc,ddcc/klee-uclibc-0.9.33.2,ddcc/klee-uclibc-0.9.33.2,foss-xtensa/uClibc,groundwater/uClibc,groundwater/uClibc,waweber/uclibc-clang,foss-for-synopsys-dwc-arc-processors/uClibc,brgl/uclibc-ng,hwoarang/uClibc,waweber/uclibc-clang,wbx-github/uclibc-ng,brgl/uclibc-ng,hwoarang/uClibc,foss-xtensa/uClibc,mephi42/uClibc,hjl-tools/uClibc,groundwater/uClibc,ffainelli/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,brgl/uclibc-ng,hjl-tools/uClibc,brgl/uclibc-ng,majek/uclibc-vx32,waweber/uclibc-clang,ffainelli/uClibc,ffainelli/uClibc,ffainelli/uClibc,kraj/uClibc,wbx-github/uclibc-ng,wbx-github/uclibc-ng,foss-xtensa/uClibc,ffainelli/uClibc,wbx-github/uclibc-ng,kraj/uclibc-ng,ddcc/klee-uclibc-0.9.33.2,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,mephi42/uClibc,kraj/uClibc,mephi42/uClibc,hwoarang/uClibc,waweber/uclibc-clang,majek/uclibc-vx32,hjl-tools/uClibc,majek/uclibc-vx32,groundwater/uClibc,hjl-tools/uClibc,hjl-tools/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,ddcc/klee-uclibc-0.9.33.2,kraj/uClibc,majek/uclibc-vx32,foss-xtensa/uClibc