add GNU extension for select timeouts where the sub-second field is actually longer than one second
add GNU extension for select timeouts where the sub-second field is actually longer than one second

foss-xtensa/uClibc,majek/uclibc-vx32,ysat0/uClibc,hwoarang/uClibc,mephi42/uClibc,wbx-github/uclibc-ng,OpenInkpot-archive/iplinux-uclibc,gittup/uClibc,brgl/uclibc-ng,skristiansson/uClibc-or1k,gittup/uClibc,ysat0/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,gittup/uClibc,hwoarang/uClibc,czankel/xtensa-uclibc,hjl-tools/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,hwoarang/uClibc,atgreen/uClibc-moxie,czankel/xtensa-uclibc,groundwater/uClibc,foss-xtensa/uClibc,groundwater/uClibc,kraj/uClibc,brgl/uclibc-ng,kraj/uClibc,hwoarang/uClibc,kraj/uclibc-ng,m-labs/uclibc-lm32,majek/uclibc-vx32,groundwater/uClibc,waweber/uclibc-clang,waweber/uclibc-clang,OpenInkpot-archive/iplinux-uclibc,ndmsystems/uClibc,kraj/uClibc,ffainelli/uClibc,skristiansson/uClibc-or1k,skristiansson/uClibc-or1k,ffainelli/uClibc,kraj/uClibc,majek/uclibc-vx32,foss-xtensa/uClibc,hjl-tools/uClibc,waweber/uclibc-clang,ndmsystems/uClibc,ddcc/klee-uclibc-0.9.33.2,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,wbx-github/uclibc-ng,atgreen/uClibc-moxie,ysat0/uClibc,kraj/uclibc-ng,mephi42/uClibc,groundwater/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,atgreen/uClibc-moxie,m-labs/uclibc-lm32,mephi42/uClibc,ffainelli/uClibc,mephi42/uClibc,foss-xtensa/uClibc,waweber/uclibc-clang,atgreen/uClibc-moxie,majek/uclibc-vx32,brgl/uclibc-ng,hjl-tools/uClibc,skristiansson/uClibc-or1k,czankel/xtensa-uclibc,m-labs/uclibc-lm32,hjl-tools/uClibc,ffainelli/uClibc,ysat0/uClibc,ddcc/klee-uclibc-0.9.33.2,wbx-github/uclibc-ng,ddcc/klee-uclibc-0.9.33.2,gittup/uClibc,ndmsystems/uClibc,m-labs/uclibc-lm32,czankel/xtensa-uclibc,brgl/uclibc-ng,ffainelli/uClibc,hjl-tools/uClibc,wbx-github/uclibc-ng,kraj/uclibc-ng,groundwater/uClibc,OpenInkpot-archive/iplinux-uclibc,OpenInkpot-archive/iplinux-uclibc,ndmsystems/uClibc,ddcc/klee-uclibc-0.9.33.2