fix warning using glibc method
fix warning using glibc method

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