cast buf as void* to fix warning
cast buf as void* to fix warning

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