The vfork system call on powerpc seems to be completely broken.  Use fork instead, per glibc behavior.
The vfork system call on powerpc seems to be completely
broken.  Use fork instead, per glibc behavior.

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