avoid warning about unused variable
avoid warning about unused variable

If LDSO_SEARCH_INTERP_PATH is off then ptmp wasn't used.

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

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