nptl: handle PTHREADS_DEBUG_SUPPORT properly
nptl: handle PTHREADS_DEBUG_SUPPORT properly

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

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