NGX_GOOGLE_PERFTOOLS=NONGX_CPP_TEST=NONGX_LIBATOMIC=NONGX_CPU_CACHE_LINE=opt=for optiondo
a part of file is like that: NGX_GOOGLE_PERFTOOLS=NONGX_CPP_TEST=NONGX_LIBATOMIC=NONGX_CPU_CACHE_LINE=opt=for optiondoI want to know where and when did the variable of option in the file of auto/options created.