Hello, On the following documentation page, it says "-O also turns on -fomit-frame-pointer on machines where doing so does not interfere with debugging.". It also says "-O2 turns on all optimization flags specified by -O.". Is "-fomit-frame-pointer" always turned on when you use "-O2", or does the same condition of "-O" apply when you use "-O2"? http://gcc.gnu.org/onlinedocs/gcc-3.3.2/gcc/Optimize-Options.html#Optimize%2 0Options Thanks, ============================== Nathan Van Eps