-O3 deemed uncessary
I do not see the real point in forcing all compilation with -O3 and it makes overriding the optimization level overly complicated. Let people choose the level they want.
Updated by roberto (Ollivier Robert) about 10 years ago
There are not that many differences between -O2 and -O3 (mainly -finline-functions IIRC) so I'm a bit surprised there. Anyway, I'd remove any "default" level to let people choose except for -O. The main problem is that if I do "CFLAGS=-O2 ./configure", it is end up with "-O -O3" (which is really -O3). Either add a "--cflags" parameter to "configure.in" or remove -O3 altogether. Your way of specifying optflags is correct of course but violates POLA in my book. Best regards.