January 14, 2023
I was checking something in Erastus' Makefile when I noticed an error:
CLAGS=-std=c99 -Wall -O3
LDFLAGS=-lm
That’s supposed to be CFLAGS. But… doesn’t that mean the -O3 (optimize)
flag was never used?
Before:
[richard@gliderii src]$ ./benchmark
Playing games...
..........
State_act: 0.614969
Renames CLAGS to CFLAGS…
[richard@gliderii src]$ ./benchmark
Playing games...
..........
State_act: 0.276077
…oh. That more than doubles the speed. Throughout the whole bulk of development, Erastus was running at half speed. Oops.
Or maybe: yay! I doubled the speed of my program by pressing one key.
I’m sure in the history of software development there’s been far worse consequences for missing a single character, but this ranks pretty high for me personally. Live and learn, and maybe look into linters for Makefiles.
Update the next day: Twist! Looks like adding -O3 breaks something. I’d track it down right away, but I’m deep in the next game AI at the moment. I’ll update again when I get around to it.