Nathan Cooprider wrote:
Russell Shaw wrote:
What are you trying to do? Any autoconf package can be set for -02 with:
./configure CFLAGS="-g -O2"
I am using avr-gcc as part of the TinyOS package, along with a bunch of
other non-TinyOS tools. The non-TinyOS tools do something to the TinyOS
applications so that they compile fine with avr-gcc -O, but then break
with -Os or -O2. My understanding is that -O2 is just -O with some extra
command options. I looked through the manual and found what options
those were, but adding them to -O did not trigger the error. So I was at
a loss.
Which manual did you look at?
Look under "Optimize Options" in "info gcc".
Unfortunately, I believe I am stuck using an older version of gcc. Which
sort of makes my problem irrelevant for this list. Also, I probably just
have to look at the actual command line options in the source and find
out which ones -O turns on and which ones -O2 turns on. Anyway, thanks
for the concern.
The individual options are listed under the section "Optimize Options"
in "info gcc".
More specifically, i'm currently looking at: File: gcc-4.0.info,
"3.10 Options That Control Optimization". Your gcc may have a different
section number.
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