It seems that autoconf always adds -O2 to its build lines. I have a
compiler that generates bad code for a particular program when built
with -O2, so I'd like to turn that flag off. I can use AM_CFLAGS to
_add_ flags like -O0, but that gets subbed in _before_ the default flags
so -O2 overrides my -O0.
I'd rather not completely override autoconf's CFLAGS. I trust it to
pick good defaults mostly, I'd just like to have the ability to remove
particular subsets of its defaults.
I guess I could do some hackery like this:
MY_CFLAGS=`echo $CFLAGS | tr " " \012 | while read line
if test x"$line" != "x-O2"
then
echo -n "$line "
fi
done`
CFLAGS=$MY_CFLAGS
That's pretty ugly, but if it's the only way...
On this note, is there a standard way to get autoconf to let you build
"release" and "debug" versions of a program? Right now I'm rolling my
own mechanism with a custom AC_ARG_ENABLE to turn on and off CFLAGS and
LFLAGS.
--
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=
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