[FFmpeg-devel] [PATCH] configure: Change _cflags_noopt for MSVC to -Od

[Thomson Tan]

I built the latest FFmpeg with WSL2+MSVC on Windows. Tried configure with
--disable-optimizations, but still got an optimized build which makes it
hard to set breakpoint on hot functions (likely inlined).

On Mon, Dec 12, 2022 at 12:49 PM Carl Eugen Hoyos <ceffmpeg at gmail.com>
wrote:

> Am Mo., 12. Dez. 2022 um 19:30 Uhr schrieb <lilotom at gmail.com>:
> >
> > Currently -O1 is set to _cflags_noopt, but -O1 is actually for size
> > optimization instead of no-opt which causes size optimized binaries
> > been built with --disable-optimizations.
> >
> > Signed-off-by: Thomson Tan <lilotom at gmail.com>
> > ---
> >  configure | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/configure b/configure
> > index f4eedfc207..388d518345 100755
> > --- a/configure
> > +++ b/configure
> > @@ -4825,7 +4825,7 @@ probe_cc(){
> >          _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
> >          _cflags_speed="-O2"
> >          _cflags_size="-O1"
> > -        _cflags_noopt="-O1"
> > +        _cflags_noopt="-Od"
>
> I am curious:
> How did you test this patch?
>
> Thank you, Carl Eugen
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