re: today's git does not compile

[Susan Cragin]

> Try switching from -O2 to -O1 with
>  configure CFLAGS="-g -O1"
> and rebuild.  Does that help?

Yes. That works.
> Regardless of whether that gets you past the problem,
> please file a bug in launchpad against gcc-4.5.
> Ideally they'd want you to run with -save-temps and give
> them a copy of pen.i.

https://bugs.launchpad.net/ubuntu/+source/gcc-4.5/+bug/704633
Here's the bug. 
I 
http://www.network-theory.co.uk/docs/gccintro/gccintro_36.html

Dan, I can't work the -save-temps option. All three give me "no input files."
/wine-git$ gcc -save-temps
/wine-git$ gcc -save-temps=cwd (or =obj) 
gcc: no input files

today's git does not compile

[Reece Dunn]

On 19 January 2011 12:41, Susan Cragin  wrote:
> Dan, I can't work the -save-temps option. All three give me "no input files."
> /wine-git$ gcc -save-temps
> /wine-git$ gcc -save-temps=cwd (or =obj)
> gcc: no input files

You need to run it with the command line given in your output in the
directory where it was run. That is:

cd /home/susan/wine/dlls/winex11.drv

gcc -save-temps -m32 -c -I. -I. -I../../include -I../../include
-D__WINESRC__  -D_REENTRANT -fPIC -Wall -pipe -fno-strict-aliasing
-Wdeclaration-after-statement -Wstrict-prototypes -Wtype-limits
-Wwrite-strings -Wpointer-arith -Wlogical-op  -g -O2 -U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE=0  -o pen.o pen.c

HTH,
- Reece

today's git does not compile

[Dan Kegel]

On Wed, Jan 19, 2011 at 4:46 AM, Reece Dunn  wrote:
> You need to run it with the command line given in your output in the
> directory where it was run. That is:
>
> cd /home/susan/wine/dlls/winex11.drv
>
> gcc -save-temps -m32 -c -I. -I. -I../../include -I../../include
> -D__WINESRC__  -D_REENTRANT -fPIC -Wall -pipe -fno-strict-aliasing
> -Wdeclaration-after-statement -Wstrict-prototypes -Wtype-limits
> -Wwrite-strings -Wpointer-arith -Wlogical-op  -g -O2 -U_FORTIFY_SOURCE
> -D_FORTIFY_SOURCE=0  -o pen.o pen.c

Perhaps more simply, you can do
  cd ~/wine-git
  ./configure CFLAGS="-O2 -save-temps"
  make
It should crash as usual, but this time you should see a pen.i file
laying around next to pen.o.
(Ignore the warnings about -pipe being ignored.)

Sadly, because of the way Wine generates its makefiles,
you can't just cd to dlls/winex11 yourself and do 'make pen.o',
it won't get the -save-temps option.

If you're not afraid of editing Makefiles, though, you can skip all the
above and do
 cd ~/wine-git/dlls/winex11
 vi Makefile   (and change -pipe to -save-temps)
 rm -f pen.o
 make pen.o
That's faster.
- Dan

today's git does not compile

[Dan Kegel]

Nicely done!  Thanks for taking the time to do the full-on gcc bug
report with .i file.

If at some point in the future you want to ascend to the next
level of gcc bug reporting awesomeness, read up
on delta debugging, an easy technique for automatically
reducing the .i file to (nearly) the smallest possible
input file that causes the crash.
http://en.wikipedia.org/wiki/Delta_Debugging

Or don't; it's an easy next step for the gcc professionals,
given what you gave them.
- Dan