On Mon, Apr 15, 2013 at 02:37:27PM -0600, James Eder wrote: > As many of you no doubt know, GCC recently released 4.8.0. This new > version introduces a new optimization level enabled by -Og with the > following description (from the man page): > > "Optimize debugging experience. -Og enables optimizations that do not > interfere with debugging. It should be the optimization level of choice for > the standard edit-compile-debug cycle, offering a reasonable level of > optimization while maintaining fast compilation and a good debugging > experience." > > Of course I had to try it out. I found that building Wine lead to GCC > dieing with > > ... dlls/kernel32/console.c:1691:1: internal compiler error: Segmentation > fault > > I also found > > ... dlls/kernel32/computername.c:701:1: internal compiler error: > Segmentation fault > > I eventually stumbled my way into the enclosed patch which lets GCC build > Wine with -Og. > > I'm not sure if this change (or something similar) makes sense for Wine. > I'm fairly certain some changes make sense for GCC (I suspect that GCC > should not segfault). > > I haven't submitted a bug for GCC because I suspect they'll want me to > provide something simpler to compile than the Wine source tree. I > certainly won't be upset if someone beats me too it. I'm not sure how much > time in the near future I'll spend on it. "Eventually" is probably the > word that fits. > > At any rate, I wanted to at least share my experiences in case anyone is > interested in heading down the same path.
You copy and paste the failing commandline and add --save-temps, like e.g.: gcc -c -I/home/marcus/projects/wine/dlls/kernel32 -I. -I/home/marcus/projects/wine/include -I../../include -D__WINESRC__ -D_KERNEL32_ -D_NORMALIZE_ -D_REENTRANT -fPIC -Wall -pipe -fno-strict-aliasing -Wdeclaration-after-statement -Wempty-body -Wignored-qualifiers -Wstrict-prototypes -Wtype-limits -Wunused-but-set-parameter -Wwrite-strings -gdwarf-2 -gstrict-dwarf -Wpointer-arith -Wlogical-op -I/usr/include/freetype2 -Wall -g -fstack-protector -o console.o /home/marcus/projects/wine/dlls/kernel32/console.c -Og --save-temps it will generate a console.i file in the currenct directory. The console.i file and above commandline are a start for the gcc bug. Ciao, Marcus