2008/5/20 Don Stewart
Probably compiling with -fvia-C could help even more, but strangely:
[roxas:~/Desktop/test2/MyMD5] kirby% ghc -fvia-C -funbox-strict-fields -O2 --make md5sum.hs [roxas:~/Desktop/test2/MyMD5] kirby% time ./md5sum ../../jboss-4.2.2.GA.zip Segmentation fault
Is this supposed to happen? There're no "unsafe" functions or imports used in the program. Maybe a bug in GHC?
That could be a gcc bug, in fact. Can you provide the final source? Does changing the gcc optimisation level help? (i.e. -fvia-C -optc-O2 )
I tried with and without gcc optimizations, but it always segfaults. It happened to me even before my optimizations. I've got GHC 6.8.2 on Mac OS X 10.5.2, GCC 4.0.1. -fvia-C works well for other libraries and applications, so I don't think it's a problem of my specific setting. Salvatore