[Qemu-devel] Solution and question: fix for OSX Lion build

[Juan Pineda]

Solution: Qemu 0.15 won't run under OS-X Lion because Apple switched to gcc 
LLVM. Actually it will build, but throws a segment fault when run. The cure is 
to build using gcc-4.2 (which is included under Lion.) Additionally darwin-user 
and bsd-user fail to compile. I gather these have been broken for a while now. 
In all, the following command line is required to successfully build and run 
qemu for OS-X Lion:

> ./configure --cc=gcc-4.2 --host-cc=gcc-4.2 --disable-darwin-user 
> --disable-bsd-user

With this configuration I was able to run the test Linux boot images for i386, 
x86_64, sparc32, and coldfire.

Question: In the interest of saving others the pain of debugging this again, I 
though I'd submit a patch. I'm thinking the best fix is to modify the configure 
script to 1) check for the OS revision and availability of gcc-4.2 and then set 
the default compiler to gcc-4.2, and 2) disable the user builds under OSX. 
Sound good? Or is there a more preferred way to fix?

Thanks!
-Juan