[Bug bootstrap/50342] gcc/configure fails on Mac OS X Lion/Xcode 4.1 with recent GCCs

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50342

--- Comment #13 from Jack Howarth <howarth at nitro dot med.uc.edu> 2013-01-14 21:58:40 UTC ---
(In reply to comment #12)
> FYI, I recently ran into this issue as well building gcc 4.7.2 on MacOS 10.7.5
> with XCode 4.1 installed.
> 
> Configured via:
> ../gcc-4.7.2/configure --enable-languages=c,c++,fortran --enable-lto \
>   --program-suffix=-4.7 --enable-checking=release
> 
> This command will use Apple's gcc 4.2.1. Bootstrap fails due to an ICE (I
> believe during the glibc build). 
> 
> First setting:
> 
> export CC="gcc-4.4"
> export CXX="g++-4.4"
> 
> fails with the error described in this bug report, while including
> -D_FORTIFY_SOURCE=0 in the above exports allows gcc to bootstrap.

Make sure you have run 'make check' on the gmp build you installed. The earlier
gmp 5.0.x releases had issues with the change to the llvm-gcc compiler in Xcode
4.1. FYI, since you are on Lion, you can upgrade to Xcode 4.5.2 which provides
a very stable clang compiler as the system cc/cxx compiler.