From git commit 09cde86ef79908cfd0ddacf0d45dd1892b387e3a on OS X 10.6.8: make -f posix.mak dmd -m32 -c -d -o- -Isrc -Iimport -Hfimport/core/atomic.di src/core/atomic.d dmd -m32 -c -d -o- -Isrc -Iimport -Hfimport/core/bitop.di src/core/bitop.d dmd -m32 -c -d -o- -Isrc -Iimport -Hfimport/core/cpuid.di src/core/cpuid.d dmd -m32 -c -d -o- -Isrc -Iimport -Hfimport/core/demangle.di src/core/demangle.d make: *** [import/core/demangle.di] Bus error make: *** Deleting file `import/core/demangle.di'
I cannot reproduce this.