https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60898
--- Comment #21 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > patch fixing comment #7 This patch breaks bootstrap: /bin/sh ./libtool --tag=FC --mode=compile /opt/gcc/p_build/./gcc/gfortran -B/opt/gcc/p_build/./gcc/ -B/opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/bin/ -B/opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/lib/ -isystem /opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/include -isystem /opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/sys-include -L. -Wall -L../libgfortran -c -o openacc.lo ../../../p_work/libgomp/openacc.f90 libtool: compile: /opt/gcc/p_build/./gcc/gfortran -B/opt/gcc/p_build/./gcc/ -B/opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/bin/ -B/opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/lib/ -isystem /opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/include -isystem /opt/gcc/gcc4.10p-220715p2/x86_64-apple-darwin14.1.0/sys-include -L. -Wall -L../libgfortran -c ../../../p_work/libgomp/openacc.f90 -fno-common -o .libs/openacc.o f951: internal compiler error: Segmentation fault: 11 and seems to break almost all the fortran tests in the test suite (gfortran simply updated instead of a clean bootstrap).