> can isl-0.15 be built with 4.8 and 4.9? ..with an old libc? isl-0.15 builds for me with gcc 4.6.4, 4.7.4, 4.8.3, 4.9.2, not sure about older libc.
I can't find any reference to max_align_t in the isl-0.15 source. (for me actually also isl-0.14 builds fine down to gcc 4.6). Maybe somebody with an older toolchain could test ?