This is what I came up with: 1) one can check if the bug is present in a compiled library by running the following test
#include <hdf5.h> int main() { return !(H5Tget_order(H5T_NATIVE_DOUBLE) == H5Tget_order(H5T_NATIVE_LDOUBLE)); } $ ./test_broken || echo fail fail 2) a simple but temporary fix is to change the following line of src/Makefile.am H5detect_CFLAGS = -O0 $(AM_CFLAGS) I hope this will help. I have no idea what the developers want to do. Thanks, Andrea On 4 September 2013 15:30, Sylvestre Ledru <sylves...@debian.org> wrote: > Hello, > > > On 04/09/2013 02:51, Andrea Bedini wrote: > > Hi, > > > > it's too hard to figure out how to send a proper bug report :) I'll > > just write an email. > > > > It seems that on some architectures hdf5 has issues when compiled with > > gcc 4.8.0 and newer compilers. > > > Ouch. Thanks for investigating it. Let me know when you have a patch we > can apply. > > Thanks, > Sylvestre > > -- Andrea Bedini <andrea.bed...@gmail.com>