http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48015
--- Comment #2 from Erik Schnetter <schnetter at gmail dot com> 2011-03-07 15:14:00 UTC --- Created attachment 23570 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23570 Same source code preprocessed with gcc 4.5.2 If I use gcc 4.5.2: $ g++-mp-4.5 --version g++-mp-4.5 (GCC) 4.5.2 things work fine. I added an attachment containing the same original source code preprocessed with gcc 4.5.2 (as "data-gcc45.ii.bz2"). If I compile this preprocessed source code with: $ g++-mp-4.5 -fopenmp -Wall -g3 -m128bit-long-double -march=native -std=gnu++0x -fbounds-check -fstack-protector-all -ftrapv -O0 -fopenmp -Wall -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Woverloaded-virtual -c data-gcc45.ii I see no screen output, and the object file is produced fine.