https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85422
Tom de Vries <vries at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tschwinge at gcc dot gnu.org --- Comment #7 from Tom de Vries <vries at gcc dot gnu.org> --- (In reply to Richard Biener from comment #3) > flags? A simple ./xgcc -fopenacc doesn't reproduce it. With my GCC 7 > install I see > > lto-wrapper: fatal error: problem with building target image for nvptx-none > > but no way to see the lto1 invocations :/ (tried -Wl,-debug -Wl,-v already) I ran into the same problem when trying to use an installed compiler. Fixed by adding -B options for: - the dir containing accel/nvptx-none/mkoffload - the dir containing the offload gcc (in my case, x86_64-pc-linux-gnu-accel-nvptx-none-gcc) So: ... $ ./install/bin/x86_64-pc-linux-gnu-gcc \ -fopenacc \ src/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85422.c \ -B $(pwd -P)/install/offload-nvptx-none/bin \ -B $(pwd -P)/install/offload-nvptx-none/libexec/gcc/x86_64-pc-linux-gnu/8.0.1 ... The error message could certainly be be better.