Thanks for getting back to me so quickly, Dmitry. You are indeed correct: There is a libc.a on the system where it build under newlib: gcc/build-accel/nvptx-none/newlib/libc.a So, I need to figure out why my newlib did not built. Thanks so much for this very good pointer! Gabriele From: Dmitry Mikushin <dmitry@xxxxxxxxxxxxx> Date: Wednesday, October 3, 2018 at 5:00 PM To: "Jost, Gabriele (ARC-TNC)[Supersmith]" <gabriele.jost@xxxxxxxx> Cc: "gcc-help@xxxxxxxxxxx" <gcc-help@xxxxxxxxxxx>, GCC <gcc@xxxxxxxxxxx> Subject: Re: gcc 8.1 + libc.a First of, "error opening libc.a" message looks highly unusual. It's not the way ld typically complains about a missing library or wrong architecture. More likely, here it is rather some gcc-internal lib.a to be deployed in some special way, but was missing. I would try two things: 1) Re-iterate the failing conftest manually, appending -v option to show what underlying ld command is being executed 2) Search for libc.a in the gcc build tree on another server, where the build was successful. Good luck, - Dmitry. On Thu, Oct 4, 2018, 02:32 Jost, Gabriele (ARC-TNC)[Supersmith] via gcc <gcc@xxxxxxxxxxx<mailto:gcc@xxxxxxxxxxx>> wrote: Hello, I have successfully installed gcc 8.1 on one system. I had to build the accelerator on the front end, because the compute nodes did not have libc.a. The build process seems to require a libc.a. I am now struggling with trying to install it on a different system: Same concept, front end has libc.a, compute nodes don’t. But now I can’t even build the build the accelerator compiler, because of of the missing libc.a. But it lives in /usr/lib64, just like on the other system. Would you have any advise how I can get around this? Thanks in advance, Gabriele configure:3016: /nobackup/gcc_nvptx/gcc/build-accel/./gcc/xgcc -B/nobackup//gcc_nvptx/gcc/build-accel/./gcc/ -B/nobackup/gcc-8.1.0-install/nvptx-none/bin/ -B/nobackup/gcc-8.1.0-install/nvptx-none/lib/ -isystem /nobackup/gcc-8.1.0-install/nvptx-none/include -isystem /nobackup/gcc-8.1.0-install/nvptx-none/sys-include -g -O2 conftest.c -lc >&5 error opening libc.a collect2: error: ld returned 1 exit status configure:3020: $? = 1 configure:3057: result: configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "package-unused" | #define PACKAGE_TARNAME "libbacktrace" | #define PACKAGE_VERSION "version-unused" | #define PACKAGE_STRING "package-unused version-unused" | #define PACKAGE_BUGREPORT "" | #define PACKAGE_URL "" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | }
