Hi guix, While testing a patch re-introducing %build-inputs when cross-compiling (probably irrelevant to the build failure though), I encountered an ICE (internal compiler error). I checked 'dmesg'; it is not an OOM. I believe I encountered similar errors in the past, though they disappeared when I retried the build, so this looks like a non-determenistic build failure. Greetings, Maxime g++ -fno-PIE -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -I. -I. -I../../gcc-10.3.0/gcc -I../../gcc-10.3.0/gcc/. -I../../gcc-10.3.0/gcc/../include -I../../gcc-10.3.0/gcc/../libcpp/include -I../../gcc-10.3.0/gcc/../libdecnumber -I../../gcc-10.3.0/gcc/../libdecnumber/dpd -I../libdecnumber -I../../gcc- 10.3.0/gcc/../libbacktrace -o tree-ssa-strlen.o -MT tree-ssa-strlen.o -MMD -MP -MF ./.deps/tree-ssa-strlen.TPo ../../gcc-10.3.0/gcc/tree-ssa-strlen.c g++ -fno-PIE -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -I. -I. -I../../gcc-10.3.0/gcc -I../../gcc-10.3.0/gcc/. -I../../gcc-10.3.0/gcc/../include -I../../gcc-10.3.0/gcc/../libcpp/include -I../../gcc-10.3.0/gcc/../libdecnumber -I../../gcc-10.3.0/gcc/../libdecnumber/dpd -I../libdecnumber -I../../gcc- 10.3.0/gcc/../libbacktrace -o tree-ssa-structalias.o -MT tree-ssa-structalias.o -MMD -MP -MF ./.deps/tree-ssa-structalias.TPo ../../gcc-10.3.0/gcc/tree-ssa-structalias.c during RTL pass: vartrack ../../gcc-10.3.0/gcc/tree-ssa-strlen.c: In function ‘void maybe_warn_overflow(gimple*, tree, const vr_values*, strinfo*, bool, bool)’: ../../gcc-10.3.0/gcc/tree-ssa-strlen.c:2336:1: internal compiler error: Segmentation fault 2336 | } | ^ Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[2]: *** [Makefile:1117: tree-ssa-strlen.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[2]: Leaving directory '/tmp/guix-build-gcc-cross-sans-libc-aarch64-linux-gnu-10.3.0.drv-0/build/gcc' make[1]: *** [Makefile:4372: all-gcc] Error 2 make[1]: Leaving directory '/tmp/guix-build-gcc-cross-sans-libc-aarch64-linux-gnu-10.3.0.drv-0/build' make: *** [Makefile:939: all] Error 2 error: in phase 'build': uncaught exception: %exception #<&invoke-error program: "make" arguments: ("-j" "4" "CFLAGS=-g0 -O2") exit-status: 2 term-signal: #f stop-signal: #f> phase `build' failed after 644.1 seconds command "make" "-j" "4" "CFLAGS=-g0 -O2" failed with status 2 builder for `/gnu/store/j7qm4fhxbm85jg0nzhqm0h0bfc8gdlkx-gcc-cross-sans-libc-aarch64-linux-gnu-10.3.0.drv' failed with exit code 1 build of /gnu/store/j7qm4fhxbm85jg0nzhqm0h0bfc8gdlkx-gcc-cross-sans-libc-aarch64-linux-gnu-10.3.0.drv failed View build log at '/var/log/guix/drvs/j7/qm4fhxbm85jg0nzhqm0h0bfc8gdlkx-gcc-cross-sans-libc-aarch64-linux-gnu-10.3.0.drv.bz2'. cannot build derivation `/gnu/store/96m9gb9dsxd6adpgfyds86ndnxhf2rw9-glibc-cross-aarch64-linux-gnu-2.33.drv': 1 dependencies couldn't be built building /gnu/store/5n3y8gy3w924xm5zv1v65fz7lga8hs2d-pkg-config-aarch64-linux-gnu-0.29.2.drv... cannot build derivation `/gnu/store/nzb1jx1xvp4vsh9qgbq455m1fvnj2vsn-grep-3.6.drv': 1 dependencies couldn't be built guix build: error: build of `/gnu/store/nzb1jx1xvp4vsh9qgbq455m1fvnj2vsn-grep-3.6.drv' failed