https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106034
--- Comment #1 from seurer at gcc dot gnu.org --- There are some more errors further along in the test case that appear related: spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-ieee-bootstrap/gcc/testsuite/g++/../../xg++ -B/home/seurer/gcc/git/build/gcc-ieee-bootstrap/gcc/testsuite/g++/../../ /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_c.C -fdiagnostics-plain-output -nostdinc++ -I/home/seurer/gcc/git/build/gcc-ieee-bootstrap/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/powerpc64le-unknown-linux-gnu -I/home/seurer/gcc/git/build/gcc-ieee-bootstrap/powerpc64le-unknown-linux-gnu/libstdc++-v3/include -I/home/seurer/gcc/git/gcc-ieee-bootstrap/libstdc++-v3/libsupc++ -I/home/seurer/gcc/git/gcc-ieee-bootstrap/libstdc++-v3/include/backward -I/home/seurer/gcc/git/gcc-ieee-bootstrap/libstdc++-v3/testsuite/util -fmessage-length=0 -std=c++2a -pedantic-errors -Wno-long-long -fmodules-ts -S -o binding-1_c.s^M In module imported at /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_c.C:6:1:^M /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: error: failed to read compiled module: No such file or directory^M /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: note: compiled module file is 'gcm.cache/./home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H.gcm'^M /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: note: imports must be built before being imported^M /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: fatal error: returning to the gate for a mechanical issue^M compilation terminated.^M compiler exited with status 1 FAIL: g++.dg/modules/binding-1_c.C -std=c++2a (test for excess errors) Excess errors: /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: error: failed to read compiled module: No such file or directory /home/seurer/gcc/git/gcc-ieee-bootstrap/gcc/testsuite/g++.dg/modules/binding-1_a.H: fatal error: returning to the gate for a mechanical issue compilation terminated.