https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90443
Bug ID: 90443 Summary: -flto=n on Windows results in CreateProcess: No such file or directory Product: gcc Version: 9.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: driver Assignee: unassigned at gcc dot gnu.org Reporter: hoganmeier at gmail dot com Target Milestone: --- Just using a dummy source: extern "C" void _start() {} $ arm-none-eabi-g++ -O3 -flto=2 main.cpp -nostdlib -o firmware.elf -v lto-wrapper.exe: fatal error: CreateProcess: No such file or directory Very unhelpful. -v lifts the curtain: make -f Temp\ccwaSVX1.mk -j2 all lto-wrapper.exe: fatal error: CreateProcess: No such file or directory There is no make, esp. in arm-gcc distributions. The error message should be improved.