MSYS2 gcc fatal error in cc1.exe: cygheap base mismatch detected
问题 This particular error has come up in multiple other contexts on Stack Overflow, typically regarding Cygwin or git (and involving other executables). I have not seen this in the context of MSYS2 and I am not sure how to address it. This is happening on a brand new install of MSYS2 using pacman -S gcc which installs gcc version 9.3.0. When I go to run my makefile, this is the error that comes up: 0 [main] cc1 (2724) C:\msys64_close\usr\lib\gcc\x86_64-pc-msys\9.3.0\cc1.exe: *** fatal error -