Linuxbrew linking fails with incompatible i386 files already on machine

[kod4krome]

I'm hitting this error with anything I have tried to install.

ld: i386 architecture of input file '/lib/crti.o' is incompatible with i386:x86-64 output
ld: i386 architecture of input file '/lib/crtn.o' is incompatible with i386:x86-64 output

The machine is running redhat and devops has installed newer versions of programs/components in non-standard locations. I only have user level access

I forced homebrew to use non-standard locations of curl and git, but I do not know how to point to a newer version of gcc or tell it to add options to the linker to handle the older (glibc?) files.

Any help greatly appreciated. Thanks

[danielnachun]

Have you run brew post-install gcc@5? It should copy the correct crt files from wherever the host GCC is located into the right directory within $HOMEBREW/.linuxbrew.

[kod4krome]

Unfortunately I may need a lot of hand-holding here.

brew post-install gcc@5
Error: Unknown command: post-install

[danielnachun]

Shoot, it's brew postinstall. Sorry!