Ben Gamari authored Oct 22, 2019 and Marge Bot committed Oct 23, 2019

Previously the make build system would pass things like
`-optl-optl-Wl,-x -optl-optl-Wl,noexecstack` to GHC. This would
naturally result in mass confusion as GHC would pass `-optl-Wl,-x` to
GCC. GCC would in turn interpret this as `-o ptl-Wl,-x`, setting the
output pass of the invocation.

The problem that `-optl` was added to the command-line in two places in
the build system. Fix this.

Fixes #17385.