Bug#851050: src:gli: CMake detection fails on !x64

[Ghislain Antony Vaillant]

Package: src:gli
Severity: important

Dear Maintainer,

CMake detection of gli fails on non 64-bit platforms [1].

Any attempt to call `find_package(gli REQUIRED)` produces the following
error:

```
Could not find a configuration file for package "glm" that is
compatible with requested version "".

The following configuration files were considered but not accepted:

/usr/lib/cmake/glm/glmConfig.cmake, version: 0.9.8 (64bit)
```

[1] https://tests.reproducible-builds.org/debian/rb-pkg/unstable/i386/gli.html

Ghis


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (900, 'testing'), (300, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)