Steps to reproduce

When spack finds an external gmake package in a macOS homebrew installation, it wants to use that one but can’t find /usr/local/bin/make (because homebrew leaves it as gmake). Poking around in the spack code I see that the spack install of gmake creates a symlink from gmake to make after installation, but of course it doesn’t do that for external packages.

I noticed that the concretizer output for an older (December 2022) spack doesn’t contain a gmake package at all, assuming therefore that spack always called make under the assumption that whatever is in the search path works? Meanwhile, the current spack version makes gmake an explicit dependence but then trips over the non-existent in /usr/local/bin/make.

Error message

Errors are therefore something like /usr/local/bin/make - no such file or directory

Information on your system

* **Spack:** 0.20.0.dev0 (ce81f15e6f7390953e0035ada5c0399da0c4e44b)
* **Python:** 3.10.8
* **Platform:** darwin-ventura-skylake
* **Concretizer:** clingo

General information

• I have run spack debug report and reported the version of Spack/Python/Platform
• I have searched the issues of this repo and believe this is not a duplicate
• I have run the failing commands in debug mode and reported the output