Merge pull request #7272 from Goober5000/more_fred_fixes #2371

Job	Run time
Linux (Debug, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	3m 13s
Linux (Release, clang-16)	17m 24s
Linux (Release, gcc-9)	15m 3s
Linux (Debug, gcc-9)	14m 25s
Linux (Debug, gcc-13)	11m 3s
Linux (Debug, clang-16)	10m 20s
Linux (Release, gcc-13)	9m 14s
Linux (Release, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	7m 40s
	1h 28m 22s

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