Remove unused signal module

This might not make things work on macOS (we don't seem to be using the functionality in ICON anyway) but at least this should leave no undefined symbols in the library:

Undefined symbols for architecture arm64:
  "_fedisableexcept", referenced from:
      _signal_trap in util_signal.c.o
  "_feenableexcept", referenced from:
      _signal_trap in util_signal.c.o
ld: symbol(s) not found for architecture arm64

And I don't think that it would be different for an Intel-based Mac.

This was also something confusing to me. This code does not work on my Macbook. But it was copied directly from the ICON main repo, so I thought it was a version problem and might work on some MacOS systems. If it is a dead code, maybe we can remove the whole thing (the part for MacOS)?

assigned to @b382190

The subroutine is still used in the main programs of DACE. See https://gitlab.dkrz.de/dwd-sw/dace-icon-interface/-/issues/3

added 1 commit

• 13c32569 - Resolve unused signal code for MAC OS

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added 1 commit

• 9912bf4a - Remove mo_util_signal

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added 34 commits

• 9912bf4a...3eec3353 - 31 commits from branch master
• b155d54e - Avoid unresolved symbols on macOS
• eb4b391e - Resolve unused signal code for MAC OS
• 48e3eb3b - Remove mo_util_signal

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resolved all threads

changed title from Avoid unresolved symbols on macOS to Remove unused signal module

merged

mentioned in commit faf85bc7

mentioned in merge request !60 (closed)