Update iv (HAVE_SYS_SELECT_H does not get defined for Mac builds)

[nrnhines]

Closes #2528

[azure-pipelines]

✔️ 2ef20a6 -> Azure artifacts URL

[azure-pipelines]

✔️ 3eb6222 -> Azure artifacts URL

[azure-pipelines]

✔️ f0ffb7b -> Azure artifacts URL

[codecov]

Codecov Report

Merging #2529 (f0ffb7b) into master (b4fdb4c) will decrease coverage by 0.01%.
Report is 2 commits behind head on master.
The diff coverage is n/a.

❗ Current head f0ffb7b differs from pull request most recent head 08d4373. Consider uploading reports for the commit 08d4373 to get more accurate results

@@            Coverage Diff             @@
##           master    #2529      +/-   ##
==========================================
- Coverage   61.48%   61.48%   -0.01%     
==========================================
  Files         623      623              
  Lines      119146   119152       +6     
==========================================
- Hits        73261    73259       -2     
- Misses      45885    45893       +8     

see 5 files with indirect coverage changes

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[azure-pipelines]

✔️ 08d4373 -> Azure artifacts URL

[bbpbuildbot]

Logfiles from GitLab pipeline #156153 (:white_check_mark:) have been uploaded here!

Status and direct links:

• ✅ mac_m1_cmake_build: [cmake, ON, OFF, OFF, address]
• ✅ spack_setup
• ✅ build:nmodl
• ✅ build:neuron:nmodl:intel:legacy
• ✅ build:neuron:nmodl:intel:shared
• ✅ build:neuron:nmodl:nvhpc:acc:legacy
• ✅ build:neuron:nmodl:nvhpc:acc:shared
• ✅ build:neuron:nmodl:nvhpc:omp:legacy
• ✅ build:neuron:nmodl:nvhpc:omp
• ✅ test:neuron:nmodl:intel:legacy
• ✅ test:neuron:nmodl:intel:shared
• ✅ test:neuron:nmodl:nvhpc:acc:legacy
• ✅ test:neuron:nmodl:nvhpc:acc:shared
• ✅ test:neuron:nmodl:nvhpc:omp:legacy
• ✅ test:neuron:nmodl:nvhpc:omp