Enhance the MET compilation script and its documentation

[jprestop]

Enhance the compilation script and its documentation.

Describe the Enhancement

• DONE - Remove --enable-modis from configure when COMPILE_HDF = 0 and COMPILE_HDFEOS=0 (need to account for when using an existing build of HDF and HDFEOS and not compiling)
• DONE - Create defaults for default BUFRLIB_NAME and GRIB2CLIB_NAME
• DONE - Changes George suggested in Slack
  ** cp include/*.h ${LIB_DIR}/include/. : line 443 you could remove the . at the end. The copy fails if you already instealled HDFEOS and you try to rerun the script. The 2nd time the files weren't overwritten in $LIB_DIR/include.
  ** Line 667: You could change to: if [ "${SET_D64BIT}" == "TRUE" ]; then; There were no quotes around ${SET_D64BIT} so if that is unset accidentally, it would evaluate to "" and fail the if test. Without it, you get a unary operator error; That could be applied to other checks for environment variables that may not be set by the user
  **CLARIFIED IN DOCUMENTATION UPDATES - in the example install_met_env.kiowa file, I suggest commenting out the 2nd section of variables and change the comment to say uncomment if you have already compiled these. I was being hasty and didn't read the comment, so it skipped all of those and failed.
• DONE - Add syntax to check if path exists (eliminating extra colons) when adding to, for example, LDFLAGS
  **export PATH=/usr/local/anaconda3/bin${PATH:+:$PATH}
  **export PYTHONPATH=${PYTHONPATH:+$PYTHONPATH:}${HOME}/git/ConfigMaster
• DONE - Add LIBPNG_LIB to LDFLAGS (and potentially other libs) (this fixed Logan's MRMS problem on WCOSS)
• DONE - Add option for --bindir call to MET
• DONE - Improve documentation for script based on changes above which will simplify a recalling of the script
• CLARIFIED IN DOCUMENTATION - Add comments for each var to the install_env_.conf files or just to the generic file
• DONE - "python --version" should really be "${MET_PYTHON}/bin/python --version"
• DONE - Add check for GNU version 10. If 10 or greater, have ‘-fallow-argument-mismatch' in BUFRLIB compilation. If less than 10, have ‘-Wno-argument-mismatch'' in BUFRLIB compilation.

Time Estimate

Estimate the amount of work required here.
1 - 3 days of work.

Sub-Issues

Consider breaking the enhancement down into sub-issues.

• Add a checkbox for each sub-issue here.

Relevant Deadlines

List relevant project deadlines here or state NONE.

Funding Source

Split 2771021 AF and 2700042 WPC

Define the Metadata

Assignee

• Select engineer(s) or no engineer required (Julie Prestopnik)
• Select scientist(s) or no scientist required

Labels

• Select component(s)
• Select priority
• Select requestor(s)

Projects and Milestone

• Review projects and select relevant Repository and Organization ones
• Select milestone

Define Related Issue(s)

Consider the impact to the other METplus components.

• METplus, MET, METdb, METviewer, METexpress, METcalcpy, METplotpy

Enhancement Checklist

See the METplus Workflow for details.

• Complete the issue definition above.
• Fork this repository or create a branch of develop.
  Branch name: feature_<Issue Number>_<Description>
• Complete the development and test your changes.
• Add/update unit tests.
• Add/update documentation.
• Push local changes to GitHub.
• Submit a pull request to merge into develop.
  Pull request: feature <Issue Number> <Description>
• Iterate until the reviewer(s) accept and merge your changes.
• Delete your fork or branch.
• Close this issue.

[jprestop]

Added ability for MET_GSL to be read in and have GSL compiled if MET_GSL is not set.