changeDictionary does not work for multiple regions (i. e. for chtMultiRegionFoam) on mingw cross compilation

Summary

based on what I see, only the last solid region in the regionProperties lists can be handled with changeDictionary. All other regions abort.

Steps to reproduce

run i. e. chtMultiRegionFoam\multiRegionHeater tutorial

What is the current bug behaviour?

changeDictionary sets the dictionaries correctly

What is the expected correct behavior?

changeDictionary aborts

Relevant logs and/or images

i.e. log.changeDictionary.leftSolid (unicode character 0x80 at the end):

...

Create mesh leftSolid for time = 0

fileName::stripInvalid() called for invalid fileName leftSolid For debug level (= 2) > 1 this is considered fatal

Environment information

• OpenFOAM version : tested v2212|v2206|v2112|v2106|v2012|v2006
• Operating system : Win 10
• Hardware info :
• Compiler :

changed the description

log.changeDictionary.leftSolid_

added bug community labels

@Prashant

workaround: omitting this loop / calling the regions one by one:

for region in $(foamListRegions) do runParallel $decompDict -s $region changeDictionary -region $region done

Yes, foamListRegions returns a list of regions and the newline character should be handled automatically by shell (strip out as necessary).

The script works normally on linux versions, but as you mentioned it might require some tweak on Windows version.

@Pawan - is there somewhere convenient in your packaging to add this type of setting?

# For mingw : output has CR-NL but bash shell only splits on newline
case "$WM_COMPILER" in 
(Mingw*)
    IFS=$'\t\r\n '  # bash-only syntax
    ;;
esac

@marco.mueller - we'll see if there is a good place to squeeze this into the mingw bits (I'd prefer not to pollute the regular OpenFOAM files with it). Either way, you can try it too.