Introducing the 'makelmdz' (bash) script.
It uses the same 'arch' files as the 'makelmdz_fcm' script but with the same (not-quite-perfect-but-there-is-always-room-for-improvements) strategy as the 'makegcm (csh) script: if necessary, a Makefile is generated using the 'create_make_gcm' script, and the makefile is then run to build the executable.
Run 'makelmdz -h' for a list of options and default behaviours (which are essentially the same as those of the 'makegcm' and 'makelmd_fcm' scripts).
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