Aurelien DARRAGON 3b4d2b7975 DEV: makefile: fix POSIX compatibility for "range" target ...

make "range" which was introduced with 06d34d4 ("DEV: makefile: add a
new "range" target to iteratively build all commits") does not work with
POSIX shells (namely: bourne shell), and will fail with this kind of
errors:

   |/bin/sh: 6: Syntax error: "(" unexpected (expecting ")")
   |make: *** [Makefile:1226: range] Error 2

This is because arrays and arithmetic expressions which are used for the
"range" target are not supported by sh (unlike bash and other "modern"
interpreters).

However the make "all" target already complies with POSIX, so in this
commit we try to make "range" target POSIX compliant to ensure that the
makefile works as expected on systems where make uses /bin/sh as default
intepreter and where /bin/sh points to POSIX shell.

2023-08-17 00:09:05 +02:00

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