Follow-up Comment #1, bug #16670 (project make):
OK, the fix for this is simple enough. However, it does cause user-visible
changes. It's not so much the replacing of each backslash/newline/following
whitespace with a space that's the issue, it's the fact that TRAILING
whitespace on the previous line is no longer condensed. The current behavior
basically condenses ALL whitespace starting with the last non-whitespace
character on the previous line and going until the next non-whitespace
character (where backslash/newline are considered whitespace) and replaces it
with a single space. So, in the current version of make this:
FOO = a
b
Gives a value of $(FOO) that is "a b". In the new behavior this would give
"a b", because the trailing whitespace on the previous line is
preserved, plus one extra space for the backslash/newline/following
whitespace.
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