[issue2233] Makefile.pre.in contains extra slash before $(DESTDIR) which can cause Cygwin build to fail

[Jason Tishler]

Jason Tishler <jason at tishler.net> added the comment:

I guess you mean the following:

${var:-value} 
Old BSD shells, including the Ultrix sh, don't accept the colon for 
any shell substitution, and complain and die.

If so, should we just go forward without the colon?  The bash manpage 
indicates the following:

In each of the cases below, ... bash tests for a parameter that is 
unset or null; omitting the colon results in a test only for a 
parameter that is unset.

So, if a user executes "make DESTDIR= install", then the build will 
fail. Or, maybe we shouldn't worry about that corner case.

What do you think?

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<http://bugs.python.org/issue2233>
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