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Check if a program exists from a Makefile

How can I check if a program is callable from a Makefile? 12 Answers 12 ...
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Do copyright dates need to be updated? [closed]

...e work. Therefore, if the claim is based on common law copyright (not formally registered), then the date should be the date of first publication. If the claim is a registered copyright, then the date should be the date claimed in the registration. In cases where the work was substantially revised ...
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differentiate null=True, blank=True in django

When we add a database field in django we generally write: 18 Answers 18 ...
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source of historical stock data [closed]

I'm trying to make a stock market simulator (perhaps eventually growing into a predicting AI), but I'm having trouble finding data to use. I'm looking for a (hopefully free) source of historical stock market data. ...
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Can I concatenate multiple MySQL rows into one field?

... My need was to get ALL the data from one column. Don't use the GROUP BY clause to do this. Example : SELECT GROUP_CONCAT(emails SEPARATOR ', ') FROM users; – Jonathan Bergeron Jan 17 '14 at 14:04 ...
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Mercurial — revert back to old version and continue from there

I'm using Mercurial locally for a project (it's the only repo there's no pushing/pulling to/from anywhere else). 7 Answers ...
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EXC_BAD_ACCESS signal received

...ou've come from another background it can take a little while before you really internalise the memory management rules - unless you make a big point of it. Remember, anything you get from an allocation function (usually the static alloc method, but there are a few others), or a copy method, you ow...
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Xcode duplicate/delete line

Coming from Eclipse and having been used to duplicate lines all the time, it's pretty strange finding out that Xcode has no such function. Or does it? ...
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Creation timestamp and last update timestamp with Hibernate and MySQL

... thanks bro such a small thing need to update timestamp. I didnt know. you saved my day. – Virendra Sagar Jan 27 '17 at 14:28 ...
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Custom CSS Scrollbar for Firefox

...ording to the spec. Both thin and a specific length may not do anything on all platforms, and what exactly it does is platform-specific. In particular, Firefox doesn't appear to be currently support a specific length value (this comment on their bug tracker seems to confirm this). The thin keywork d...