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Abort makefile if variable not set
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TL;DR: Use the error function:
ifndef MY_FLAG
$(error MY_FLAG is not set)
endif
Note that the lines must not be indented. More precisely, no tabs must precede these lines.
Generic solution
In case you're going to test many variables,...
How to edit log message already committed in Subversion?
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if /I not '%propname%'=='svn:log' goto ERROR_PROPNAME
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:: Only allow modifications to svn:log (no addition/overwrite or deletion)
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Get time in milliseconds using C#
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answered Oct 25 '10 at 16:05
RedFilterRedFilter
149k3333 gold badges263263 silver badges268268 bronze badges
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Set timeout for ajax (jQuery)
...cumentation, this is a covered topic.
$.ajax({
url: "test.html",
error: function(){
// will fire when timeout is reached
},
success: function(){
//do something
},
timeout: 3000 // sets timeout to 3 seconds
});
You can get see what type of error was thrown ...
What are the differences between poll and select?
...h sockets and file descriptors you want to watch for reading, writing, and errors, and then the operating system marks which ones in fact have had some kind of activity; poll() has you create a list of descriptor IDs, and the operating system marks each of them with the kind of event that occurred.
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How are software license keys generated?
...at will appear to work but fail on a future version due to a typographical error.
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Include an SVG (hosted on GitHub) in MarkDown
...ed now.
– Potherca
Dec 31 '13 at 10:05
1
@ShreevatsaR Correct. Github never ment the raw view to ...
Calling a JavaScript function named in a variable [duplicate]
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answered Nov 12 '09 at 16:05
NosrednaNosredna
71.9k1515 gold badges9090 silver badges121121 bronze badges
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“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
...able-web-security command line option. This should probably get rid of the error (and allow FB to spy on your testing ;)
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Execute and get the output of a shell command in node.js
...ss').exec;
function execute(command, callback){
exec(command, function(error, stdout, stderr){ callback(stdout); });
};
Example: Retrieving git user
module.exports.getGitUser = function(callback){
execute("git config --global user.name", function(name){
execute("git config --globa...