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Installing PG gem on OS X - failure to build native extension

... Same error for me and I didn't experience it until I downloaded OS X 10.9 (Mavericks). Sigh, another OS upgrade headache. Here's how I fixed it (with homebrew): Install another build of Xcode Tools (typing brew update in the terminal will p...
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Access restriction on class due to restriction on required library rt.jar?

...ings in the project properties. Remove the JRE System Library Add it back; Select "Add Library" and select the JRE System Library. The default worked for me. This works because you have multiple classes in different jar files. Removing and re-adding the JRE lib will make the right classes be first...
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Git ignore file for Xcode projects

...bout this, but in practice it seems you should ignore it. # - minor tweaks from Jona and Coeur (slightly more precise xc* filtering/names) # 2014 updates: # - appended non-standard items DISABLED by default (uncomment if you use those tools) # - removed the edit that an SO.com moderator made without...
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Twitter bootstrap scrollable table

...able; table-layout: fixed; } table{ height:300px; // <-- Select the height of the table display: -moz-groupbox; // Firefox Bad Effect } tbody{ overflow-y: scroll; height: 200px; // <-- Select the height of the body width: 100%; position: absolute; }...
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Create empty file using python [duplicate]

...fter the open() statement finished - but it's cleaner to do it explicitely and relying on CPython-specific behaviour is not good either. In case you want touch's behaviour (i.e. update the mtime in case the file exists): import os def touch(path): with open(path, 'a'): os.utime(path, N...
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Android static object lifecycle

...vity state so that on restart, the fields get filled with their previously selected values, you can implement the onSaveInstanceState() activity method - note that this is not recommended for between activities persistance of states. You can get some code examples of the usage of preferences, inte...
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How do I check OS with a preprocessor directive?

...them, with links to where they're found: Windows _WIN32   Both 32 bit and 64 bit _WIN64   64 bit only Unix (Linux, *BSD, Mac OS X) See this related question on some of the pitfalls of using this check. unix __unix __unix__ Mac OS X __APPLE__ __MACH__ Both are defined; checking for eith...
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Regular expressions in an Objective-C Cocoa application

...Objective-C? Could you maybe include a code snippet for converting to and from NSString? thanks again! – dreeves Jan 7 '09 at 21:45 ...
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What REALLY happens when you don't free after malloc?

...ce is explicitly deallocated). The lifetime of an allocated object extends from the allocation until the deallocation.[...] So it has not to be given that the environment is doing the freeing job for you. Otherwise it would be added to the last sentence: "Or until the program terminates." So in oth...
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Changing the current working directory in Java?

How can I change the current working directory from within a Java program? Everything I've been able to find about the issue claims that you simply can't do it, but I can't believe that that's really the case. ...