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How to set child process' environment variable in Makefile
... test
(assuming you have a sufficiently modern version of GNU make >= 3.77 ).
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/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
How can I get GLIBCXX_3.4.15 in Ubuntu? I can't run some programs that I'm compiling.
19 Answers
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SQLAlchemy: print the actual query
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Ilja Everilä
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answered May 23 '14 at 18:05
zzzeekzzzeek
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Installing older version of R package
...checkpoint and devtools
install.versions(c('checkpoint', 'devtools'), c('0.3.3', '1.6.1'))
That has the advantage of not requiring Rtools to install binary packages on Windows, but only works going back to 2014-09-17 (when MRAN was launched).
To install an older version from the command line (out...
What does new self(); mean in PHP?
... -- i.e. here too, the class in which it is written.
With PHP < 5.3, that "the class in which it is written" is important -- and can sometimes cause problems.
That's why PHP 5.3 introduces a new usage for the static keyword : it can now be used exactly where we used self in those examples ...
How do I find files with a path length greater than 260 characters in Windows?
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do a dir /s /b > out.txt and then add a guide at position 260
In powershell cmd /c dir /s /...
将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...。可以使用最新版本Visual Studio, Microsoft Visual Studio .NET 2003。从www.gnu.org上取得Tar的最新源代码，版本是1.13。在Cygwin下面解开tar-1.13.tar.gz.源代码包。注意请不要在Windows下面使用WINRAR或者WINZIP来解压缩。 WINRAR和WINZIP在解压缩某些tar...
Do I have to Close() a SQLConnection before it gets disposed?
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edited Jun 5 '13 at 15:27
Tim S.
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PHP convert XML to JSON
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Json & Array from XML in 3 lines:
$xml = simplexml_load_string($xml_string);
$json = json_encode($xml);
$array = json_decode($json,TRUE);
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How to get last items of a list in Python?
...re's an example using the python CLI interpreter:
>>> a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a[-9:]
[4, 5, 6, 7, 8, 9, 10, 11, 12]
the important line is a[-9:]
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