CI: Enable the verbose mode in the mkmf.rb by env MAKEFLAGS. #624
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This reverts commit a832f5c. Because there is a simpler way to enable the verbose mode by setting the environment variable `MAKEFLAGS`.
Enable the verbose option (variable `V`) in the `Makefile` generated by `mkmf.rb` to print the compiling commands in the process of the `rake compile` by setting the environment variable `MAKEFLAGS`[1] reserved by `make`. Because it's helpful to see what compiler warnings are checked. It seems that this implementation to enable the verbose mode only works in Linux and macOS. Not Windows. [1] https://www.gnu.org/software/make/manual/html_node/Variables_002fRecursion.html
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By the way, this technique is used in the mysql2 gem project too. |
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This PR includes 2 commits, the commit reverting the #623, and a commit to enable the verbose mode in much simpler way.
Enable the verbose option (variable
V) in theMakefilegenerated bymkmf.rbto print the compiling commands in the process of therake compileby setting the environment variable
MAKEFLAGS[1] reserved bymake. Becauseit's helpful to see what compiler warnings are checked.
It seems that this implementation to enable the verbose mode only works in
Linux and macOS. Not Windows.
[1] https://www.gnu.org/software/make/manual/html_node/Variables_002fRecursion.html