mirror of
https://github.com/lm-sensors/lm-sensors.git
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Jean Delvare
1e8dab35c9
git-svn-id: http://lm-sensors.org/svn/lm-sensors/branches/lm-sensors-3.0.0@5055 7894878c-1315-0410-8ee3-d5d059ff63e0
55 lines
2.1 KiB
Plaintext
55 lines
2.1 KiB
Plaintext
The Makefiles in this package are rather advanced. They are partially based
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on the article "Recursive Make considered Harmful", written by Peter Miller:
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http://miller.emu.id.au/pmiller/books/rmch/
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There is one big Makefile in the root of this package. It includes many
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other files; one for each directory in which source code is found. These
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included files are called 'Module.mk'.
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There are several interesting targets defined through this Makefile:
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* all
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Create everything in all directories.
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* install
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Install everything from all directories.
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* uninstall
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Uninstall everything.
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* clean
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Remove anything which can be regenerated from all directories. A call
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of 'make clean' (without any other targets) will ignore any .d files;
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this is useful when they are out of date (and prevent the calling of
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any other target).
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The best way to understand the Module.mk subfiles is to examine one of them,
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for example lib/Module.mk. They are not too difficult to understand.
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There are several variables which can be set in the main Makefile. You can
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also specify them on the command-line; this overrules any definitions
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within the Makefile. For example: 'make all WARN=1' will enable all warnings.
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Examine main Makefile to see which ones are available. The most important
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ones for developers:
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* WARN
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Set to 1 to enable many compiler warnings.
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* DEBUG
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Set to 1 to enable any debugging code. Note that debugging code should
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only output more information, and never make the code mis-behave.
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Several files are generated by Makefiles:
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* .rd
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Dependency files for executables. Automatically generated.
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* .ad
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Dependency files for static libraries. Automatically generated.
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* .ld
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Dependency files for shared libraries. Automatically generated.
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* .ro
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Object files for executables. They will be linked together to create
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the executable.
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* .ao
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Object files for static libraries
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* .lo
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Object files for shared libraries
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The reason for using different extensions is to make the Makefile much
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simpler.
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There are lots of comments within the main Makefile. Please read them if
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you want to know more.
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