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63 lines
2.1 KiB
63 lines
2.1 KiB
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short-description: Configuring a pre-generated build directory |
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# Configuring a build directory |
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Often you want to change the settings of your build after it has been |
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generated. For example you might want to change from a debug build |
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into a release build, set custom compiler flags, change the build |
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options provided in your `meson_options.txt` file and so on. |
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The main tool for this is the `meson configure` command. You may also use the |
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`mesongui` graphical application if you want. However this document |
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describes the use of the command line client. |
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You invoke `meson configure` by giving it the location of your build dir. If |
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omitted, the current working directory is used instead. Here's a |
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sample output for a simple project. |
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Core properties |
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Source dir /home/jpakkane/clangdemo/2_address |
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Build dir /home/jpakkane/clangdemo/2_address/buildmeson |
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Core options |
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type Build type debug |
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strip Strip on install False |
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coverage Coverage report False |
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pch Precompiled headers True |
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unity Unity build False |
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Compiler flags |
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cflags [] |
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Linker flags |
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clinkflags [] |
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Directories |
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installprefix Install prefix /usr/local |
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libdir Library directory lib |
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bindir Binary directory bin |
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includedir Header directory include |
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datadir Data directory share |
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mandir Man page directory share/man |
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localedir Locale file directory share/locale |
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This project does not have any options |
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These are all the options available for the current project arranged |
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into related groups. The first column in every field is the name of |
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the option. To set an option you use the `-D` option. For example, |
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changing the installation prefix from `/usr/local` to `/tmp/testroot` |
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you would issue the following command. |
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meson configure -Dprefix=/tmp/testroot |
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Then you would run your build command (usually `ninja`), which would |
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cause Meson to detect that the build setup has changed and do all the |
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work required to bring your build tree up to date.
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