mirror of https://git.tukaani.org/xz.git
CMake: Warn if gettext tools and pre-created .gmo files are missing.
It's only done with CMake >= 3.20 and if library support for translation was already found. Sort of fixes: https://github.com/tukaani-project/xz/issues/82
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@ -278,9 +278,34 @@ endif()
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if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.20")
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find_package(Intl)
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find_package(Gettext)
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if(Intl_FOUND)
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option(ENABLE_NLS "Native Language Support (translated messages)" ON)
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# If translation support is enabled but neither gettext tools or
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# pre-generated .gmo files exist, translation support cannot be
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# enabled.
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#
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# The detection of pre-generated .gmo files is done by only
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# checking for the existence of a single .gmo file; Ukrainian
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# is one of many translations that gets regular updates.
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if(ENABLE_NLS AND NOT GETTEXT_FOUND AND
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NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/po/uk.gmo")
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# This only sets the variable, not the cache variable!
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set(ENABLE_NLS OFF)
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# This message is shown only when new enough CMake is used and
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# library support for translations was found. The assumptions is
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# that in this situation the user might have interest in the
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# translations. This also keeps this code simpler.
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message(WARNING "Native language support (NLS) has been disabled. "
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"NLS support requires either gettext tools or "
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"pre-generated .gmo files. The latter are only "
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"available in distribution tarballs. "
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"To avoid this warning, NLS can be explicitly "
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"disabled by passing -DENABLE_NLS=OFF to cmake.")
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endif()
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# The *installed* name of the translation files is "xz.mo".
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set(TRANSLATION_DOMAIN "xz")
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endif()
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