介子没有 link 库

Question

我正在尝试修复介子构建未在 link 库中获取的问题。 meson.build 文件有

tz_dep = dependency(
    'date',
    default_options : [ 'use_system_tzdb=true' ],
    fallback: [ 'date', 'tz_dep' ]
)

# ...

executable(
    'waybar',
    src_files,
    dependencies: [
        # ...
        tz_dep
    ],
    include_directories: [include_directories('include')],
    install: true,
)

它确实找到了 /usr/lib/x86_64-linux-gnu/cmake/date/dateConfig.cmake。对应的dateTargets-none.cmake为

#----------------------------------------------------------------
# Generated CMake target import file for configuration "None".
#----------------------------------------------------------------

# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)

# Import target "date::date-tz" for configuration "None"
set_property(TARGET date::date-tz APPEND PROPERTY IMPORTED_CONFIGURATIONS NONE)
set_target_properties(date::date-tz PROPERTIES
  IMPORTED_LOCATION_NONE "${_IMPORT_PREFIX}/lib/x86_64-linux-gnu/libdate-tz.so.2.4.1"
  IMPORTED_SONAME_NONE "libdate-tz.so.2.4.1"
  )

list(APPEND _IMPORT_CHECK_TARGETS date::date-tz )
list(APPEND _IMPORT_CHECK_FILES_FOR_date::date-tz "${_IMPORT_PREFIX}/lib/x86_64-linux-gnu/libdate-tz.so.2.4.1" )

# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)

然而，介子并不link /usr/lib/x86_64-linux-gnu/libdate-tz.so.2.4.1。

我不确定问题是出在meson还是cmake配置上。如果需要，我可以提供更多详细信息。

Answer 1

我现在正在为 waybar 编写一个 ebuild（gentoo 包）并且遇到了与您描述的相同的问题。解决方案在您的 meson.build 文件中，它指定 date 依赖不完整。

这是我应用的补丁，然后它起作用了（我对介子之类的东西一无所知，但这似乎使 waybar 编译）：

diff --git a/meson.build b/meson.build
index 5d45a29..dd56c29 100644
--- a/meson.build
+++ b/meson.build
@@ -98,7 +98,7 @@ gtk_layer_shell = dependency('gtk-layer-shell-0',
         required: get_option('gtk-layer-shell'),
         fallback : ['gtk-layer-shell', 'gtk_layer_shell_dep'])
 systemd = dependency('systemd', required: get_option('systemd'))
-tz_dep = dependency('date', default_options : [ 'use_system_tzdb=true' ], fallback: [ 'date', 'tz_dep' ])
+tz_dep = dependency('date', default_options : [ 'use_system_tzdb=true' ], modules : [ 'date::date', 'date::date-tz' ], fallback: [ 'date', 'tz_dep' ])

 prefix = get_option('prefix')
 sysconfdir = get_option('sysconfdir')

也许这有帮助！

最好的问候，乔纳斯

介子没有 link 库

meson doesn't link library

c++

linux

cmake

meson-build