配置构建目录
通常，您希望在构建生成后更改构建设置。例如，您可能希望从调试构建更改为发布构建，设置自定义编译器标志，更改在 meson.options 文件中提供的构建选项等等。
meson configure 命令是用于此的主要工具。
您可以通过指定构建目录的位置来调用 meson configure。如果省略，则使用当前工作目录。以下是一个简单项目的示例输出。
Core properties
Source dir /home/jpakkane/clangdemo/2_address
Build dir /home/jpakkane/clangdemo/2_address/buildmeson
Core options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
auto_features auto [enabled, disabled, auto] Override value of all 'auto' features
backend ninja [ninja, vs, vs2010, vs2015, vs2017, vs2019, vs2022, xcode] Backend to use
buildtype release [plain, debug, debugoptimized, release, minsize, custom] Build type to use
debug false [true, false] Debug
default_library shared [shared, static, both] Default library type
install_umask 0022 [preserve, 0000-0777] Default umask to apply on permissions of installed files
layout mirror [mirror, flat] Build directory layout
optimization 3 [plain, 0, g, 1, 2, 3, s] Optimization level
prefer_static false [true, false] Whether to try static linking before shared linking
strip false [true, false] Strip targets on install
unity off [on, off, subprojects] Unity build
warning_level 1 [0, 1, 2, 3, everything] Compiler warning level to use
werror false [true, false] Treat warnings as errors
Backend options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
backend_max_links 0 >=0 Maximum number of linker processes to run or 0 for no limit
Base options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
b_asneeded true [true, false] Use -Wl,--as-needed when linking
b_colorout always [auto, always, never] Use colored output
b_coverage false [true, false] Enable coverage tracking.
b_lto false [true, false] Use link time optimization
b_lundef true [true, false] Use -Wl,--no-undefined when linking
b_ndebug false [true, false, if-release] Disable asserts
b_pch true [true, false] Use precompiled headers
b_pgo off [off, generate, use] Use profile guided optimization
b_sanitize none [none, address, thread, undefined, leak, memory, address,undefined] Code sanitizer to use
b_staticpic true [true, false] Build static libraries as position independent
Compiler options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
c_args [] Extra arguments passed to the C compiler
c_link_args [] Extra arguments passed to the C linker
c_std c99 [none, c89, c99, c11, c17, c18, c2x, c23, gnu89, gnu99, gnu11, gnu17, gnu18, gnu2x, gnu23] C language standard to use
cpp_args [] Extra arguments passed to the C++ compiler
cpp_debugstl false [true, false] STL debug mode
cpp_link_args [] Extra arguments passed to the C++ linker
cpp_std c++11 [none, c++98, c++03, c++11, c++14, c++17, c++1z, c++2a, c++20, gnu++03, gnu++11, gnu++14, gnu++17, gnu++1z, gnu++2a, gnu++20] C++ language standard to use
fortran_std [] [none, legacy, f95, f2003, f2008, f2018] language standard to use
Directories:
Option Current Value Description
------ ------------- -----------
bindir bin Executable directory
datadir share Data file directory
includedir include Header file directory
infodir share/info Info page directory
libdir lib/x86_64-linux-gnu Library directory
libexecdir libexec Library executable directory
localedir share/locale Locale data directory
localstatedir /var/local Localstate data directory
mandir share/man Manual page directory
prefix /usr/local Installation prefix
sbindir sbin System executable directory
sharedstatedir /var/local/lib Architecture-independent data directory
sysconfdir etc Sysconf data directory
Project options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
array_opt [one, two] [one, two, three] array_opt
combo_opt three [one, two, three] combo_opt
free_array_opt [one, two] free_array_opt
integer_opt 3 >=0, <=5 integer_opt
other_one false [true, false] other_one
some_feature enabled [enabled, disabled, auto] some_feature
someoption optval An option
Testing options:
Option Current Value Possible Values Description
------ ------------- --------------- -----------
errorlogs true [true, false] Whether to print the logs from failing tests
stdsplit true [true, false] Split stdout and stderr in test logs
这些是当前项目可用的所有选项，按相关组排列。每个字段的第一列是选项的名称。要设置选项，请使用 -D 选项。例如，将安装前缀从 /usr/local 更改为 /tmp/testroot，您将发出以下命令。
meson configure -Dprefix=/tmp/testroot
然后，您将运行构建命令（通常是 meson compile），这将导致 Meson 检测到构建设置已更改，并执行所有必要的步骤以使构建树保持最新状态。
从 0.50.0 版本开始，还可以通过使用项目源目录或根 meson.build 的路径调用 meson configure 来获取所有构建选项的列表。在这种情况下，Meson 将打印所有选项的默认值，类似于上面的示例输出。
搜索结果是