如何使用meson构建C语言项目

如何使用meson构建C语言项目(2)

时间：2024-01-29 01:28:34 来源：IT袋作者：马勇

导读：如何使用meson构建C语言项目，project('my_project', 'c')# Define sourcessrc_files = files(['src/main.c', 'src/util/helper.c'])# Define include directoriesinc_path = include_directories('include')# Set CC environment variable to sp

如何使用meson构建C语言项目

project('my_project', 'c')
# Define sources
src_files = files(['src/main.c', 'src/util/helper.c'])
# Define include directories
inc_path = include_directories('include')
# Set CC environment variable to specify the compiler
# Add an executable
executable('my_hello', src_files, include_directories: inc_path)

native-file.txt

该文件指定一些构建要用的参数

[binaries]
c = ['ccache', 'x86_64-linux-gnu-gcc']
cpp = ['ccache', 'x86_64-linux-gnu-g++']
ar = 'x86_64-linux-gnu-gcc-ar'
strip = 'x86_64-linux-gnu-strip'
pkgconfig = 'x86_64-linux-gnu-pkg-config'
pcap-config = ''
cmake = 'cmake'

2.2 完整构建meson_project项目

1. meson setup build 创建构建目录

这个是告诉meson在哪个目录下构建(这里是源码根目录下的build目录)，meson一定要在一个和源码独立的目录里做构建，这样多次构建可以指定不同的构建目录和构建配置，相互之间不受影响，比如对于同样的程序，构建一个riscv版本可以这样指定构建目录：

meson setup --cross-file ./rv_cross_file rv_builddir

开始创建build目录

$ meson setup build  # 创建build目录
The Meson build system
Version: 0.61.2
Source dir: /home/meson_project
Build dir: /home/meson_project/build
Build type: native build
Project name: my_project
Project version: undefined
C compiler for the host machine: cc (gcc 11.4.0 "cc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0")
C linker for the host machine: cc ld.bfd 2.38
Host machine cpu family: x86_64
Host machine cpu: x86_64
Build targets in project: 1
Found ninja-1.10.1 at /usr/bin/ninja

2.根据native_file.txt配置文件，指定构建目录

meson_project$ ls
build  include  meson.build  native-file.txt  src
meson_project$ meson build --cross-file native-file.txt
Directory already configured.
Just run your build command (e.g. ninja) and Meson will regenerate as necessary.
If ninja fails, run "ninja reconfigure" or "meson --reconfigure"
to force Meson to regenerate.
If build failures persist, run "meson setup --wipe" to rebuild from scratch
using the same options as passed when configuring the build.
To change option values, run "meson configure" instead.

3.使用ninja将源码编译并输出到build目录下

meson_project$ ninja -C build -v
ninja: Entering directory `build'
[1/3] cc -Imy_hello.p -I. -I.. -I../include -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -g -MD -MQ my_hello.p/src_util_helper.c.o -MF my_hello.p/src_util_helper.c.o.d -o my_hello.p/src_util_helper.c.o -c ../src/util/helper.c
[2/3] cc -Imy_hello.p -I. -I.. -I../include -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -g -MD -MQ my_hello.p/src_main.c.o -MF my_hello.p/src_main.c.o.d -o my_hello.p/src_main.c.o -c ../src/main.c
[3/3] cc  -o my_hello my_hello.p/src_main.c.o my_hello.p/src_util_helper.c.o -Wl,--as-needed -Wl,--no-undefined
meson_project$
meson_project$
meson_project$ ls
build  include  meson.build  native-file.txt  src