Name: CLion中的CMake支持 (CMake support in CLion)
Uploaded: 2021-01-14T06:42:56.000Z
Duration: 7 min 13 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Hi, and welcome to a screencast on CMake support in CLion. Now, CMake is

so when you make a new project, or when you open an existing project, you're

import something from sources, you can import a set of files that has nothing

to do with CMake per se and, in this case,

CLion will simply generate the CMakeLists file for you

but here we're going to make a new project. I'll make this one "Hello CMake"

and we'll take a look at how CMake support is actually

so here is our generated project and you'll notice that

all the definitions related to this project are in a file called

so that's the project file that CMake will be using to build the application

and CLion itself is using to figure out what's what

in the project itself; so as soon as you make any changes

CLion is going to attempt to reload those changes, so for example let me

comment out this line here. As soon as I do that

CLion is telling me that the CMake project needs to be reloaded and there

are two options here: one is to press the link to reload the changes

or I can enable auto-reloading which means that

anytime I change the CMakeLists file, CLion

is going to reload the project. Now, CLion, as I mentioned, it takes all the

information about the project from the CMakeLists file, so it figures out

it takes variable values, compiler options and so on.

And so operations in CLion quite often involve changes to the CMakeLists

add a new class [let's call it Example] you'll see that

there is an option here too added to the targets. And as soon

as I press OK here, if we go back into CMakeLists, you can see that both the

and the CPP have been added to this CMakeLists file

Now, of course, in addition to manipulating CMakeLists filed by

having new classes for example you can simply and it'd manually

an instruction to find a package in let's take a look at how this works so

i right find package notice I get code completion here I can simply press

return at this point but I have provided a parameter

so what happens is céline tries to fire up see make

and look for potential problems with the sea make lists file

and indeed had reports and there it tells me that fine package is called

incorrect number of arguments so if I were to provide a bogus

argument like asdf for example then once again

see make doesn't reload and now we get a warning that there is no find a SPF 30

so that's finally put something sensible in here and in a similar fashion

céline provides code completion for the file name so let me simply comment out

and that suppose I want to add example to the source file

soon as I start typing notice I get code completion for example dot CPP an

press return here and since we collected to order reload the changes

those changes get automatically updated without any

involvement from me personally so we looked at the scene make

aris in the appropriate when there let's take a look at once again

in the tests are being up see make so there are no problems right now but

of the buttons that are available here suffer stubble the scenic settings

now the four-week even jump in to see make let's talk about the two chain n

hear things are fairly simple because he lie in tax the bundles

a version ups he makes so you don't have to install one

unless there is a specific question that you want in which case you can take the

and simply provide a path for that version will

go with the one that's provided for us by céline and noticed that there is

a said of indicators here telling you whether or not

the settings you've got a correct so that's the to change in terms of C make

but let's get back into the sea make setting so here's our setting for

automatically reloading the project on any kind of changes

in addition it's possible to provide see make options

so here for example I can type dashed d and then simply rightfully cause bar to

we are also electing to pass system environment variables and there is a

show you what those environment variables actually are and in it she you

additional properties but once again typing the name here

and some value in here so in addition to that you can specify the build-up in so

for example specifying how many course you want

your application to be compiled on and you can also specify the build

output path and this can be either absolute or relative

for example I can specified a folder called bill that would be relative

to my project would so let's press okay here and we've incorporated some setting

make you serve the San notice we get a small warning here that that setting for

that we specified isn't actually being used for anything

now in addition to this setting there is another setting here call change project

to attend to explain how it works let me give you an example where

all of our project files are inside some folder deeper

in our project structure so what I'm going to do is I'm going to make

in your territory let's call it example and let's suppose

that although our files are in fact in that territory so I'll put them

if we open the project right now so let me close

céline close the project humble open it once again but this time