134 lines
4.5 KiB
Markdown
134 lines
4.5 KiB
Markdown
_ _ ____ _
|
|
___| | | | _ \| |
|
|
/ __| | | | |_) | |
|
|
| (__| |_| | _ <| |___
|
|
\___|\___/|_| \_\_____|
|
|
|
|
How To Compile with CMake
|
|
|
|
# Building with CMake
|
|
|
|
This document describes how to configure, build and install curl and libcurl
|
|
from source code using the CMake build tool. To build with CMake, you will
|
|
of course have to first install CMake. The minimum required version of CMake
|
|
is specified in the file `CMakeLists.txt` found in the top of the curl
|
|
source tree. Once the correct version of CMake is installed you can follow
|
|
the instructions below for the platform you are building on.
|
|
|
|
CMake builds can be configured either from the command line, or from one of
|
|
CMake's GUIs.
|
|
|
|
# Current flaws in the curl CMake build
|
|
|
|
Missing features in the CMake build:
|
|
|
|
- Builds libcurl without large file support
|
|
- Does not support all SSL libraries (only OpenSSL, Schannel, Secure
|
|
Transport, and mbedTLS, WolfSSL)
|
|
- Does not allow different resolver backends (no c-ares build support)
|
|
- No RTMP support built
|
|
- Does not allow build curl and libcurl debug enabled
|
|
- Does not allow a custom CA bundle path
|
|
- Does not allow you to disable specific protocols from the build
|
|
- Does not find or use krb4 or GSS
|
|
- Rebuilds test files too eagerly, but still cannot run the tests
|
|
- Does not detect the correct `strerror_r` flavor when cross-compiling
|
|
(issue #1123)
|
|
|
|
# Configuring
|
|
|
|
A CMake configuration of curl is similar to the autotools build of curl.
|
|
It consists of the following steps after you have unpacked the source.
|
|
|
|
## Using `cmake`
|
|
|
|
You can configure for in source tree builds or for a build tree
|
|
that is apart from the source tree.
|
|
|
|
- Build in the source tree.
|
|
|
|
$ cmake -B .
|
|
|
|
- Build in a separate directory (parallel to the curl source tree in this
|
|
example). The build directory will be created for you.
|
|
|
|
$ cmake -B ../curl-build
|
|
|
|
### Fallback for CMake before version 3.13
|
|
|
|
CMake before version 3.13 does not support the `-B` option. In that case,
|
|
you must create the build directory yourself, `cd` to it and run `cmake`
|
|
from there:
|
|
|
|
$ mkdir ../curl-build
|
|
$ cd ../curl-build
|
|
$ cmake ../curl
|
|
|
|
If you want to build in the source tree, it is enough to do this:
|
|
|
|
$ cmake .
|
|
|
|
## Using `ccmake`
|
|
|
|
CMake comes with a curses based interface called `ccmake`. To run `ccmake`
|
|
on a curl use the instructions for the command line cmake, but substitute
|
|
`ccmake` for `cmake`.
|
|
|
|
This will bring up a curses interface with instructions on the bottom of the
|
|
screen. You can press the "c" key to configure the project, and the "g" key
|
|
to generate the project. After the project is generated, you can run make.
|
|
|
|
## Using `cmake-gui`
|
|
|
|
CMake also comes with a Qt based GUI called `cmake-gui`. To configure with
|
|
`cmake-gui`, you run `cmake-gui` and follow these steps:
|
|
|
|
1. Fill in the "Where is the source code" combo box with the path to
|
|
the curl source tree.
|
|
2. Fill in the "Where to build the binaries" combo box with the path to
|
|
the directory for your build tree, ideally this should not be the same
|
|
as the source tree, but a parallel directory called curl-build or
|
|
something similar.
|
|
3. Once the source and binary directories are specified, press the
|
|
"Configure" button.
|
|
4. Select the native build tool that you want to use.
|
|
5. At this point you can change any of the options presented in the GUI.
|
|
Once you have selected all the options you want, click the "Generate"
|
|
button.
|
|
|
|
# Building
|
|
|
|
Build (you have to specify the build directory).
|
|
|
|
$ cmake --build ../curl-build
|
|
|
|
### Fallback for CMake before version 3.13
|
|
|
|
CMake before version 3.13 does not support the `--build` option. In that
|
|
case, you have to `cd` to the build directory and use the building tool that
|
|
corresponds to the build files that CMake generated for you. This example
|
|
assumes that CMake generates `Makefile`:
|
|
|
|
$ cd ../curl-build
|
|
$ make
|
|
|
|
# Testing
|
|
|
|
(The test suite does not yet work with the cmake build)
|
|
|
|
# Installing
|
|
|
|
Install to default location (you have to specify the build directory).
|
|
|
|
$ cmake --install ../curl-build
|
|
|
|
### Fallback for CMake before version 3.15
|
|
|
|
CMake before version 3.15 does not support the `--install` option. In that
|
|
case, you have to `cd` to the build directory and use the building tool that
|
|
corresponds to the build files that CMake generated for you. This example
|
|
assumes that CMake generates `Makefile`:
|
|
|
|
$ cd ../curl-build
|
|
$ make install
|