Comments (5)
Hm I don't think it's possible for CMake to "cache" a subdirectory, as it needs to run all dependency's CMakeLists to ensure that all contained targets and functions etc are defined and in the correct order.
One thing you could do is to pre-build and install the dependency "normally" and then use CPMFindPackage
instead of CPMAddPackage
too add it. That way CPM should pick up the installed version and will use the pre-built libraries and headers (assuming the CMake Module path is set up correctly).
Another way to speed up configure time is setting a generator such as ninja, which is noticeably faster than make in configuration and build times.
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Thanks, good suggestion, I'll try precompiling and use CPMFindPackage. I thought you added an option for CPMAddPackage to prefer to find_package first, is this correct?
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Yeah, you could also get this behaviour globally for CPMAddPackage
by defining CPM_USE_LOCAL_PACKAGES=1
as a CMake option or environmental variable.
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Closing as there is nothing that CPM can really do against slow dependency configure times.
Did installing and CPMFindPackage
work for you?
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As it turns out the largest bottleneck for us was CMake's FetchContent doing essentially nothing. Therefore the most recent release bypasses FetchContent for previously cached dependencies. For us this reduced configuration time from minutes to seconds. @bolu-atx perhaps you could try updating CPM.cmake to at least 0.28.0 and see if it reduces configuration time for your projects as well.
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Related Issues (20)
- GIT_SHALLOW still downloads the whole repo HOT 1
- CPM in CMake scripts: define_property command is not scriptable
- CPM_SOURCE_CACHE is ignored if SOURCE_DIR is set
- Can you help with compiling `libtins` library using CPM?
- cpm git fetch is occasionally empty HOT 1
- Cache: failure when the download is aborted and the download dir is empty HOT 3
- Add support for ExternalProject_Add() / libjpeg HOT 3
- Feature Request: Short syntax in long syntax. HOT 1
- Don't unconditionally download in get_cpm.cmake HOT 5
- Add example for using the `libuv` repository HOT 2
- CPM name of the package MUST NOT be exported target name HOT 2
- Using CPM_dep_SOURCE appears to work, but includes are not found HOT 4
- when use cache the depends lib appeared outside the project in clion HOT 2
- Users in enterprise environments require the ability to add custom URI schemes and override standard URI schemes
- Fast skip dependencies
- CMake 3.30: Calling FetchContent_Populate() is deprecated HOT 2
- Lua example is broken? HOT 1
- Shallow submodules HOT 1
- Incorrect find patch program under win32 HOT 2
- Skip fetch only works when `CPM_SOURCE_CACHE` is defined
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