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| author | John Ericson <John.Ericson@Obsidian.Systems> | 2021-12-14 22:52:02 +0300 |
|---|---|---|
| committer | John Ericson <John.Ericson@Obsidian.Systems> | 2021-12-30 09:19:30 +0300 |
| commit | bde561c4813952847112600e5efe72d9015556f7 (patch) | |
| tree | b6e67b2e1f52ead4e40b2af593f8de97ce45fc7b /cmake/Modules/ExtendPath.cmake | |
| parent | 458db51c101bc3372e96b71bda7ca0f5ba2ae431 (diff) | |
[compiler-rt][cmake] Factor out extend_install_path function
It is likely to become used again, if other projects want their own per-project
install directory variables. `install` is removed from the name since it is not inherently about installing.
Reviewed By: stephenneuendorffer
Differential Revision: https://reviews.llvm.org/D115746
Diffstat (limited to 'cmake/Modules/ExtendPath.cmake')
| -rw-r--r-- | cmake/Modules/ExtendPath.cmake | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/cmake/Modules/ExtendPath.cmake b/cmake/Modules/ExtendPath.cmake new file mode 100644 index 000000000000..5db393a21e1c --- /dev/null +++ b/cmake/Modules/ExtendPath.cmake @@ -0,0 +1,19 @@ +# Extend the path in `base_path` with the path in `current_segment`, returning +# the result in `joined_path`. If `current_segment` is an absolute path then +# just return it, in effect overriding `base_path`, and issue a warning. +# +# Note that the code returns a relative path (avoiding introducing leading +# slashes) if `base_path` is empty. +function(extend_path joined_path base_path current_segment) + if("${current_segment}" STREQUAL "") + set(temp_path "${base_path}") + elseif("${base_path}" STREQUAL "") + set(temp_path "${current_segment}") + elseif(IS_ABSOLUTE "${current_segment}") + message(WARNING "Since \"${current_segment}\" is absolute, it overrides install path: \"${base_path}\".") + set(temp_path "${current_segment}") + else() + set(temp_path "${base_path}/${current_segment}") + endif() + set(${joined_path} "${temp_path}" PARENT_SCOPE) +endfunction() |