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GNUInstallDirs: Factor out helper to compute system type

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Factor a `_GNUInstallDirs_get_system_type_for_install` helper
out of the `CMAKE_INSTALL_LIBDIR` logic.

Signed-off-by: Cristian Le <git@lecris.dev>
This commit is contained in:
Cristian Le
2025-04-04 15:32:52 +02:00
committed by Brad King
parent 0c9b6aa9e4
commit 83f44bbf53
1 changed files with 35 additions and 26 deletions
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61
Modules/GNUInstallDirs.cmake
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@@ -190,6 +190,40 @@ function(_GNUInstallDirs_cache_path_fallback var description)
return(PROPAGATE ${cmake_install_var})
endfunction()
# Other helpers
# Check what system we are on for LIBDIR formatting
function(_GNUInstallDirs_get_system_type_for_install out_var)
unset(${out_var})
# Check if we are building for conda
if(DEFINED ENV{CONDA_BUILD} AND DEFINED ENV{PREFIX})
set(conda_prefix "$ENV{PREFIX}")
cmake_path(ABSOLUTE_PATH conda_prefix NORMALIZE)
if("${CMAKE_INSTALL_PREFIX}" STREQUAL conda_prefix)
set(${out_var} "conda")
endif()
elseif(DEFINED ENV{CONDA_PREFIX})
set(conda_prefix "$ENV{CONDA_PREFIX}")
cmake_path(ABSOLUTE_PATH conda_prefix NORMALIZE)
if("${CMAKE_INSTALL_PREFIX}" STREQUAL conda_prefix AND
NOT ("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$" OR
"${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/local/?$"))
set(${out_var} "conda")
endif()
endif()
# If we didn't detect conda from the previous step, check
# for the linux variant
if(NOT ${out_var})
if (EXISTS "/etc/alpine-release")
set(${out_var} "alpine")
elseif (EXISTS "/etc/arch-release")
set(${out_var} "arch linux")
elseif (EXISTS "/etc/debian_version")
set(${out_var} "debian")
endif()
endif()
return(PROPAGATE ${out_var})
endfunction()
# Installation directories
#
@@ -259,32 +293,7 @@ if(NOT DEFINED CMAKE_INSTALL_LIBDIR OR (_libdir_set
if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|GNU)$"
AND NOT CMAKE_CROSSCOMPILING)
unset(__system_type_for_install)
if(DEFINED ENV{CONDA_BUILD} AND DEFINED ENV{PREFIX})
set(conda_prefix "$ENV{PREFIX}")
cmake_path(ABSOLUTE_PATH conda_prefix NORMALIZE)
if("${CMAKE_INSTALL_PREFIX}" STREQUAL conda_prefix)
set(__system_type_for_install "conda")
endif()
elseif(DEFINED ENV{CONDA_PREFIX})
set(conda_prefix "$ENV{CONDA_PREFIX}")
cmake_path(ABSOLUTE_PATH conda_prefix NORMALIZE)
if("${CMAKE_INSTALL_PREFIX}" STREQUAL conda_prefix AND
NOT ("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$" OR
"${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/local/?$"))
set(__system_type_for_install "conda")
endif()
endif()
if(NOT __system_type_for_install)
if (EXISTS "/etc/alpine-release")
set(__system_type_for_install "alpine")
elseif (EXISTS "/etc/arch-release")
set(__system_type_for_install "arch linux")
elseif (EXISTS "/etc/debian_version")
set(__system_type_for_install "debian")
endif()
endif()
_GNUInstallDirs_get_system_type_for_install(__system_type_for_install)
if(__system_type_for_install STREQUAL "debian")
if(CMAKE_LIBRARY_ARCHITECTURE)
if("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")