Files
nixpkgs/pkgs/by-name/cm/cmake/add-nixpkgs-libc-paths.patch

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

51 lines
1.9 KiB
Diff
Raw Permalink Normal View History

2025-10-09 14:15:47 +02:00
diff --git a/Modules/Platform/UnixPaths.cmake b/Modules/Platform/UnixPaths.cmake
index e95da44ea4..bdf4155232 100644
--- a/Modules/Platform/UnixPaths.cmake
+++ b/Modules/Platform/UnixPaths.cmake
@@ -71,28 +71,38 @@
/lib /lib32 /lib64 /usr/lib /usr/lib32 /usr/lib64
)
-if(CMAKE_SYSROOT_COMPILE)
- set(_cmake_sysroot_compile "${CMAKE_SYSROOT_COMPILE}")
+# Add the Nix C library paths.
+if(DEFINED ENV{NIX_CC}
+ AND IS_DIRECTORY "$ENV{NIX_CC}"
+ AND EXISTS "$ENV{NIX_CC}/nix-support/orig-libc"
+ AND EXISTS "$ENV{NIX_CC}/nix-support/orig-libc-dev")
+ file(STRINGS "$ENV{NIX_CC}/nix-support/orig-libc" _nix_cmake_libc)
+ file(STRINGS "$ENV{NIX_CC}/nix-support/orig-libc-dev" _nix_cmake_libc_dev)
else()
- set(_cmake_sysroot_compile "${CMAKE_SYSROOT}")
+ set(_nix_cmake_libc @libc_lib@)
+ set(_nix_cmake_libc_dev @libc_dev@)
endif()
+list(APPEND CMAKE_SYSTEM_INCLUDE_PATH "${_nix_cmake_libc_dev}/include")
+list(APPEND CMAKE_SYSTEM_LIBRARY_PATH "${_nix_cmake_libc}/lib")
+list(APPEND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${_nix_cmake_libc}/lib")
# Default per-language values. These may be later replaced after
# parsing the implicit directory information from compiler output.
set(_CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES_INIT
${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}
- "${_cmake_sysroot_compile}/usr/include"
+ "${_nix_cmake_libc_dev}/include"
)
set(_CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES_INIT
${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES}
- "${_cmake_sysroot_compile}/usr/include"
+ "${_nix_cmake_libc_dev}/include"
)
set(_CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES_INIT
${CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES}
- "${_cmake_sysroot_compile}/usr/include"
+ "${_nix_cmake_libc_dev}/include"
)
-unset(_cmake_sysroot_compile)
+unset(_nix_cmake_libc)
+unset(_nix_cmake_libc_dev)
# Reminder when adding new locations computed from environment variables
# please make sure to keep Help/variable/CMAKE_SYSTEM_PREFIX_PATH.rst