023e54404c
Eigen assumes that CMAKE_INSTALL_INCLUDEDIR is a path relative to CMAKE_INSTALL_PREFIX (typically "include"), but CMake supports it being an absolute path, which is the case in Nixpkgs. This resulted in EIGEN3_INCLUDE_DIR being set to "/nix/store/…eigen…//nix/store/…eigen…/include/eigen3". GNUInstallDirs_get_absolute_install_dir requires CMake 3.7.
49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -1,6 +1,6 @@
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project(Eigen3)
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-cmake_minimum_required(VERSION 2.8.5)
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+cmake_minimum_required(VERSION 3.7)
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# guard against in-source builds
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@@ -408,13 +408,6 @@ install(FILES
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DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel
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)
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-if(EIGEN_BUILD_PKGCONFIG)
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- configure_file(eigen3.pc.in eigen3.pc @ONLY)
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- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/eigen3.pc
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- DESTINATION ${PKGCONFIG_INSTALL_DIR}
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- )
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-endif()
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-
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add_subdirectory(Eigen)
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add_subdirectory(doc EXCLUDE_FROM_ALL)
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@@ -510,8 +503,15 @@ set ( EIGEN_VERSION_MAJOR ${EIGEN_WORLD_VERSION} )
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set ( EIGEN_VERSION_MINOR ${EIGEN_MAJOR_VERSION} )
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set ( EIGEN_VERSION_PATCH ${EIGEN_MINOR_VERSION} )
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set ( EIGEN_DEFINITIONS "")
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-set ( EIGEN_INCLUDE_DIR "${CMAKE_INSTALL_PREFIX}/${INCLUDE_INSTALL_DIR}" )
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set ( EIGEN_ROOT_DIR ${CMAKE_INSTALL_PREFIX} )
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+GNUInstallDirs_get_absolute_install_dir(EIGEN_INCLUDE_DIR INCLUDE_INSTALL_DIR)
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+
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+if(EIGEN_BUILD_PKGCONFIG)
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+ configure_file(eigen3.pc.in eigen3.pc @ONLY)
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+ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/eigen3.pc
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+ DESTINATION ${PKGCONFIG_INSTALL_DIR}
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+ )
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+endif()
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# Interface libraries require at least CMake 3.0
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if (NOT CMAKE_VERSION VERSION_LESS 3.0)
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--- a/eigen3.pc.in
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+++ b/eigen3.pc.in
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@@ -6,4 +6,4 @@ Description: A C++ template library for linear algebra: vectors, matrices, and r
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Requires:
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Version: @EIGEN_VERSION_NUMBER@
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Libs:
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-Cflags: -I${prefix}/@INCLUDE_INSTALL_DIR@
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+Cflags: -I@EIGEN_INCLUDE_DIR@
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