5cb6e6ee21
This didn't work previously ... but now it does. I think setting the standard explicitly is what did the trick, but it's slightly unclear to me why. Either way this means that Abseil is no longer constantly getting recompiled when building Nix, which is nice. Change-Id: I377f7b68bf1ef9045df6a2eee8fdd0c92f243547 Reviewed-on: https://cl.tvl.fyi/c/depot/+/921 Tested-by: BuildkiteCI Reviewed-by: lukegb <lukegb@tvl.fyi>
44 lines
1.6 KiB
CMake
44 lines
1.6 KiB
CMake
# -*- mode: cmake; -*-
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cmake_minimum_required(VERSION 3.16)
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project(nix CXX)
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set(CMAKE_CXX_STANDARD 17)
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# Export compile_commands.json which can be used by tools such as
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# clangd and clang-tidy.
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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# Provide an output path for pkgconfig.
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include(GNUInstallDirs)
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set(PKGCONFIG_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
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# The following lines import CMake-native dependencies which may
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# contain useful definitions. Other dependencies are not treated
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# specially by CMake and are only linked into the resulting binary.
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find_package(BZip2)
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find_package(Boost COMPONENTS context) # probably coroutine + ::headers, lets find out
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find_package(CURL)
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find_package(SQLite3)
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find_package(Threads)
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find_package(LibLZMA)
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find_package(absl REQUIRED)
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# Linking precompiled glog binaries (linked against libstdc++) leads
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# to working binaries that do not output log messages. It seems that
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# in order to use glog with LLVM & libc++, one needs to make glog a
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# part of the local project build.
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add_subdirectory(glog)
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# generate a configuration file (autoheader-style) to configure
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# certain symbols that Nix depends on.
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configure_file(config.h.in nix_config.h @ONLY)
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INSTALL(FILES "${PROJECT_BINARY_DIR}/nix_config.h" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/nix")
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# install corepkgs
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configure_file(corepkgs/config.nix.in config.nix @ONLY)
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INSTALL(DIRECTORY corepkgs
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DESTINATION ${CMAKE_INSTALL_DATADIR}/nix
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FILES_MATCHING
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PATTERN "*.nix")
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INSTALL(FILES "${PROJECT_BINARY_DIR}/config.nix" DESTINATION "${CMAKE_INSTALL_DATADIR}/nix/corepkgs")
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add_subdirectory(src)
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