189 lines
7 KiB
Bash
Executable file
189 lines
7 KiB
Bash
Executable file
addCMakeParams() {
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# NIXPKGS_CMAKE_PREFIX_PATH is like CMAKE_PREFIX_PATH except cmake
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# will not search it for programs
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addToSearchPath NIXPKGS_CMAKE_PREFIX_PATH $1
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}
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fixCmakeFiles() {
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# Replace occurences of /usr and /opt by /var/empty.
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echo "fixing cmake files..."
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find "$1" -type f \( -name "*.cmake" -o -name "*.cmake.in" -o -name CMakeLists.txt \) -print |
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while read fn; do
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sed -e 's^/usr\([ /]\|$\)^/var/empty\1^g' -e 's^/opt\([ /]\|$\)^/var/empty\1^g' < "$fn" > "$fn.tmp"
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mv "$fn.tmp" "$fn"
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done
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}
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cmakeConfigurePhase() {
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runHook preConfigure
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# default to CMake defaults if unset
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: ${cmakeBuildDir:=build}
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export CTEST_OUTPUT_ON_FAILURE=1
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if [ -n "${enableParallelChecking-1}" ]; then
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export CTEST_PARALLEL_LEVEL=$NIX_BUILD_CORES
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fi
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if [ -z "${dontFixCmake-}" ]; then
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fixCmakeFiles .
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fi
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if [ -z "${dontUseCmakeBuildDir-}" ]; then
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mkdir -p "$cmakeBuildDir"
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cd "$cmakeBuildDir"
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: ${cmakeDir:=..}
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else
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: ${cmakeDir:=.}
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fi
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if [ -z "${dontAddPrefix-}" ]; then
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prependToVar cmakeFlags "-DCMAKE_INSTALL_PREFIX=$prefix"
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fi
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# We should set the proper `CMAKE_SYSTEM_NAME`.
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# http://www.cmake.org/Wiki/CMake_Cross_Compiling
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#
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# Unfortunately cmake seems to expect absolute paths for ar, ranlib, and
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# strip. Otherwise they are taken to be relative to the source root of the
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# package being built.
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prependToVar cmakeFlags "-DCMAKE_CXX_COMPILER=$CXX"
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prependToVar cmakeFlags "-DCMAKE_C_COMPILER=$CC"
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prependToVar cmakeFlags "-DCMAKE_AR=$(command -v $AR)"
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prependToVar cmakeFlags "-DCMAKE_RANLIB=$(command -v $RANLIB)"
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prependToVar cmakeFlags "-DCMAKE_STRIP=$(command -v $STRIP)"
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# on macOS we want to prefer Unix-style headers to Frameworks
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# because we usually do not package the framework
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prependToVar cmakeFlags "-DCMAKE_FIND_FRAMEWORK=LAST"
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# we never want to use the global macOS SDK
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prependToVar cmakeFlags "-DCMAKE_OSX_SYSROOT="
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# correctly detect our clang compiler
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prependToVar cmakeFlags "-DCMAKE_POLICY_DEFAULT_CMP0025=NEW"
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# This installs shared libraries with a fully-specified install
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# name. By default, cmake installs shared libraries with just the
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# basename as the install name, which means that, on Darwin, they
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# can only be found by an executable at runtime if the shared
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# libraries are in a system path or in the same directory as the
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# executable. This flag makes the shared library accessible from its
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# nix/store directory.
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prependToVar cmakeFlags "-DCMAKE_INSTALL_NAME_DIR=${!outputLib}/lib"
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# The docdir flag needs to include PROJECT_NAME as per GNU guidelines,
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# try to extract it from CMakeLists.txt.
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if [[ -z "$shareDocName" ]]; then
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local cmakeLists="${cmakeDir}/CMakeLists.txt"
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if [[ -f "$cmakeLists" ]]; then
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local shareDocName="$(grep --only-matching --perl-regexp --ignore-case '\bproject\s*\(\s*"?\K([^[:space:]")]+)' < "$cmakeLists" | head -n1)"
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fi
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# The argument sometimes contains garbage or variable interpolation.
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# When that is the case, let’s fall back to the derivation name.
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if [[ -z "$shareDocName" ]] || echo "$shareDocName" | grep -q '[^a-zA-Z0-9_+-]'; then
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if [[ -n "${pname-}" ]]; then
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shareDocName="$pname"
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else
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shareDocName="$(echo "$name" | sed 's/-[^a-zA-Z].*//')"
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fi
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fi
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fi
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# This ensures correct paths with multiple output derivations
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# It requires the project to use variables from GNUInstallDirs module
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# https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html
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prependToVar cmakeFlags "-DCMAKE_INSTALL_BINDIR=${!outputBin}/bin"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_SBINDIR=${!outputBin}/sbin"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_INCLUDEDIR=${!outputInclude}/include"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_OLDINCLUDEDIR=${!outputInclude}/include"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_MANDIR=${!outputMan}/share/man"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_INFODIR=${!outputInfo}/share/info"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_DOCDIR=${!outputDoc}/share/doc/${shareDocName}"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_LIBDIR=${!outputLib}/lib"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_LIBEXECDIR=${!outputLib}/libexec"
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prependToVar cmakeFlags "-DCMAKE_INSTALL_LOCALEDIR=${!outputLib}/share/locale"
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# Don’t build tests when doCheck = false
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if [ -z "${doCheck-}" ]; then
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prependToVar cmakeFlags "-DBUILD_TESTING=OFF"
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fi
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# Always build Release, to ensure optimisation flags
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prependToVar cmakeFlags "-DCMAKE_BUILD_TYPE=${cmakeBuildType:-Release}"
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# Disable user package registry to avoid potential side effects
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# and unecessary attempts to access non-existent home folder
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# https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#disabling-the-package-registry
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prependToVar cmakeFlags "-DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON"
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prependToVar cmakeFlags "-DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF"
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prependToVar cmakeFlags "-DCMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY=OFF"
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if [ "${buildPhase-}" = ninjaBuildPhase ]; then
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prependToVar cmakeFlags "-GNinja"
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fi
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local flagsArray=()
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concatTo flagsArray cmakeFlags cmakeFlagsArray
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echoCmd 'cmake flags' "${flagsArray[@]}"
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cmake "$cmakeDir" "${flagsArray[@]}"
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if ! [[ -v enableParallelBuilding ]]; then
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enableParallelBuilding=1
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echo "cmake: enabled parallel building"
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fi
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if ! [[ -v enableParallelInstalling ]]; then
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enableParallelInstalling=1
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echo "cmake: enabled parallel installing"
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fi
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runHook postConfigure
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}
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if [ -z "${dontUseCmakeConfigure-}" -a -z "${configurePhase-}" ]; then
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setOutputFlags=
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configurePhase=cmakeConfigurePhase
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fi
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addEnvHooks "$targetOffset" addCMakeParams
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makeCmakeFindLibs() {
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isystem_seen=
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iframework_seen=
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for flag in ${NIX_CFLAGS_COMPILE-} ${NIX_LDFLAGS-}; do
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if test -n "$isystem_seen" && test -d "$flag"; then
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isystem_seen=
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addToSearchPath CMAKE_INCLUDE_PATH "${flag}"
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elif test -n "$iframework_seen" && test -d "$flag"; then
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iframework_seen=
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addToSearchPath CMAKE_FRAMEWORK_PATH "${flag}"
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else
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isystem_seen=
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iframework_seen=
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case $flag in
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-I*)
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addToSearchPath CMAKE_INCLUDE_PATH "${flag:2}"
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;;
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-L*)
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addToSearchPath CMAKE_LIBRARY_PATH "${flag:2}"
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;;
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-F*)
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addToSearchPath CMAKE_FRAMEWORK_PATH "${flag:2}"
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;;
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-isystem)
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isystem_seen=1
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;;
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-iframework)
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iframework_seen=1
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;;
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esac
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fi
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done
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}
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# not using setupHook, because it could be a setupHook adding additional
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# include flags to NIX_CFLAGS_COMPILE
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postHooks+=(makeCmakeFindLibs)
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