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nixpkgs/pkgs/development/tools/build-managers/cmake/setup-hook.sh
Matthieu Coudron a6809c0dd0 cmake: don't override cmakeDir when set (#40687)
When dontUseCmakeBuildDir is true (aka the default), it overrides
cmakeDir regardless of the package configuration.

While packaging netbee, I needed to both keep dontUseCmakeBuildDir to
true (some hardcoded paths expect the build folder) and set cmakeDir
(since CMakeList.txt was in a subfolder) which proved impossible.
Here is the fix.
2018-06-03 12:28:28 +00:00

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addCMakeParams() {
addToSearchPath CMAKE_PREFIX_PATH $1
}
fixCmakeFiles() {
# Replace occurences of /usr and /opt by /var/empty.
echo "fixing cmake files..."
find "$1" \( -type f -name "*.cmake" -o -name "*.cmake.in" -o -name CMakeLists.txt \) -print |
while read fn; do
sed -e 's^/usr\([ /]\|$\)^/var/empty\1^g' -e 's^/opt\([ /]\|$\)^/var/empty\1^g' < "$fn" > "$fn.tmp"
mv "$fn.tmp" "$fn"
done
}
cmakeConfigurePhase() {
runHook preConfigure
if [ -z "$dontFixCmake" ]; then
fixCmakeFiles .
fi
if [ -z "$dontUseCmakeBuildDir" ]; then
mkdir -p build
cd build
cmakeDir=${cmakeDir:-..}
fi
if [ -z "$dontAddPrefix" ]; then
cmakeFlags="-DCMAKE_INSTALL_PREFIX=$prefix $cmakeFlags"
fi
# We should set the proper `CMAKE_SYSTEM_NAME`.
# http://www.cmake.org/Wiki/CMake_Cross_Compiling
#
# Unfortunately cmake seems to expect absolute paths for ar, ranlib, and
# strip. Otherwise they are taken to be relative to the source root of the
# package being built.
cmakeFlags="-DCMAKE_CXX_COMPILER=$CXX $cmakeFlags"
cmakeFlags="-DCMAKE_C_COMPILER=$CC $cmakeFlags"
cmakeFlags="-DCMAKE_AR=$(command -v $AR) $cmakeFlags"
cmakeFlags="-DCMAKE_RANLIB=$(command -v $RANLIB) $cmakeFlags"
cmakeFlags="-DCMAKE_STRIP=$(command -v $STRIP) $cmakeFlags"
# on macOS we want to prefer Unix-style headers to Frameworks
# because we usually do not package the framework
cmakeFlags="-DCMAKE_FIND_FRAMEWORK=last $cmakeFlags"
# we never want to use the global macOS SDK
cmakeFlags="-DCMAKE_OSX_SYSROOT= $cmakeFlags"
# disable OSX deployment target
# we don't want our binaries to have a "minimum" OSX version
cmakeFlags="-DCMAKE_OSX_DEPLOYMENT_TARGET= $cmakeFlags"
# correctly detect our clang compiler
cmakeFlags="-DCMAKE_POLICY_DEFAULT_CMP0025=NEW $cmakeFlags"
# This installs shared libraries with a fully-specified install
# name. By default, cmake installs shared libraries with just the
# basename as the install name, which means that, on Darwin, they
# can only be found by an executable at runtime if the shared
# libraries are in a system path or in the same directory as the
# executable. This flag makes the shared library accessible from its
# nix/store directory.
cmakeFlags="-DCMAKE_INSTALL_NAME_DIR=${!outputLib}/lib $cmakeFlags"
cmakeFlags="-DCMAKE_INSTALL_LIBDIR=${!outputLib}/lib $cmakeFlags"
cmakeFlags="-DCMAKE_INSTALL_INCLUDEDIR=${!outputDev}/include $cmakeFlags"
# Avoid cmake resetting the rpath of binaries, on make install
# And build always Release, to ensure optimisation flags
cmakeFlags="-DCMAKE_BUILD_TYPE=${cmakeBuildType:-Release} -DCMAKE_SKIP_BUILD_RPATH=ON $cmakeFlags"
if [ "$buildPhase" = ninjaBuildPhase ]; then
cmakeFlags="-GNinja $cmakeFlags"
fi
echo "cmake flags: $cmakeFlags ${cmakeFlagsArray[@]}"
cmake ${cmakeDir:-.} $cmakeFlags "${cmakeFlagsArray[@]}"
if ! [[ -v enableParallelBuilding ]]; then
enableParallelBuilding=1
echo "cmake: enabled parallel building"
fi
runHook postConfigure
}
if [ -z "$dontUseCmakeConfigure" -a -z "$configurePhase" ]; then
setOutputFlags=
configurePhase=cmakeConfigurePhase
fi
addEnvHooks "$targetOffset" addCMakeParams
makeCmakeFindLibs(){
isystem_seen=
for flag in $NIX_CFLAGS_COMPILE $NIX_LDFLAGS; do
if test -n "$isystem_seen" && test -d "$flag"; then
isystem_seen=
export CMAKE_INCLUDE_PATH="$CMAKE_INCLUDE_PATH${CMAKE_INCLUDE_PATH:+:}${flag}"
else
isystem_seen=
case $flag in
-I*)
export CMAKE_INCLUDE_PATH="$CMAKE_INCLUDE_PATH${CMAKE_INCLUDE_PATH:+:}${flag:2}"
;;
-L*)
export CMAKE_LIBRARY_PATH="$CMAKE_LIBRARY_PATH${CMAKE_LIBRARY_PATH:+:}${flag:2}"
;;
-F*)
export CMAKE_FRAMEWORK_PATH="$CMAKE_FRAMEWORK_PATH${CMAKE_FRAMEWORK_PATH:+:}${flag:2}"
;;
-isystem)
isystem_seen=1
;;
esac
fi
done
}
# not using setupHook, because it could be a setupHook adding additional
# include flags to NIX_CFLAGS_COMPILE
postHooks+=(makeCmakeFindLibs)