Cannot find load file error on cmake

[elixir-1]

Hi, I am trying to cmake s2 using the following command,
cmake -DWITH_GFLAGS=ON -WITH_GTEST=ON \ -DGTEST_ROOT=/usr/src/gtest \ -DOPENSSL_INCLUDE_DIR=/usr/include/openssl -Dabsl_DIR=/home/vidhi/Documents/BII/abseil/Source/abseil-cpp/build -DWITH_PYTHON=ON ..

I get this error on running the command,
-- The following features have been enabled:

• GFLAGS, allows changing command line flags.
• GLOG, provides logging configurability.
• SHARED_LIBS, builds shared libraries instead of static.
• PYTHON, provides python interface to S2

CMake Error at /home/vidhi/Documents/BII/abseil/Source/abseil-cpp/build/abslConfig.cmake:32 (include):
include could not find load file:

/home/vidhi/Documents/BII/abseil/Source/abseil-cpp/build/abslTargets.cmake

Call Stack (most recent call first):
CMakeLists.txt:74 (find_package)

I have abseil build and installed following the instructions from here https://abseil.io/docs/cpp/quickstart-cmake. But I cannot find this abslTargets.cmake file anywhere. What did I miss?

[jmr]

We should improve these directions.

What was your CMAKE_INSTALL_PREFIX when you installed absl?

https://github.com/abseil/abseil-cpp/blob/master/CMake/README.md#traditional-cmake-set-up

That's what you should use for your CMAKE_PREFIX_PATH when you build s2:
https://github.com/google/s2geometry#building

I don't think you need to be setting absl_DIR or OPENSSL_INCLUDE_DIR.

s2geometry/CMakeLists.txt

Line 106 in ad1489e

# OPENSSL_ROOT_DIR=/usr/local/opt/openssl cmake ..

[elixir-1]

thanks. I installed abseil using this command,
cmake -DBUILD_TESTING=ON -DABSL_USE_GOOGLETEST_HEAD=ON -DCMAKE_CXX_STANDARD=11 ..

Should I be using the command,
cmake -S /source/abseil-cpp -B /build/abseil-cpp -DCMAKE_PREFIX_PATH=/installation/dir -DCMAKE_INSTALL_PREFIX=/installation/dir -DABSL_ENABLE_INSTALL=ON -DABSL_USE_EXTERNAL_GOOGLETEST=ON -DABSL_FIND_GOOGLETEST=ON
instead?

I don't know what to replace /source/abseil-cpp and build/abseil-cpp paths with. Can you help me with that?

[elixir-1]

Hey @jmr I was able to figure out the earlier error. I am able to build using the cmake command. Although on running the make command,

make -j $(nproc)

I get the following error,

[ 34%] Building CXX object CMakeFiles/s2.dir/src/s2/util/units/length-units.cc.o
/home/vidhi/Documents/BII/s2/source/s2geometry/src/s2/s2winding_operation.cc: In member function ‘bool s2builderutil::WindingLayer::MatchesRule(int) const’:
/home/vidhi/Documents/BII/s2/source/s2geometry/src/s2/s2winding_operation.cc:411:1: warning: control reaches end of non-void function [-Wreturn-type]
411 | }
| ^
[ 34%] Linking CXX shared library libs2.so
/usr/bin/ld: /installation/dir/lib/libabsl_raw_hash_set.a(raw_hash_set.cc.o): relocation R_X86_64_TPOFF32 against symbol _ZZN4absl18container_internal10RandomSeedEvE7counter' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: /installation/dir/lib/libabsl_base.a(sysinfo.cc.o): relocation R_X86_64_TPOFF32 against _ZGVZN4absl13base_internal12GetCachedTIDEvE9thread_id' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: /installation/dir/lib/libabsl_hash.a(hash.cc.o): relocation R_X86_64_PC32 against symbol `_ZN4absl13hash_internal15MixingHashState5kSeedE' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/s2.dir/build.make:1578: libs2.so.0.10.0] Error 1
make[1]: *** [CMakeFiles/Makefile2:3237: CMakeFiles/s2.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

What is going wrong here? I appreciate your help.

[jmr]

I installed abseil using this command,
cmake -DBUILD_TESTING=ON -DABSL_USE_GOOGLETEST_HEAD=ON -DCMAKE_CXX_STANDARD=11 ..

That doesn't install it; that just makes the Makefiles. You need to run make after cmake.

When the absl instructions say /installation/dir it means you should replace it with the place you actually want to install it.

Try something like:

% cd absl-location
% mkdir build
% cd build
% cmake .. -DCMAKE_PREFIX_PATH=$HOME/app -DCMAKE_INSTALL_PREFIX=$HOME/app -DABSL_ENABLE_INSTALL=ON -DBUILD_TESTING=off -DCMAKE_VERBOSE_MAKEFILE=on -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_CXX_STANDARD=17
% make -n $(nproc) install
% cd s2-location
% mkdir build
% cd build
% cmake -DWITH_GLOG=OFF -DWITH_GFLAGS=OFF -DCMAKE_INSTALL_PREFIX=/tmp/s2-install-test -DGTEST_ROOT=/usr/src/gtest -DCMAKE_VERBOSE_MAKEFILE=on -DCMAKE_PREFIX_PATH=$HOME/app -DWITH_PYTHON=ON ..
% make -j $(nproc)

Note -DCMAKE_POSITION_INDEPENDENT_CODE=ON like in the instructions:
https://github.com/google/s2geometry#building

[elixir-1]

I followed your instructions to install abseil. I am able to cmake and make abseil using these commands,

% cd absl-location
% mkdir build
% cd build
% cmake .. -DCMAKE_PREFIX_PATH=$HOME/app -DCMAKE_INSTALL_PREFIX=$HOME/app -DABSL_ENABLE_INSTALL=ON -DBUILD_TESTING=off -DCMAKE_VERBOSE_MAKEFILE=on -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_CXX_STANDARD=17
% make -n $(nproc) install

I further run,

% cd s2-location
% mkdir build
% cd build
% cmake -DWITH_GLOG=OFF -DWITH_GFLAGS=OFF -DCMAKE_INSTALL_PREFIX=$HOME/app -DGTEST_ROOT=/usr/src/gtest -DCMAKE_VERBOSE_MAKEFILE=on -DCMAKE_PREFIX_PATH=$HOME/app -DWITH_PYTHON=ON ..

But I still get the following error on running

make -j $(nproc)

/usr/bin/ld: /usr/local/lib/libabsl_raw_hash_set.a(raw_hash_set.cc.o): relocation R_X86_64_TPOFF32 against symbol _ZZN4absl18container_internal10RandomSeedEvE7counter' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: /usr/local/lib/libabsl_base.a(sysinfo.cc.o): relocation R_X86_64_TPOFF32 against _ZGVZN4absl13base_internal12GetCachedTIDEvE9thread_id' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: /usr/local/lib/libabsl_hash.a(hash.cc.o): relocation R_X86_64_PC32 against symbol `_ZN4absl13hash_internal15MixingHashState5kSeedE' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/s2.dir/build.make:1581: libs2.so.0.10.0] Error 1
make[2]: Leaving directory '/home/vidhi/Documents/BII/s2geometry/build'
make[1]: *** [CMakeFiles/Makefile2:3240: CMakeFiles/s2.dir/all] Error 2
make[1]: Leaving directory '/home/vidhi/Documents/BII/s2geometry/build'
make: *** [Makefile:144: all] Error 2

[jmr]

Why do you have /usr/local/lib/libabsl_base.a? Was this from a previous install of absl? Do you also have $HOME/app/lib/libabsl_base.a or $HOME/app/lib/libabsl_base.so?

[elixir-1]

Hi. I was able to successfully make install s2geometry on a remote server cluster. I am not sure how to use this library in a python script. The documentation doesn't clearly mention how to use the library.

[jmr]

If it installed correctly, then you should be able to import pywraps2 as s2 and use it like the test does:
https://github.com/google/s2geometry/blob/master/src/python/pywraps2_test.py