jbeder
commented
1 year ago I think you’ll be better answers in Stack Overflow.
On Mon, Oct 31, 2022 at 4:08 PM Gustavo Valadares Barroso < @.***> wrote:
Hi. I am trying to incorporate yaml-cpp to my project. I have a "Demes" class where I need to parse a YAML file.
This is the relevant method in Demes.cpp:
include "Demes.hpp"
void Demes::parse(const std::string& fileName) { // testing YAML::Node test = YAML::LoadFile(fileName);
}
where Demes.h includes the yaml-cpp files and declares the 'parse' method. When I try to build, I get:
[ 13%] Linking CXX executable momentspp /usr/bin/ld: CMakeFiles/momentspp.dir/Demes.cpp.o: in function Demes::parse(std::cxx11::basic_string<char, std::char_traits
, std::allocator cxx11::basic_string<char, std::char_traits, std::allocator > const&)' collect2: error: ld returned 1 exit status make[2]: [src/CMakeFiles/momentspp.dir/build.make:277: src/momentspp] Error 1 make[1]: [CMakeFiles/Makefile2:127: src/CMakeFiles/momentspp.dir/all] Error 2 make: *** [Makefile:156: all] Error 2> const&)': Demes.cpp:(.text+0x1d): undefined reference to YAML::LoadFile(std:: I am using Cmake to build my project, but I am still fairly unfamiliar with it. The start of my CMakeLists.txt file is:
cmake_minimum_required (VERSION 3.5.0) project (momentspp CXX)
SET(CMAKE_CXX_FLAGS "-std=c++20 -Weffc++ -Wshadow -Wall -Wextra -ffast-math -O3 -march=native")
And the part of my CMakeLists.txt file where I look for yaml-cpp is:
FIND_PACKAGE(yaml-cpp REQUIRED) IF(yaml-cpp_FOUND) INCLUDE_DIRECTORIES(${yaml-cpp_INCLUDE_DIRS}) SET(LIBS ${LIBS} ${yaml-cpp_LIBRARIES}) MESSAGE("-- yaml-cpp libraries found here:") MESSAGE(" includes: ${yaml-cpp_INCLUDE_DIRS}") ENDIF()
and this seems to be working, as far as I can tell.
How can I fix the linking issue? Thank you, Gustavo
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Hi. I am trying to incorporate yaml-cpp to my project. I have a "Demes" class where I need to parse a YAML file.
This is the relevant method in Demes.cpp:
include "Demes.hpp"
void Demes::parse(const std::string& fileName) { // testing YAML::Node test = YAML::LoadFile(fileName);
}
where Demes.h includes the yaml-cpp files and declares the 'parse' method. When I try to build, I get:
[ 13%] Linking CXX executable momentspp /usr/bin/ld: CMakeFiles/momentspp.dir/Demes.cpp.o: in function, std::allocator > const&)'
collect2: error: ld returned 1 exit status
make[2]: [src/CMakeFiles/momentspp.dir/build.make:277: src/momentspp] Error 1
make[1]: [CMakeFiles/Makefile2:127: src/CMakeFiles/momentspp.dir/all] Error 2
make: *** [Makefile:156: all] Error 2
Demes::parse(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': Demes.cpp:(.text+0x1d): undefined reference toYAML::LoadFile(std::__cxx11::basic_string<char, std::char_traitsI am using Cmake to build my project, but I am still fairly unfamiliar with it. The start of my CMakeLists.txt file is:
cmake_minimum_required (VERSION 3.5.0) project (momentspp CXX)
SET(CMAKE_CXX_FLAGS "-std=c++20 -Weffc++ -Wshadow -Wall -Wextra -ffast-math -O3 -march=native")
And the part of my CMakeLists.txt file where I look for yaml-cpp is:
FIND_PACKAGE(yaml-cpp REQUIRED) IF(yaml-cpp_FOUND) INCLUDE_DIRECTORIES(${yaml-cpp_INCLUDE_DIRS}) SET(LIBS ${LIBS} ${yaml-cpp_LIBRARIES}) MESSAGE("-- yaml-cpp libraries found here:") MESSAGE(" includes: ${yaml-cpp_INCLUDE_DIRS}") ENDIF()
and this seems to be working, as far as I can tell.
How can I fix the linking issue? Thank you, Gustavo