Hello,
I compiled Chrono from sources and everything went without problems. The
.exe demos work. The template project compiles without any problem as well.
I wanted to start building my project, so I started with simple examples.
Unfortunately, I can't compile the CityBus demo using CMakeLists from the
template, VS gets an error
LNK2019 unresolved external symbol "__declspec(dllimport) public: __cdecl
chrono::vehicle::citybus::CityBus::CityBus(void)"
When I modify my CMakeLists file using commands from the
\Chrono\chrono_source\projects_test_example.txt CMakeLists.txt file I get
an error
LNK1104 cannot open file 'ChronoEngine.lib'
What am I doing wrong? What am I missing? I am attaching my CMakeLists file.
Best regards
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#--------------------------------------------------------------
#
# Example of CMake configuration file to build an external
# project depending on Chrono and on optional Chrono modules.
#
# This minimal sample project can be used as a template for a
# user project. Modify sections 1, 2, and 3 below as appropriate.
#
#--------------------------------------------------------------
cmake_minimum_required(VERSION 3.10)
#--------------------------------------------------------------
# === 1 ===
# Set the project name
#--------------------------------------------------------------
project(my_example)
#--------------------------------------------------------------
# === 2 ===
# Find the Chrono package and any REQUIRED or OPTIONAL modules
# by invoking the find_package function in CONFIG mode:
# find_package(Chrono
# COMPONENTS req_module1 req_module1 ...
# OPTIONAL_COMPONENTS opt_module1 opt_module2 ...
# CONFIG)
# The following Chrono modules can be requested (case insensitive):
# Cascade, Cosimulation, Irrlicht, OpenGL, Matlab, Multicore, Gpu,
# PardisoMKL, PardisoProject, Postprocess, Python, Vehicle,
# VehicleCosimm, VSG.
# A component can be requested either as required or optional
# (see the CMake documentation for find_package).
#
# Note that you will have to set the variable Chrono_DIR to
# specify the location of the chrono-config.cmake script, if
# it is not in its default install location.
# Chrono_DIR can be either a Chrono build tree or a Chrono install tree.
#
# The following variables are set and can be used further down:
# Chrono_FOUND
# set to true if Chrono and all required components were found
# CHRONO_C_FLAGS
# CHRONO_CXX_FLAGS
# C and C++ compilation flags
# CHRONO_INCLUDE_DIRS
# additional paths for included headers
# CHRONO_LIBRARIES
# list of required libraries (with full path)
# CHRONO_LINKER_FLAGS
# additional linker flags
# CHRONO_DATA_DIR
# path to the Chrono data make_directory
#
# In addition, for each requested component [COMPONENT], the
# following variable is set to true (ON) or false (OFF):
# CHRONO_[COMPONENT]_FOUND
#
# In this example, we only request the Irrlicht module (required)
# and, for demonstration purposes, the PardisoMKL module (optional)
#--------------------------------------------------------------
LIST(APPEND CMAKE_PREFIX_PATH "${CMAKE_INSTALL_PREFIX}/../Chrono/lib")
find_package(Chrono
COMPONENTS Irrlicht
OPTIONAL_COMPONENTS PardisoMKL
CONFIG)
#--------------------------------------------------------------
# Return now if Chrono or a required component was not found.
#--------------------------------------------------------------
if (NOT Chrono_FOUND)
message("Could not find Chrono or one of its required modules")
return()
endif()
#--------------------------------------------------------------
# Important! To ensure ABI compatibility, use the same C++ standard
# as the one used to build the Chrono libraries.
#--------------------------------------------------------------
set(PROGRAM my_example)
set(CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_STANDARD ${CHRONO_CXX_STANDARD})
#--------------------------------------------------------------
# Enable creation of "application bundles" on MacOSX.
#--------------------------------------------------------------
# This is necessary for any Irrlicht-based project (like the example here).
# For OpenGL-based or non-graphics projects, this is optional and the block
# below can be removed (or else explcitly set CMAKE_MACOSX_BUNDLE to 'OFF').
#
# If creating application bundles, the build output will be named 'myexe.app'.
# Use the convenience script 'run_app.sh' available under
'contrib/appbundle-macosx/'
# to run:
# start_demo.sh myexe.app
if(APPLE)
set(CMAKE_MACOSX_BUNDLE ON)
endif()
#--------------------------------------------------------------
# Add path to Chrono headers and to headers of all dependencies
# of the requested modules.
#--------------------------------------------------------------
include_directories(${CHRONO_INCLUDE_DIRS})
set(COMPILER_FLAGS "${CH_CXX_FLAGS}")
set(LINKER_FLAGS "${CH_LINKERFLAG_EXE}")
list(APPEND LIBS "ChronoEngine")
list(APPEND LIBS "ChronoEngine_vehicle")
list(APPEND LIBS "ChronoModels_vehicle")
if(ENABLE_MODULE_IRRLICHT)
include_directories(${CH_IRRLICHT_INCLUDES})
set(COMPILER_FLAGS "${COMPILER_FLAGS} ${CH_IRRLICHT_CXX_FLAGS}")
list(APPEND LIBS "ChronoEngine_irrlicht")
list(APPEND LIBS "ChronoEngine_vehicle_irrlicht")
endif()
if(ENABLE_MODULE_VSG)
include_directories(${CH_VSG_INCLUDES})
list(APPEND LIBS "ChronoEngine_vsg")
list(APPEND LIBS "ChronoEngine_vehicle_vsg")
endif()
if(ENABLE_MODULE_PARDISO_MKL)
include_directories(${CH_MKL_INCLUDES})
set(COMPILER_FLAGS "${COMPILER_FLAGS} ${CH_MKL_CXX_FLAGS}")
set(LINKER_FLAGS "${LINKER_FLAGS} ${CH_MKL_LINK_FLAGS}")
list(APPEND LIBS "ChronoEngine_pardisomkl")
endif()
if(ENABLE_MODULE_MUMPS)
include_directories(${CH_MUMPS_INCLUDES})
list(APPEND LIBS "ChronoEngine_mumps")
endif()
if(ENABLE_MODULE_POSTPROCESS)
list(APPEND LIBS "ChronoEngine_postprocess")
endif()
#-----------------------------------------------------------------------------
# Fix for VS 2017 15.8 and newer to handle alignment specification with Eigen
#-----------------------------------------------------------------------------
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
if(MSVC AND ${MSVC_VERSION} GREATER_EQUAL 1915)
add_definitions( "-D_ENABLE_EXTENDED_ALIGNED_STORAGE" )
endif()
endif()
#--------------------------------------------------------------
# Tweaks to disable some warnings with MSVC
#--------------------------------------------------------------
if(MSVC)
add_definitions("-D_CRT_SECURE_NO_DEPRECATE") # avoids deprecation warnings
add_definitions("-D_SCL_SECURE_NO_DEPRECATE") # avoids deprecation warnings
add_definitions( "-DNOMINMAX" ) # do not use MSVC's min/max
macros
endif()
#--------------------------------------------------------------
# === 3 ===
# Add the executable from your project and specify all C++
# files in your project.
#--------------------------------------------------------------
add_executable(${PROGRAM} ${PROGRAM}.cpp)
source_group("" FILES ${PROGRAM}.cpp)
set_target_properties(${PROGRAM} PROPERTIES COMPILE_FLAGS "${COMPILER_FLAGS}"
LINK_FLAGS "${LINKER_FLAGS}")
set_property(TARGET ${PROGRAM} PROPERTY VS_DEBUGGER_WORKING_DIRECTORY
"$<TARGET_FILE_DIR:${PROGRAM}>")
target_compile_definitions(${PROGRAM} PUBLIC
"CHRONO_DATA_DIR=\"${CHRONO_DATA_DIR}\"")
target_compile_options(${PROGRAM} PUBLIC ${CHRONO_CXX_FLAGS})
target_link_options(${PROGRAM} PUBLIC ${CHRONO_LINKER_FLAGS})
target_link_libraries(${PROGRAM} ${LIBS})
#--------------------------------------------------------------
# === 4 (OPTIONAL) ===
#
# Optionally, add a custom command for copying all Chrono and
# dependency DLLs to the appropriate binary output folder.
# This function has effect only on Windows.
#
# DLLs will be copied into ${PROJECT_BINARY_DIR}/${config} by default
# or in ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${config} if only
CMAKE_RUNTIME_OUTPUT_DIRECTORY is set
# or to ${CMAKE_RUNTIME_OUTPUT_DIRECTORY_<CONFIG>} if the specific
CMAKE_RUNTIME_OUTPUT_DIRECTORY_<CONFIG> has been set
#--------------------------------------------------------------
# set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin")
# set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE "<mycustompathforrelease>")
add_DLL_copy_command()
