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Compiling Clarabel.cpp in larger CMake project #70

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787d9c2
add include directories explicitly
FreyJo Mar 28, 2024
f67a068
make building example optional
FreyJo Mar 28, 2024
ef8e4a8
allow setting CLARABEL_C_OUTPUT_DIR from outside
FreyJo Mar 28, 2024
76461c1
use PROJECT_SOURCE_DIR instead of CMAKE_PROJECT_DIR
FreyJo Apr 2, 2024
47f1beb
copy lib to CLARABEL_C_OUTPUT_DIR
FreyJo Apr 2, 2024
a959fad
this works with acados
FreyJo Jul 25, 2024
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24 changes: 21 additions & 3 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,14 @@ set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED True)


# Include directories
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include/c)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)

# SDP feature configuration
set(CLARABEL_FEATURE_SDP "none" CACHE STRING "Package for SDP to be selected")
set_property(CACHE CLARABEL_FEATURE_SDP PROPERTY STRINGS
set_property(CACHE CLARABEL_FEATURE_SDP PROPERTY STRINGS
none
sdp-accelerate
sdp-netlib
Expand All @@ -37,11 +42,24 @@ endif()
add_subdirectory(rust_wrapper)

# Add other subdirectories
add_subdirectory(examples)
option(CLARABEL_BUILD_EXAMPLES "Build examples for Clarabel.cpp" true)
if(CLARABEL_BUILD_EXAMPLES)
add_subdirectory(examples)
endif()

# Add tests
option(CLARABEL_BUILD_TESTS "Build the unit tests for Clarabel.cpp" false)
if(CLARABEL_BUILD_TESTS)
enable_testing()
add_subdirectory(tests)
endif()
endif()


message(STATUS "Clarabel.cpp: CMAKE_INSTALL_LIBDIR = ${CMAKE_INSTALL_LIBDIR}")
message(STATUS "Clarabel.cpp: LIBRARY = ${LIBRARY}")
message(STATUS "Clarabel.cpp: PROJECT_NAME = ${PROJECT_NAME}")
install(TARGETS libclarabel_c_shared EXPORT ${PROJECT_NAME}
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
)

install(EXPORT ${PROJECT_NAME} DESTINATION cmake)
31 changes: 20 additions & 11 deletions rust_wrapper/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -10,19 +10,25 @@ add_library(libclarabel_c_shared INTERFACE)
# Debug/Release flags
if(CMAKE_BUILD_TYPE MATCHES Release)
set(clarabel_c_build_flags "--release")
set(clarabel_c_output_directory "${CMAKE_SOURCE_DIR}/rust_wrapper/target/release")
set(clarabel_c_output_directory "${CMAKE_PROJECT_DIR}/rust_wrapper/target/release")
else()
set(clarabel_c_build_flags "")
set(clarabel_c_output_directory "${CMAKE_SOURCE_DIR}/rust_wrapper/target/debug")
set(clarabel_c_output_directory "${CMAKE_PROJECT_DIR}/rust_wrapper/target/debug")
endif()

if (CLARABEL_C_OUTPUT_DIR)
message(STATUS "using CLARABEL_C_OUTPUT_DIR ${CLARABEL_C_OUTPUT_DIR}")
else()
set(CLARABEL_C_OUTPUT_DIR ${clarabel_c_output_directory} PARENT_SCOPE)
set(CLARABEL_C_OUTPUT_DIR ${clarabel_c_output_directory})
message(STATUS "setting CLARABEL_C_OUTPUT_DIR to ${clarabel_c_output_directory}")
endif()

set(CLARABEL_C_OUTPUT_DIR ${clarabel_c_output_directory} PARENT_SCOPE)

# SDP feature flag
if(NOT CLARABEL_FEATURE_SDP STREQUAL "none")
# Set the Rust feature flag
set(clarabel_c_build_flags "${clarabel_c_build_flags};--features;${CLARABEL_FEATURE_SDP}")

# Define the FEATURE_SDP flag for all targets that link against clarabel_c
target_compile_definitions(libclarabel_c_static INTERFACE FEATURE_SDP)
target_compile_definitions(libclarabel_c_shared INTERFACE FEATURE_SDP)
Expand All @@ -31,26 +37,27 @@ endif()
# Add the cargo project as a custom target
add_custom_target(
libclarabel_c
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/rust_wrapper
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
# Commands for building the Rust library
COMMAND cargo build ${clarabel_c_build_flags}
COMMAND cargo install cbindgen --version 0.24.5
# Generate the C header
COMMAND cbindgen --config cbindgen.toml --crate clarabel_c --output ./headers/clarabel.h --lang c
# Generate the C++ header
COMMAND cbindgen --config cbindgen.toml --crate clarabel_c --output ./headers/clarabel.hpp
COMMAND cp ${PROJECT_SOURCE_DIR}/target/release/lib* ${CLARABEL_C_OUTPUT_DIR}
)

# Get the path to the Rust library for linking
if(APPLE)
set(LIBCLARABEL_C_SHARED_PATH "${clarabel_c_output_directory}/libclarabel_c.dylib")
set(LIBCLARABEL_C_STATIC_PATH "${clarabel_c_output_directory}/libclarabel_c.a")
set(LIBCLARABEL_C_SHARED_PATH "${CLARABEL_C_OUTPUT_DIR}/libclarabel_c.dylib")
set(LIBCLARABEL_C_STATIC_PATH "${CLARABEL_C_OUTPUT_DIR}/libclarabel_c.a")
elseif(UNIX)
set(LIBCLARABEL_C_SHARED_PATH "${clarabel_c_output_directory}/libclarabel_c.so")
set(LIBCLARABEL_C_STATIC_PATH "${clarabel_c_output_directory}/libclarabel_c.a")
set(LIBCLARABEL_C_SHARED_PATH "${CLARABEL_C_OUTPUT_DIR}/libclarabel_c.so")
set(LIBCLARABEL_C_STATIC_PATH "${CLARABEL_C_OUTPUT_DIR}/libclarabel_c.a")
elseif(WIN32)
set(LIBCLARABEL_C_SHARED_PATH "${clarabel_c_output_directory}/clarabel_c.dll.lib")
set(LIBCLARABEL_C_STATIC_PATH "${clarabel_c_output_directory}/clarabel_c.lib")
set(LIBCLARABEL_C_SHARED_PATH "${CLARABEL_C_OUTPUT_DIR}/clarabel_c.dll.lib")
set(LIBCLARABEL_C_STATIC_PATH "${CLARABEL_C_OUTPUT_DIR}/clarabel_c.lib")
endif()

# Wrap the Rust library in a CMake library target
Expand All @@ -64,3 +71,5 @@ add_dependencies(libclarabel_c_static libclarabel_c)
target_link_libraries(libclarabel_c_shared INTERFACE ${LIBCLARABEL_C_SHARED_PATH})
target_include_directories(libclarabel_c_shared INTERFACE ${CMAKE_SOURCE_DIR}/include)
add_dependencies(libclarabel_c_shared libclarabel_c)

install(FILES "${CLARABEL_C_OUTPUT_DIR}/libclarabel_c.so" DESTINATION "lib")