Update CMakeLists.txt

softwareQinc · Jan 17, 2024 · e8eb5d3 · e8eb5d3
1 parent c32cfb8
commit e8eb5d3
Showing 1 changed file with 75 additions and 62 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -6,94 +6,107 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 enable_testing()
 
-#### Eigen3
+# Eigen3
 message(STATUS "Detecting Eigen3")
-#### Location specified via an environment variable
+# Location specified via an environment variable
 set(LOCATION_SET_VIA_ENV FALSE)
-if (DEFINED ENV{EIGEN3_INSTALL_DIR})
-    set(EIGEN3_INSTALL_DIR_ENV $ENV{EIGEN3_INSTALL_DIR})
-    set(LOCATION_SET_VIA_ENV TRUE)
-endif ()
-#### Location set via CMake variable, trumps all other settings
-set(EIGEN3_INSTALL_DIR "" CACHE PATH "Path to Eigen3")
-if (NOT ${EIGEN3_INSTALL_DIR} STREQUAL "")
-    message(STATUS "Overriding automatic Eigen3 detection (EIGEN3_INSTALL_DIR CMake variable)")
-    if (IS_DIRECTORY ${EIGEN3_INSTALL_DIR})
-        message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INSTALL_DIR})")
-        include_directories(SYSTEM "${EIGEN3_INSTALL_DIR}")
-    else ()
-        message(FATAL_ERROR "Invalid path to Eigen3 installation")
-    endif ()
-    #### Location set via environment variable
-elseif (LOCATION_SET_VIA_ENV)
-    message(STATUS "Overriding automatic Eigen3 detection (EIGEN3_INSTALL_DIR environment variable)")
-    if (IS_DIRECTORY ${EIGEN3_INSTALL_DIR_ENV})
-        message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INSTALL_DIR_ENV})")
-        include_directories(SYSTEM "${EIGEN3_INSTALL_DIR_ENV}")
-    else ()
-        message(FATAL_ERROR "Invalid path to Eigen3 installation")
-    endif ()
-    #### Try to find the location automatically
-else ()
-    find_package(Eigen3 3.0 QUIET NO_MODULE)
-    if (NOT TARGET Eigen3::Eigen) # did not find Eigen3 automatically
-        message(FATAL_ERROR "Eigen3 not detected! Please point EIGEN3_INSTALL_DIR to your Eigen3 location when building with CMake, for example
+if(DEFINED ENV{EIGEN3_INSTALL_DIR})
+  set(EIGEN3_INSTALL_DIR_ENV $ENV{EIGEN3_INSTALL_DIR})
+  set(LOCATION_SET_VIA_ENV TRUE)
+endif()
+# Location set via CMake variable, trumps all other settings
+set(EIGEN3_INSTALL_DIR
+    ""
+    CACHE PATH "Path to Eigen3")
+if(NOT ${EIGEN3_INSTALL_DIR} STREQUAL "")
+  message(
+    STATUS
+      "Overriding automatic Eigen3 detection (EIGEN3_INSTALL_DIR CMake variable)"
+  )
+  if(IS_DIRECTORY ${EIGEN3_INSTALL_DIR})
+    message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INSTALL_DIR})")
+    include_directories(SYSTEM "${EIGEN3_INSTALL_DIR}")
+  else()
+    message(FATAL_ERROR "Invalid path to Eigen3 installation")
+  endif()
+  # Location set via environment variable
+elseif(LOCATION_SET_VIA_ENV)
+  message(
+    STATUS
+      "Overriding automatic Eigen3 detection (EIGEN3_INSTALL_DIR environment variable)"
+  )
+  if(IS_DIRECTORY ${EIGEN3_INSTALL_DIR_ENV})
+    message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INSTALL_DIR_ENV})")
+    include_directories(SYSTEM "${EIGEN3_INSTALL_DIR_ENV}")
+  else()
+    message(FATAL_ERROR "Invalid path to Eigen3 installation")
+  endif()
+  # Try to find the location automatically
+else()
+  find_package(Eigen3 3.0 QUIET NO_MODULE)
+  if(NOT TARGET Eigen3::Eigen) # did not find Eigen3 automatically
+    message(
+      FATAL_ERROR
+        "Eigen3 not detected! Please point EIGEN3_INSTALL_DIR to your Eigen3 location when building with CMake, for example
     cmake --build build -DEIGEN3_INSTALL_DIR=$HOME/eigen3
 or set the EIGEN3_INSTALL_DIR environment variable to point to your Eigen3 installation, for example (UNIX/Linux)
     export EIGEN3_INSTALL_DIR=$HOME/eigen3")
-        #### Eigen3
-        message(STATUS "Detecting Eigen3")
-    endif ()
-    message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INCLUDE_DIR})")
-    # Eigen3 header-only dependencies to be injected in the main CMakeLists.txt
-    set(STAB_EIGEN3_LINK_DEPS Eigen3::Eigen)
-endif ()
+    # Eigen3
+    message(STATUS "Detecting Eigen3")
+  endif()
+  message(STATUS "Detecting Eigen3 - done (in ${EIGEN3_INCLUDE_DIR})")
+  # Eigen3 header-only dependencies to be injected in the main CMakeLists.txt
+  set(STAB_EIGEN3_LINK_DEPS Eigen3::Eigen)
+endif()
 
 # Enable Quantum++ support
 option(USE_QPP "Enable Quantum++ support" OFF)
-if (${USE_QPP})
-    find_package(qpp REQUIRED)
-    add_compile_definitions(USE_QPP)
-endif ()
+if(${USE_QPP})
+  find_package(qpp REQUIRED)
+  add_compile_definitions(USE_QPP)
+endif()
 
 include_directories(${PROJECT_SOURCE_DIR}/src)
 file(GLOB SOURCES CONFIGURE_DEPENDS "src/*.cpp")
 
-#include_directories(${PROJECT_SOURCE_DIR}/simplex/src/include)
+# include_directories(${PROJECT_SOURCE_DIR}/simplex/src/include)
 
-#### qasmtools_stab library
+# qasmtools_stab library
 add_library(qasmtools INTERFACE)
-target_include_directories(qasmtools INTERFACE
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/qasmtools/include/>)
+target_include_directories(
+  qasmtools
+  INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/qasmtools/include/>)
 
-#### Export stab-common library symbols on Windows
-if (WIN32)
-    if (MSVC)
-        set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-    endif ()
-endif ()
+# Export stab-common library symbols on Windows
+if(WIN32)
+  if(MSVC)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+  endif()
+endif()
 
 # add_library(stab-common SHARED ${SOURCES} "benchmarking/stab_tests.cpp")
 add_library(stab-common SHARED ${SOURCES})
 
-if (${USE_QPP})
-    target_link_libraries(stab-common ${QPP_LINK_DEPS} libqpp)
-else ()
-    target_link_libraries(stab-common ${STAB_EIGEN3_LINK_DEPS})
-endif ()
+if(${USE_QPP})
+  target_link_libraries(stab-common ${QPP_LINK_DEPS} libqpp)
+else()
+  target_link_libraries(stab-common ${STAB_EIGEN3_LINK_DEPS})
+endif()
 
-#### Maximum number of qubits allowed in qpp::AffineState::to_ket()
-set(MAX_QUBITS_STATE_VECTOR "16" CACHE STRING "Maximum number of qubits allowed in AffineState::to_ket()")
+# Maximum number of qubits allowed in qpp::AffineState::to_ket()
+set(MAX_QUBITS_STATE_VECTOR
+    "16"
+    CACHE STRING "Maximum number of qubits allowed in AffineState::to_ket()")
 add_compile_definitions(MAX_QUBITS_STATE_VECTOR=${MAX_QUBITS_STATE_VECTOR})
 
 add_executable(stab stab/main.cpp)
 target_link_libraries(stab stab-common qasmtools)
-if (${USE_QPP})
-    target_link_libraries(stab ${QPP_LINK_DEPS} libqpp)
-endif ()
+if(${USE_QPP})
+  target_link_libraries(stab ${QPP_LINK_DEPS} libqpp)
+endif()
 
 # add_executable(bench_stab benchmarking/stab_tests.cpp)
 # target_link_libraries(bench_stab stab-common)
 
-#### Unit testing
+# Unit testing
 add_subdirectory(${CMAKE_SOURCE_DIR}/unit_tests)