cmake: move dependencies check

CMakeLists.txt

@@ -232,6 +232,7 @@ check_type_size("int *" SIZEOF_INT_P LANGUAGE CXX)
 message(STATUS "Found int * size: ${SIZEOF_INT_P}")
 cmake_pop_check_state()
 
+include(deps)
 include(cpp)
 
 include(python)

cmake/cpp.cmake

@@ -2,95 +2,6 @@ if(NOT BUILD_CXX)
   return()
 endif()
 
-# Check dependencies
-set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
-set(THREAD_PREFER_PTHREAD_FLAG TRUE)
-find_package(Threads REQUIRED)
-
-# Tell find_package() to try “Config” mode before “Module” mode if no mode was specified.
-# This should avoid find_package() to first find our FindXXX.cmake modules if
-# distro package already provide a CMake config file...
-set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
-
-# libprotobuf force us to depends on ZLIB::ZLIB target
-if(NOT BUILD_ZLIB)
- find_package(ZLIB REQUIRED)
-endif()
-if(NOT TARGET ZLIB::ZLIB)
-  message(FATAL_ERROR "Target ZLIB::ZLIB not available.")
-endif()
-
-if(NOT BUILD_absl)
-  find_package(absl REQUIRED)
-endif()
-set(ABSL_DEPS
-  absl::base
-  absl::flags
-  absl::flags_commandlineflag
-  absl::flags_parse
-  absl::flags_usage
-  absl::cord
-  absl::random_random
-  absl::raw_hash_set
-  absl::hash
-  absl::memory
-  absl::meta
-  absl::stacktrace
-  absl::status
-  absl::statusor
-  absl::str_format
-  absl::strings
-  absl::synchronization
-  absl::any
-  )
-
-if(NOT BUILD_Protobuf)
-  find_package(Protobuf REQUIRED)
-endif()
-if(NOT TARGET protobuf::libprotobuf)
-  message(FATAL_ERROR "Target protobuf::libprotobuf not available.")
-endif()
-
-if(USE_SCIP)
-  if(NOT BUILD_SCIP)
-    find_package(SCIP REQUIRED)
-  endif()
-  set(GSCIP_DIR gscip)
-endif()
-
-if(USE_COINOR)
-  if(NOT BUILD_CoinUtils)
-    find_package(CoinUtils REQUIRED)
-  endif()
-
-  if(NOT BUILD_Osi)
-    find_package(Osi REQUIRED)
-  endif()
-
-  if(NOT BUILD_Clp)
-    find_package(Clp REQUIRED)
-  endif()
-
-  if(NOT BUILD_Cgl)
-    find_package(Cgl REQUIRED)
-  endif()
-
-  if(NOT BUILD_Cbc)
-    find_package(Cbc REQUIRED)
-  endif()
-
-  set(COINOR_DEPS Coin::CbcSolver Coin::OsiCbc Coin::ClpSolver Coin::OsiClp)
-endif()
-
-# Check optional Dependencies
-if(USE_CPLEX)
-  find_package(CPLEX REQUIRED)
-endif()
-
-if(USE_XPRESS)
-  find_package(XPRESS REQUIRED)
-endif()
-
 # Main Target
 add_library(${PROJECT_NAME} "")
 # Xcode fails to build if library doesn't contains at least one source file.
@@ -272,10 +183,11 @@ foreach(PROTO_FILE IN LISTS proto_files)
 endforeach()
 #add_library(${PROJECT_NAME}_proto STATIC ${PROTO_SRCS} ${PROTO_HDRS})
 add_library(${PROJECT_NAME}_proto OBJECT ${PROTO_SRCS} ${PROTO_HDRS})
-set_target_properties(${PROJECT_NAME}_proto PROPERTIES POSITION_INDEPENDENT_CODE ON)
-set_target_properties(${PROJECT_NAME}_proto PROPERTIES CXX_STANDARD 17)
-set_target_properties(${PROJECT_NAME}_proto PROPERTIES CXX_STANDARD_REQUIRED ON)
-set_target_properties(${PROJECT_NAME}_proto PROPERTIES CXX_EXTENSIONS OFF)
+set_target_properties(${PROJECT_NAME}_proto PROPERTIES
+  POSITION_INDEPENDENT_CODE ON
+  CXX_STANDARD 17
+  CXX_STANDARD_REQUIRED ON
+  CXX_EXTENSIONS OFF)
 target_include_directories(${PROJECT_NAME}_proto PRIVATE
   ${PROJECT_SOURCE_DIR}
   ${PROJECT_BINARY_DIR}

cmake/deps.cmake

@@ -0,0 +1,87 @@
+# Check dependencies
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREAD_PREFER_PTHREAD_FLAG TRUE)
+find_package(Threads REQUIRED)
+
+# Tell find_package() to try “Config” mode before “Module” mode if no mode was specified.
+# This should avoid find_package() to first find our FindXXX.cmake modules if
+# distro package already provide a CMake config file...
+set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
+
+# libprotobuf force us to depends on ZLIB::ZLIB target
+if(NOT BUILD_ZLIB)
+ find_package(ZLIB REQUIRED)
+endif()
+if(NOT TARGET ZLIB::ZLIB)
+  message(FATAL_ERROR "Target ZLIB::ZLIB not available.")
+endif()
+
+if(NOT BUILD_absl)
+  find_package(absl REQUIRED)
+endif()
+set(ABSL_DEPS
+  absl::base
+  absl::flags
+  absl::flags_commandlineflag
+  absl::flags_parse
+  absl::flags_usage
+  absl::cord
+  absl::random_random
+  absl::raw_hash_set
+  absl::hash
+  absl::memory
+  absl::meta
+  absl::stacktrace
+  absl::status
+  absl::statusor
+  absl::str_format
+  absl::strings
+  absl::synchronization
+  absl::any
+  )
+
+if(NOT BUILD_Protobuf)
+  find_package(Protobuf REQUIRED)
+endif()
+if(NOT TARGET protobuf::libprotobuf)
+  message(FATAL_ERROR "Target protobuf::libprotobuf not available.")
+endif()
+
+if(USE_SCIP)
+  if(NOT BUILD_SCIP)
+    find_package(SCIP REQUIRED)
+  endif()
+endif()
+
+if(USE_COINOR)
+  if(NOT BUILD_CoinUtils)
+    find_package(CoinUtils REQUIRED)
+  endif()
+
+  if(NOT BUILD_Osi)
+    find_package(Osi REQUIRED)
+  endif()
+
+  if(NOT BUILD_Clp)
+    find_package(Clp REQUIRED)
+  endif()
+
+  if(NOT BUILD_Cgl)
+    find_package(Cgl REQUIRED)
+  endif()
+
+  if(NOT BUILD_Cbc)
+    find_package(Cbc REQUIRED)
+  endif()
+
+  set(COINOR_DEPS Coin::CbcSolver Coin::OsiCbc Coin::ClpSolver Coin::OsiClp)
+endif()
+
+# Check optional Dependencies
+if(USE_CPLEX)
+  find_package(CPLEX REQUIRED)
+endif()
+
+if(USE_XPRESS)
+  find_package(XPRESS REQUIRED)
+endif()