[CMake] Added variable OGS_CHECK_HEADER_COMPILATION.

CMakeLists.txt

@@ -181,6 +181,8 @@ option(OGS_ENABLE_ELEMENT_CUBOID  "Build FEM elements for cuboids (quads, hexahe
 option(OGS_ENABLE_ELEMENT_PRISM   "Build FEM elements for prisms." ON)
 option(OGS_ENABLE_ELEMENT_PYRAMID "Build FEM elements for pyramids." ON)
 
+option(OGS_CHECK_HEADER_COMPILATION "Check header for standalone compilation." OFF)
+
 ###################
 ### Definitions ###
 ###################

scripts/cmake/CheckHeaderCompilation.cmake

@@ -6,6 +6,9 @@ set(CMAKE_REQUIRED_QUIET TRUE)
 
 # Checks header for standalone compilation
 function(check_header_compilation)
+    if(NOT OGS_CHECK_HEADER_COMPILATION)
+        return()
+    endif()
     string(REPLACE "${PROJECT_SOURCE_DIR}/" "" DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
     message(STATUS "Checking header compilation for ${DIRECTORY} ...")
     include(CheckCXXSourceCompiles)