Merge pull request #306 from sandro-elsweijer/feature-cmake-use-syste…

…m-sc

CMake option to use a system installed sc

CMakeLists.txt

@@ -21,9 +21,14 @@ message(STATUS "p4est ${PROJECT_VERSION} "
 # Skip `libsc` if already registered. This is useful when `p4est` is added as a
 # dependency by another software project which in turn already registered `libsc`.
 if(NOT TARGET SC::SC)
-  include(cmake/GitSubmodule.cmake)
-  git_submodule("${PROJECT_SOURCE_DIR}/sc")
-  add_subdirectory(sc)
+  # Option to use an already installed SC library.
+  if ( P4EST_USE_SYSTEM_SC )
+      find_package( SC REQUIRED )
+  else()
+    include(cmake/GitSubmodule.cmake)
+    git_submodule("${PROJECT_SOURCE_DIR}/sc")
+    add_subdirectory(sc)
+  endif()
 endif()
 
 # --- configure p4est

cmake/options.cmake

@@ -5,6 +5,8 @@ option(P4EST_BUILD_TESTING "build p4est testing" on)
 
 option(enable-file-deprecated "use deprecated data file format" off)
 
+option( P4EST_USE_SYSTEM_SC "Use system-installed sc library" OFF )
+
 option(vtk_binary "VTK binary interface" on)
 if(vtk_binary)
   set(P4EST_ENABLE_VTK_BINARY 1)

doc/author_elsweijer.txt

@@ -0,0 +1 @@
+I place my contributions to p4est under the FreeBSD license. Sandro Elsweijer ([email protected])