Add CMake install target (#286)

* Add CMake install target for libROM

* Add missing header file

* Add -Wall to debug builds

* Add option to build docs

CMakeLists.txt

@@ -37,14 +37,16 @@ option(USE_MFEM "Build libROM with MFEM" OFF)
 option(MFEM_USE_GSLIB "Build libROM with MFEM using GSLIB" OFF)
 option(BUILD_STATIC "Build libROM as a static library" OFF)
 option(ENABLE_EXAMPLES "Build examples and regression tests" ON)
+option(ENABLE_DOCS "Build docs using Doxygen" OFF)
 
 ## Set a bunch of variables to generate a configure header
 # Enable assertion checking if debug symbols generated
 if((CMAKE_BUILD_TYPE STREQUAL "Debug") OR
     (CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo"))
   set(DEBUG_CHECK_ASSERTIONS "1")
-endif((CMAKE_BUILD_TYPE STREQUAL "Debug") OR
-    (CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo"))
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+endif()
 
 set(CAROM_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
 set(CAROM_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
@@ -107,8 +109,6 @@ find_package(MPI 1.2 REQUIRED)
 
 find_package(ZLIB 1.2.3 REQUIRED)
 
-find_package(Doxygen 1.8.5)
-
 find_package(GTest 1.6.0)
 
 if (USE_MFEM)
@@ -297,7 +297,9 @@ endif(GTEST_FOUND)
 # NOTE([email protected], [email protected]): This code snippet
 # builds the Doxygen documentation, but outputs said documentation to
 # ${CMAKE_CURRENT_SOURCE_DIR}/docs)...
-if(DOXYGEN_FOUND)
+if(${ENABLE_DOCS})
+  find_package(Doxygen 1.8.5 REQUIRED)
+
   set(doxyfile ${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile)
 
   add_custom_target(
@@ -316,4 +318,4 @@ if(DOXYGEN_FOUND)
     ${CMAKE_CURRENT_BINARY_DIR}/docs/html/rom.tag)
   add_dependencies(doxygen_tagfile documentation)
 
-endif(DOXYGEN_FOUND)
+endif()

lib/CMakeLists.txt

@@ -61,7 +61,7 @@ set(module_list
   utils/mpi_utils)
 set(source_files)
 foreach(module IN LISTS module_list)
-  list(APPEND source_files ${module}.cpp)
+  list(APPEND source_files ${module}.cpp ${module}.h)
 endforeach(module) # IN LISTS module_list
 
 list(APPEND source_files
@@ -141,3 +141,24 @@ target_include_directories(ROM PUBLIC
   ${MPI_C_INCLUDE_DIRS}
   ${MFEM_C_INCLUDE_DIRS}
   PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
+
+# Find headers from the source file list that need to be installed
+set(HEADERS "")
+foreach(file IN LISTS source_files)
+  if(file MATCHES ".(hpp|h)$")
+    list(APPEND HEADERS ${file})
+  endif()
+endforeach(file)
+
+# Only install libROM.so if installing to a different directory. Otherwise, libROM.so is already in lib/
+if (NOT ${CMAKE_INSTALL_PREFIX} STREQUAL ${CMAKE_BINARY_DIR})
+  install(TARGETS ROM EXPORT ROM LIBRARY DESTINATION lib INCLUDES DESTINATION include)
+endif()
+
+# Install libROM headers
+install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/CAROM_config.h ${CMAKE_CURRENT_SOURCE_DIR}/FCMangle.h DESTINATION include)
+foreach(file IN LISTS HEADERS)
+  # get the directory component so the include directory structure is preserved
+  get_filename_component(dir ${file} DIRECTORY)
+  install(FILES ${file} DESTINATION include/${dir})
+endforeach(file)