ENH: more uniform approach to enable language, one step closer to being able to enable a language without modifing cmake source code

1 files changed, 120 insertions, 0 deletions

diff --git a/Modules/CMakeFortranInformation.cmake b/Modules/CMakeFortranInformation.cmake
new file mode 100644
index 0000000000..fa4894af95
--- /dev/null
+++ b/Modules/CMakeFortranInformation.cmake
@@ -0,0 +1,120 @@
+# This file sets the basic flags for the Fortran language in CMake.
+# It also loads the available platform file for the system-compiler
+# if it exists.
+
+GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_Fortran_COMPILER} NAME_WE)
+# since the gnu compiler has several names force g++
+IF(CMAKE_COMPILER_IS_GNUG77)
+  SET(CMAKE_BASE_NAME g77)
+ENDIF(CMAKE_COMPILER_IS_GNUG77)
+SET(CMAKE_SYSTEM_AND_Fortran_COMPILER_INFO_FILE
+  ${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}.cmake)
+INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME} OPTIONAL)
+
+
+# Create a set of shared library variable specific to Fortran
+# For 90% of the systems, these are the same flags as the C versions
+# so if these are not set just copy the flags from the c version
+IF(NOT CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS)
+  SET(CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
+ENDIF(NOT CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_LIBRARY_Fortran_FLAGS)
+  SET(CMAKE_SHARED_LIBRARY_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS})
+ENDIF(NOT CMAKE_SHARED_LIBRARY_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS)
+  SET(CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS ${CMAKE_SHARED_LIBRARY_LINK_FLAGS})
+ENDIF(NOT CMAKE_SHARED_LIBRARY_LINK_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG)
+  SET(CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_FLAG}) 
+ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG)
+
+IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP)
+  SET(CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_FLAG_SEP})
+ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_Fortran_FLAG_SEP)
+
+# repeat for modules
+IF(NOT CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS)
+  SET(CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS})
+ENDIF(NOT CMAKE_SHARED_MODULE_CREATE_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_MODULE_Fortran_FLAGS)
+  SET(CMAKE_SHARED_MODULE_Fortran_FLAGS ${CMAKE_SHARED_MODULE_C_FLAGS})
+ENDIF(NOT CMAKE_SHARED_MODULE_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_MODULE_LINK_Fortran_FLAGS)
+  SET(CMAKE_SHARED_MODULE_LINK_Fortran_FLAGS ${CMAKE_SHARED_MODULE_LINK_FLAGS})
+ENDIF(NOT CMAKE_SHARED_MODULE_LINK_Fortran_FLAGS)
+
+IF(NOT CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG)
+  SET(CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG ${CMAKE_SHARED_MODULE_RUNTIME_FLAG}) 
+ENDIF(NOT CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG)
+
+IF(NOT CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG_SEP)
+  SET(CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG_SEP ${CMAKE_SHARED_MODULE_RUNTIME_FLAG_SEP})
+ENDIF(NOT CMAKE_SHARED_MODULE_RUNTIME_Fortran_FLAG_SEP)
+
+SET(CMAKE_VERBOSE_MAKEFILE FALSE CACHE BOOL "If this value is on, makefiles will be generated without the .SILENT directive, and all commands will be echoed to the console during the make.  This is useful for debugging only. With Visual Studio IDE projects all commands are done without /nologo.")
+
+SET (CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS_ENV_INIT} $ENV{FFLAGS} ${CMAKE_Fortran_FLAGS_INIT}" CACHE STRING
+     "Flags for Fortran compiler.")
+
+
+
+INCLUDE(CMakeCommonLanguageInclude)
+
+# now define the following rule variables
+# CMAKE_Fortran_CREATE_SHARED_LIBRARY
+# CMAKE_Fortran_CREATE_SHARED_MODULE
+# CMAKE_Fortran_CREATE_STATIC_LIBRARY
+# CMAKE_Fortran_COMPILE_OBJECT
+# CMAKE_Fortran_LINK_EXECUTABLE
+
+# create a Fortran shared library
+IF(NOT CMAKE_Fortran_CREATE_SHARED_LIBRARY)
+  SET(CMAKE_Fortran_CREATE_SHARED_LIBRARY
+      "<CMAKE_Fortran_COMPILER> <CMAKE_SHARED_LIBRARY_Fortran_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_Fortran_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
+ENDIF(NOT CMAKE_Fortran_CREATE_SHARED_LIBRARY)
+
+# create a Fortran shared module just copy the shared library rule
+IF(NOT CMAKE_Fortran_CREATE_SHARED_MODULE)
+  SET(CMAKE_Fortran_CREATE_SHARED_MODULE ${CMAKE_Fortran_CREATE_SHARED_LIBRARY})
+ENDIF(NOT CMAKE_Fortran_CREATE_SHARED_MODULE)
+
+# create a Fortran static library
+IF(NOT CMAKE_Fortran_CREATE_STATIC_LIBRARY)
+  SET(CMAKE_Fortran_CREATE_STATIC_LIBRARY
+      "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS> "
+      "<CMAKE_RANLIB> <TARGET> ")
+ENDIF(NOT CMAKE_Fortran_CREATE_STATIC_LIBRARY)
+
+# compile a Fortran file into an object file
+IF(NOT CMAKE_Fortran_COMPILE_OBJECT)
+  SET(CMAKE_Fortran_COMPILE_OBJECT
+    "<CMAKE_Fortran_COMPILER> -o <OBJECT>  <FLAGS> -c <SOURCE>")
+ENDIF(NOT CMAKE_Fortran_COMPILE_OBJECT)
+
+# link a fortran program
+IF(NOT CMAKE_Fortran_LINK_EXECUTABLE)
+  SET(CMAKE_Fortran_LINK_EXECUTABLE
+    "<CMAKE_Fortran_COMPILER> <CMAKE_Fortran_LINK_FLAGS> <LINK_FLAGS> <FLAGS> <OBJECTS>  -o <TARGET> <LINK_LIBRARIES>")
+ENDIF(NOT CMAKE_Fortran_LINK_EXECUTABLE)
+
+
+# Load the user define rules
+IF(CMAKE_USER_MAKE_RULES_OVERRIDE)
+   INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE})
+ENDIF(CMAKE_USER_MAKE_RULES_OVERRIDE)
+
+
+MARK_AS_ADVANCED(
+CMAKE_Fortran_FLAGS
+CMAKE_Fortran_FLAGS_DEBUG
+CMAKE_Fortran_FLAGS_MINSIZEREL
+CMAKE_Fortran_FLAGS_RELEASE
+CMAKE_Fortran_FLAGS_RELWITHDEBINFO)
+
+# set this variable so we can avoid loading this more than once.
+SET(CMAKE_Fortran_INFOMATION_LOADED 1)