ENH: initial fortran support

1 files changed, 83 insertions, 0 deletions

diff --git a/Modules/CMakeDetermineFortranCompiler.cmake b/Modules/CMakeDetermineFortranCompiler.cmake
new file mode 100644
index 0000000..52004ee
--- /dev/null
+++ b/Modules/CMakeDetermineFortranCompiler.cmake
@@ -0,0 +1,83 @@
+# determine the compiler to use for C programs
+# NOTE, a generator may set CMAKE_C_COMPILER before
+# loading this file to force a compiler.
+# use environment variable CCC first if defined by user, next use 
+# the cmake variable CMAKE_GENERATOR_CC which can be defined by a generator
+# as a default compiler
+
+IF(NOT CMAKE_FORTRAN_COMPILER)
+  # prefer the environment variable CC
+  IF($ENV{FC} MATCHES ".+")
+    GET_FILENAME_COMPONENT(CMAKE_FORTRAN_COMPILER_INIT $ENV{FC} PROGRAM PROGRAM_ARGS CMAKE_FORTRAN_FLAGS_ENV_INIT)
+    IF(EXISTS ${CMAKE_FORTRAN_COMPILER_INIT})
+    ELSE(EXISTS ${CMAKE_FORTRAN_COMPILER_INIT})
+      MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable FC:\n$ENV{FC}.") 
+    ENDIF(EXISTS ${CMAKE_FORTRAN_COMPILER_INIT})
+  ENDIF($ENV{FC} MATCHES ".+")
+
+  # next try prefer the compiler specified by the generator
+  IF(CMAKE_GENERATOR_FC) 
+    IF(NOT CMAKE_FORTRAN_COMPILER_INIT)
+      SET(CMAKE_FORTRAN_COMPILER_INIT ${CMAKE_GENERATOR_FC})
+    ENDIF(NOT CMAKE_FORTRAN_COMPILER_INIT)
+  ENDIF(CMAKE_GENERATOR_FC)
+
+
+  # if no compiler has been specified yet, then look for one
+  IF(NOT CMAKE_FORTRAN_COMPILER_INIT)
+  # if not in the envionment then search for the compiler in the path
+    SET(CMAKE_FORTRAN_COMPILER_LIST g77 ifort f77 f90 epcf90 efc ecc)  
+    FIND_PROGRAM(CMAKE_FORTRAN_COMPILER_FULLPATH NAMES ${CMAKE_FORTRAN_COMPILER_LIST} )
+    GET_FILENAME_COMPONENT(CMAKE_FORTRAN_COMPILER_INIT
+                           ${CMAKE_FORTRAN_COMPILER_FULLPATH} NAME)
+    SET(CMAKE_FORTRAN_COMPILER_FULLPATH "${CMAKE_FORTRAN_COMPILER_FULLPATH}" CACHE INTERNAL "full path to the compiler cmake found")
+  ENDIF(NOT CMAKE_FORTRAN_COMPILER_INIT)
+
+  SET(CMAKE_FORTRAN_COMPILER ${CMAKE_FORTRAN_COMPILER_INIT} CACHE STRING "Fortran compiler")
+ENDIF(NOT CMAKE_FORTRAN_COMPILER)
+
+MARK_AS_ADVANCED(CMAKE_FORTRAN_COMPILER)  
+
+FIND_PROGRAM(CMAKE_AR NAMES ar )
+
+FIND_PROGRAM(CMAKE_RANLIB NAMES ranlib)
+IF(NOT CMAKE_RANLIB)
+   SET(CMAKE_RANLIB : CACHE INTERNAL "noop for ranlib")
+ENDIF(NOT CMAKE_RANLIB)
+MARK_AS_ADVANCED(CMAKE_RANLIB)
+
+IF(NOT CMAKE_COMPILER_IS_GNUG77_RUN)
+  # test to see if the Fortran compiler is gnu
+  
+  IF(CMAKE_FORTRAN_FLAGS)
+    SET(CMAKE_BOOT_FORTRAN_FLAGS ${CMAKE_FORTRAN_FLAGS})
+  ELSE(CMAKE_FORTRAN_FLAGS)
+    SET(CMAKE_BOOT_FORTRAN_FLAGS $ENV{FFLAGS})
+  ENDIF(CMAKE_FORTRAN_FLAGS)
+  EXEC_PROGRAM(${CMAKE_FORTRAN_COMPILER} ARGS ${CMAKE_BOOT_FORTRAN_FLAGS} -E "\"${CMAKE_ROOT}/Modules/CMakeTestGNU.c\"" OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
+  SET(CMAKE_COMPILER_IS_GNUG77_RUN 1)
+  IF(NOT CMAKE_COMPILER_RETURN)
+    IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
+      SET(CMAKE_COMPILER_IS_GNUG77 1)
+      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
+        "Determining if the Fortran compiler is GNU succeeded with "
+        "the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
+    ELSE("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
+      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeOutput.log
+        "Determining if the Fortran compiler is GNU failed with "
+        "the following output:\n${CMAKE_COMPILER_OUTPUT}\n\n")
+    ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_GNU.*" )
+    IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
+      SET(CMAKE_COMPILER_IS_MINGW 1)
+    ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_MINGW.*" )
+    IF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
+      SET(CMAKE_COMPILER_IS_CYGWIN 1)
+    ENDIF("${CMAKE_COMPILER_OUTPUT}" MATCHES ".*THIS_IS_CYGWIN.*" )
+  ENDIF(NOT CMAKE_COMPILER_RETURN)
+ENDIF(NOT CMAKE_COMPILER_IS_GNUG77_RUN)
+
+
+# configure variables set in this file for fast reload later on
+CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in 
+               ${CMAKE_BINARY_DIR}/CMakeFortranCompiler.cmake IMMEDIATE)
+MARK_AS_ADVANCED(CMAKE_AR)