Add option MED_INT_SIZE to know when medfile is built with med_int=long

diff --git a/cmake/FindMEDFile.cmake b/cmake/FindMEDFile.cmake
index 2a483da73faa3f6260cf43b865bcfaede5a1a723..1e40c63b2b08c010d10761e553d1da5bea716db5 100644 (file)
--- a/cmake/FindMEDFile.cmake
+++ b/cmake/FindMEDFile.cmake
@@ -52,3 +52,25 @@ ENDIF(MEDFILE_F_LIBRARIES)
 
 INCLUDE(FindPackageHandleStandardArgs)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(MEDFile REQUIRED_VARS MEDFILE_INCLUDE_DIRS MEDFILE_LIBRARIES)
+
+IF(MEDFile_FOUND) 
+  # Check size of med_int
+  SET(_med_int_cxx ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_med_int_size.cxx)
+  FILE(WRITE ${_med_int_cxx}
+       "#include <med.h>\n#include <stdio.h>\nint main(){printf(\"%d\", sizeof(med_int)); return 0;}")
+  TRY_RUN(_med_int_run_result _med_int_compile_results
+          ${CMAKE_BINARY_DIR} ${_med_int_cxx}
+          CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${MEDFILE_INCLUDE_DIRS};${HDF5_INCLUDE_DIR}"
+          LINK_LIBRARIES ${MEDFILE_C_LIBRARIES}
+          RUN_OUTPUT_VARIABLE _med_int_output)
+  IF(_med_int_compile_results)
+    SET(MED_INT_SIZE ${_med_int_output})
+  ELSE()
+    SET(MED_INT_SIZE UNKNOWN)
+  ENDIF()
+  MESSAGE(STATUS "Size of med_int is ${MED_INT_SIZE}")
+  UNSET(_med_int_cxx)
+  UNSET(_med_int_run_result)
+  UNSET(_med_int_compile_results)
+  UNSET(_med_int_output)
+ENDIF()