From af00f71d481ad612a108605d39bf3be294066fca Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Fri, 9 Oct 2020 12:46:35 +0300
Subject: [PATCH] Add option MED_INT_SIZE to know when medfile is built with
 med_int=long

---
 cmake/FindMEDFile.cmake | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/cmake/FindMEDFile.cmake b/cmake/FindMEDFile.cmake
index 1e40c63..b12f50b 100644
--- a/cmake/FindMEDFile.cmake
+++ b/cmake/FindMEDFile.cmake
@@ -1,10 +1,12 @@
 # - Find MED file installation
 #
 # The following variable are set:
-#   MEDFILE_INCLUDE_DIRS
-#   MEDFILE_LIBRARIES
-#   MEDFILE_C_LIBRARIES
-#   MEDFILE_F_LIBRARIES
+#   MEDFILE_INCLUDE_DIRS  - medfile headers directory
+#   MEDFILE_LIBRARIES     - medfile libraries
+#   MEDFILE_C_LIBRARIES   - medfile C libraries
+#   MEDFILE_F_LIBRARIES   - medfile Fortran libraries
+#   MED_INT_SIZE          - size of med_int type (bytes): 4 (int) or 8 (long)
+#   MED_INT_IS_LONG       - boolean flag which is TRUE if med_int is of 8 bytes (long)
 #
 #  The CMake (or environment) variable MEDFILE_ROOT_DIR can be set to
 #  guide the detection and indicate a root directory to look into.
@@ -41,18 +43,18 @@ IF(MEDFILE_ROOT_DIR)
 ENDIF(MEDFILE_ROOT_DIR)
 
 FIND_PATH(MEDFILE_INCLUDE_DIRS med.h)
-#FIND_PROGRAM(MDUMP mdump)
 FIND_LIBRARY(MEDFILE_C_LIBRARIES NAMES medC)
 FIND_LIBRARY(MEDFILE_F_LIBRARIES NAMES med)
 IF(MEDFILE_F_LIBRARIES)
   SET(MEDFILE_LIBRARIES ${MEDFILE_C_LIBRARIES} ${MEDFILE_F_LIBRARIES})
 ELSE(MEDFILE_F_LIBRARIES)
-    SET(MEDFILE_LIBRARIES ${MEDFILE_C_LIBRARIES})
+  SET(MEDFILE_LIBRARIES ${MEDFILE_C_LIBRARIES})
 ENDIF(MEDFILE_F_LIBRARIES)
 
 INCLUDE(FindPackageHandleStandardArgs)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(MEDFile REQUIRED_VARS MEDFILE_INCLUDE_DIRS MEDFILE_LIBRARIES)
 
+SET(MED_INT_IS_LONG FALSE) # fallback value
 IF(MEDFile_FOUND) 
   # Check size of med_int
   SET(_med_int_cxx ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_med_int_size.cxx)
@@ -68,6 +70,11 @@ IF(MEDFile_FOUND)
   ELSE()
     SET(MED_INT_SIZE UNKNOWN)
   ENDIF()
+  IF(MED_INT_SIZE EQUAL 8)
+    SET(MED_INT_IS_LONG TRUE)
+  ELSE()
+    SET(MED_INT_IS_LONG FALSE)
+  ENDIF()
   MESSAGE(STATUS "Size of med_int is ${MED_INT_SIZE}")
   UNSET(_med_int_cxx)
   UNSET(_med_int_run_result)
-- 
2.39.2