From 6fcd316f2366a38ddfda0aabcf536b1d475e51b7 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Mon, 30 Nov 2015 14:48:11 +0100
Subject: Extend superlu cmake script to check version

---
 cmake/FindSuperLU.cmake | 52 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 48 insertions(+), 4 deletions(-)

(limited to 'cmake')

diff --git a/cmake/FindSuperLU.cmake b/cmake/FindSuperLU.cmake
index 8a3df3666..259ed7320 100644
--- a/cmake/FindSuperLU.cmake
+++ b/cmake/FindSuperLU.cmake
@@ -17,10 +17,54 @@ find_path(SUPERLU_INCLUDES
   SRC
 )
 
-find_library(SUPERLU_LIBRARIES superlu PATHS $ENV{SUPERLUDIR} ${LIB_INSTALL_DIR} PATH_SUFFIXES lib)
-  
+find_library(SUPERLU_LIBRARIES NAMES "superlu_4.3" "superlu_4.2" "superlu_4.1" "superlu_4.0" "superlu_3.1" "superlu_3.0" "superlu" PATHS $ENV{SUPERLUDIR} ${LIB_INSTALL_DIR} PATH_SUFFIXES lib)
+
+if(SUPERLU_INCLUDES AND SUPERLU_LIBRARIES)
+
+include(CheckCXXSourceCompiles)
+include(CMakePushCheckState)
+cmake_push_check_state()
+
+set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${SUPERLU_INCLUDES})
+
+# check whether struct mem_usage_t is globally defined
+check_cxx_source_compiles("
+typedef int int_t;
+#include <supermatrix.h>
+#include <slu_util.h>
+int main() {
+  mem_usage_t mem;
+  return 0;
+}"
+SUPERLU_HAS_GLOBAL_MEM_USAGE_T)
+
+
+check_cxx_source_compiles("
+typedef int int_t;
+#include <supermatrix.h>
+#include <superlu_enum_consts.h>
+int main() {
+  return SLU_SINGLE;
+}"
+SUPERLU_HAS_CLEAN_ENUMS)
+
+if(SUPERLU_HAS_CLEAN_ENUMS)
+  # at least 4.3
+  set(SUPERLU_VERSION_VAR "4.3")
+elseif(SUPERLU_HAS_GLOBAL_MEM_USAGE_T)
+  # at least 4.3
+  set(SUPERLU_VERSION_VAR "4.0")
+else()
+  set(SUPERLU_VERSION_VAR "3.0")
+endif()
+
+cmake_pop_check_state()
+
+endif()
+
 include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(SUPERLU DEFAULT_MSG
-                                  SUPERLU_INCLUDES SUPERLU_LIBRARIES)
+find_package_handle_standard_args(SUPERLU
+                                  REQUIRED_VARS SUPERLU_INCLUDES SUPERLU_LIBRARIES
+                                  VERSION_VAR SUPERLU_VERSION_VAR)
 
 mark_as_advanced(SUPERLU_INCLUDES SUPERLU_LIBRARIES)
-- 
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