From 2a09d199173856ffcb897654b26434344c4be957 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?=
<christoph.grueninger@iws.uni-stuttgart.de>
Date: Sun, 20 Mar 2016 17:09:47 +0100
Subject: [PATCH] [CMake] Check for SuiteSparse >= 4.3 for using SPQR
Fixes dune-istl/#5
---
cmake/modules/FindSuiteSparse.cmake | 30 +++++++++++++++++++++++++++++
config.h.cmake | 3 ++-
2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/cmake/modules/FindSuiteSparse.cmake b/cmake/modules/FindSuiteSparse.cmake
index 9adb25fc7..e0bfc918a 100644
--- a/cmake/modules/FindSuiteSparse.cmake
+++ b/cmake/modules/FindSuiteSparse.cmake
@@ -182,6 +182,35 @@ foreach(_component ${SUITESPARSE_COMPONENTS})
${_component}_LIBRARY)
endforeach()
+# check version, for SPQR we need at least SuiteSparse 4.3
+if(SuiteSparse_SPQR_FOUND)
+ include(CheckCSourceCompiles)
+ include(CMakePushCheckState)
+ cmake_push_check_state()
+ set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${SUITESPARSE_INCLUDE_DIR})
+ set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${SUITESPARSE_LIBRARY})
+ # check whether version is at least 4.3
+ check_c_source_compiles("
+ #include <SuiteSparse_config.h>
+ int main(void)
+ {
+ #ifndef SUITESPARSE_HAS_VERSION_FUNCTION
+ #error SuiteSparse <= 4.2.0 too old, required version 4.3 or newer for SPQR.
+ #endif
+ #if SUITESPARSE_VERSION <= 4003
+ #error SuiteSparse too old, required version 4.3 or newer for SPQR.
+ #endif
+ return 0;
+ }"
+ SUITESPARSE_MIN_VERSION_4_3)
+
+ if(NOT SUITESPARSE_MIN_VERSION_4_3)
+ set(SuiteSparse_SPQR_FOUND FALSE)
+ set(HAVE_SUITESPARSE_SPQR FALSE)
+ endif()
+ cmake_pop_check_state()
+endif()
+
list(APPEND SUITESPARSE_LIBRARY ${SUITESPARSE_CONFIG_LIB})
# make them unique
@@ -210,6 +239,7 @@ mark_as_advanced(
SUITESPARSE_INCLUDE_DIR
SUITESPARSE_LIBRARY
SUITESPARSE_CONFIG_LIB
+ SUITESPARSE_MIN_VERSION_4_3
WILL_USE_CHOLMOD
WILL_USE_UMFPACK)
diff --git a/config.h.cmake b/config.h.cmake
index 553981952..e34d1887c 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -132,7 +132,8 @@
/* Define to ENABLE_SUITESPARSE if the SuiteSparse's RBIO library is available */
#cmakedefine HAVE_SUITESPARSE_RBIO ENABLE_SUITESPARSE
-/* Define to ENABLE_SUITESPARSE if the SuiteSparse's SPQR library is available */
+/* Define to ENABLE_SUITESPARSE if the SuiteSparse's SPQR library is available
+ and if it's version is at least 4.3 */
#cmakedefine HAVE_SUITESPARSE_SPQR ENABLE_SUITESPARSE
/* Define to ENABLE_SUITESPARSE if the SuiteSparse's UMFPACK library is available */
--
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