From bbe203e89c8c694491a37554652a4309cf82e1b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <gruenich@dune-project.org>
Date: Tue, 3 Feb 2015 22:07:41 +0100
Subject: [PATCH] [CMake] Don't add -lm to METIS_LIBRARY if this is not found.
---
cmake/modules/FindMETIS.cmake | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cmake/modules/FindMETIS.cmake b/cmake/modules/FindMETIS.cmake
index fd8029674..fbbe35cb5 100644
--- a/cmake/modules/FindMETIS.cmake
+++ b/cmake/modules/FindMETIS.cmake
@@ -48,7 +48,7 @@ find_library(METIS_LIBRARY ${METIS_LIB_NAME}
)
# we need to check whether we need to link m, copy the lazy solution from FindBLAS and FindLAPACK here.
-if(NOT WIN32)
+if(METIS_LIBRARY AND NOT WIN32)
list(APPEND METIS_LIBRARY "-lm")
endif()
--
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