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From a10bb4b96f40f3b5574b0fade2cfece8bf4c6fc9 Mon Sep 17 00:00:00 2001
From: Christoph Junghans <junghans@lanl.gov>
Date: Thu, 23 Aug 2018 15:02:36 -0600
Subject: [PATCH] cmake: fix link issue with --as-needed

---
 cmake/CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 460d177c92..51997593db 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -276,11 +276,14 @@ endif()
 
 if(PKG_MSCG OR PKG_USER-ATC OR PKG_USER-AWPMD OR PKG_USER-QUIP OR PKG_LATTE)
   find_package(LAPACK)
-  if(NOT LAPACK_FOUND)
+  find_package(BLAS)
+  if(NOT LAPACK_FOUND OR NOT BLAS_FOUND)
     enable_language(Fortran)
     file(GLOB LAPACK_SOURCES ${LAMMPS_LIB_SOURCE_DIR}/linalg/*.[fF])
     add_library(linalg STATIC ${LAPACK_SOURCES})
     set(LAPACK_LIBRARIES linalg)
+  else()
+    list(APPEND LAPACK_LIBRARIES ${BLAS_LIBRARIES})
   endif()
 endif()