Link BLAS explicitly on non-Mac platforms
Fixes issue #3.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a8a5c63..70336ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -145,6 +145,18 @@
ENDIF (NOT EXISTS ${LAPACK_LIB})
MESSAGE ("-- Found LAPACK library: ${LAPACK_LIB}")
+ # On Apple BLAS is linked with vecLib, so don't add it separately.
+ IF (NOT APPLE)
+ MESSAGE("-- Check for BLAS")
+ FIND_LIBRARY(BLAS_LIB NAMES blas)
+ IF (NOT EXISTS ${BLAS_LIB})
+ MESSAGE(FATAL_ERROR
+ "Can't find BLAS (needed for LAPACK and SuiteSparse.)"
+ "Please specify -DBLAS_LIB=...")
+ ENDIF (NOT EXISTS ${BLAS_LIB})
+ MESSAGE ("-- Found BLAS library: ${BLAS_LIB}")
+ ENDIF (NOT APPLE)
+
ELSE (SUITESPARSE)
ADD_DEFINITIONS(-DCERES_NO_SUITESPARSE)
ENDIF (SUITESPARSE)