typo

Author: theAeon

tools/CMakeLists.txt

@@ -231,7 +231,7 @@ endif()
 #endif()
 list(JOIN BLAS_LIBRARIES " " BLAS_LIBRARY_STRING)
 string(TOUPPER ${BLAS_LIBRARY_STRING} BLAS_LIBRARY_STRING)
-if($BLAS_LIBRARIES MATCHES "")
+if(BLAS_LIBRARIES MATCHES "")
 target_compile_definitions(RcppPlanc PRIVATE BLAS_IMPLICIT)
 endif()
 if(BLAS_LIBRARY_STRING MATCHES ^.*OPENBLAS.*)