always link to gfortran for gotoblas, it seems to be harmless for 1.x but needed for 2.x

bench/btl/cmake/FindGOTO.cmake

diff --git a/bench/btl/cmake/FindGOTO.cmake b/bench/btl/cmake/FindGOTO.cmake
index ad7eb32..eb8b75b 100644
--- a/bench/btl/cmake/FindGOTO.cmake
+++ b/bench/btl/cmake/FindGOTO.cmake
@@ -16,8 +16,8 @@
 find_library(GOTO_LIBRARIES gotoblas PATHS $ENV{GOTODIR} ${LIB_INSTALL_DIR})
 
 if(GOTO_LIBRARIES AND CMAKE_COMPILER_IS_GNUCXX)
-  set(GOTO_LIBRARIES ${GOTO_LIBRARIES} "-lpthread")
-endif(GOTO_LIBRARIES AND CMAKE_COMPILER_IS_GNUCXX)
+  set(GOTO_LIBRARIES ${GOTO_LIBRARIES} "-lpthread -lgfortran")
+endif()
 
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(GOTO DEFAULT_MSG