Fixing with RT library

configure.ac

@@ -268,12 +268,6 @@ AX_SUITESPARSE([],[echo "suitesparse not found"
 AX_EIGEN([],[echo "eigen not found"
                     exit 206])
 
-##### Checking for rt
-
-AC_CHECK_LIB(rt, clock_gettime, [AC_DEFINE([HAVE_CLOCK_GETTIME],[],[Have clock time])
-                                 OPT_LIBS="$OPT_LIBS -lrt"
-                                ])
-
 ###### Checking for compiler flags -fext-numeric-literals
 
 my_save_cflags="$CFLAGS"