--- a/src/sage/libs/lcalc/lcalc_Lfunction.pxd
+++ b/src/sage/libs/lcalc/lcalc_Lfunction.pxd
@@ -1,6 +1,5 @@
 # Lcalc requires GNU extensions, it does not strictly conform to any
 # C++ standard: https://trac.sagemath.org/ticket/23341
-# distutils: extra_compile_args = -std=gnu++98
 
 cdef extern from "lcalc_sage.h":
     ctypedef struct doublevec "std::vector<double>":