diff -up src/sage/misc/cython.py.orig src/sage/misc/cython.py
--- src/sage/misc/cython.py.orig	2021-05-09 16:00:11.000000000 -0600
+++ src/sage/misc/cython.py	2021-05-28 11:28:14.608518654 -0600
@@ -53,7 +53,7 @@ def _standard_libs_libdirs_incdirs_alias
         'ec', 'gsl',
     ] + aliases["CBLAS_LIBRARIES"] + [
         'ntl']
-    standard_libdirs = [os.path.join(SAGE_LOCAL, "lib")] + aliases["CBLAS_LIBDIR"] + aliases["NTL_LIBDIR"]
+    standard_libdirs = [os.path.realpath(os.path.join(SAGE_LOCAL, "lib"))] + aliases["CBLAS_LIBDIR"] + aliases["NTL_LIBDIR"]
     standard_incdirs = sage_include_directories() + aliases["CBLAS_INCDIR"] + aliases["NTL_INCDIR"]
     return standard_libs, standard_libdirs, standard_incdirs, aliases