Index: slepc/makefile
===================================================================
--- slepc.orig/makefile	2021-02-12 12:20:19.453268939 +0100
+++ slepc/makefile	2021-02-12 12:20:19.449268966 +0100
@@ -143,7 +143,7 @@
 allclean:
 	-@${OMAKE} -f gmakefile clean
 
-clean:: allclean
+clean: allclean
 
 reconfigure:
 	@unset MAKEFLAGS && ${PYTHON} ${PETSC_ARCH}/lib/slepc/conf/reconfigure-${PETSC_ARCH}.py
