Provide feature nativecomp and make use of it

	* lisp/emacs-lisp/comp.el (comp-ensure-native-compiler): Use
	`featurep' to identify if the native compiler is available.
	* lisp/emacs-lisp/nadvice.el (advice--add-function): Likewise.
	* lisp/emacs-lisp/package.el (package--delete-directory): Likewise.
	* lisp/loadup.el: Likewise.
	* src/comp.c (syms_of_comp): Provide feature nativecomp.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/comp.c b/src/comp.c
index 13343de3d88..0b5a49fd1f1 100644
--- a/src/comp.c
+++ b/src/comp.c
@@ -5300,6 +5300,7 @@ The last directory of this list is assumed to be the system one.  */);
                doc: /* Hash table subr-name -> bool.  */);
   Vcomp_installed_trampolines_h = CALLN (Fmake_hash_table);
 
+  Fprovide (intern_c_string ("nativecomp"), Qnil);
 #endif /* #ifdef HAVE_NATIVE_COMP */
 
   defsubr (&Snative_comp_available_p);