* Makeconfig ($(common-objpfx)config.status):

	Fix typo: $(add_ons) -> $(add-ons).
	(Makeconfig-add-on): New variable.  When doing $(sysdep-makeconfigs)
	include, use black magic to get it set to an add-on's name during the
	include of the add-on's Makeconfig.

	* configure.in: Use variable name `libc_add_on' when sourcing add-on
	configure fragments, so they can refer to this.
	* configure: Regenerated.

1 files changed, 15 insertions, 2 deletions

diff --git a/Makeconfig b/Makeconfig
index 0b85021..8490d07 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -120,7 +120,7 @@ $(common-objpfx)config.status: $(..)version.h $(..)configure \
 						    $(firstword $(wildcard \
  $(addprefix $(dir)/,configure configure.in))))) \
 			       $(patsubst %.in,%,\
-					  $(foreach dir,$(add_ons),\
+					  $(foreach dir,$(add-ons),\
 						    $(firstword $(wildcard \
  $(addprefix $(..)$(dir)/,configure configure.in)))))
 	@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
@@ -980,12 +980,25 @@ sysdep-makeconfigs := $(wildcard $(patsubst %,$(..)%/Makeconfig,\
 					    $(config-sysdirs) $(add-ons)))
 
 ifneq (,$(sysdep-makeconfigs))
-include $(sysdep-makeconfigs)
+Makeconfig-doing-sysdep := $(sysdep-makeconfigs)
+# Before each one, include ourselves again to do the bit below that
+# will set `Makeconfig-add-on' in an add-on's Makeconfig fragment.
+include $(foreach M,$(sysdep-makeconfigs),$(..)Makeconfig $M)
 endif
 
 
 endif # Makeconfig not yet included
 
+# The whole body above didn't run when we are included as a subroutine
+# of ourselves in the sysdep-makeconfigs include line.  This bit runs.
+ifneq (,$(Makeconfig-doing-sysdep))
+sysdep-Makeconfig := $(firstword $(Makeconfig-doing-sysdep))
+Makeconfig-doing-sysdep := $(filter-out $(sysdep-Makeconfig),\
+					$(Makeconfig-doing-sysdep))
+Makeconfig-add-on := $(filter $(add-ons),$(patsubst $(..)%/Makeconfig,%,\
+						    $(sysdep-Makeconfig)))
+endif
+
 # Local Variables:
 # mode: makefile
 # End: