[git commit master 1/1] another fix to gen_build_files / autoconf.h dependency

[Denys Vlasenko]

commit: http://git.busybox.net/busybox/commit/?id=8d444494ef82809f83f75b142c66e0aff0aa9668
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 Makefile |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 5905121..9a82776 100644
--- a/Makefile
+++ b/Makefile
@@ -360,7 +360,7 @@ scripts/basic/%: scripts_basic ;
 
 # This target generates Kbuild's and Config.in's from *.c files
 PHONY += gen_build_files
-gen_build_files:
+gen_build_files: $(wildcard $(srctree)/*/*.c) $(wildcard $(srctree)/*/*/*.c)
 	$(Q)$(srctree)/scripts/gen_build_files.sh $(srctree) $(objtree)
 
 # bbox: we have helpers in applets/
@@ -509,7 +509,7 @@ include $(srctree)/Makefile.flags
 # with it and forgot to run make oldconfig.
 # If kconfig.d is missing then we are probarly in a cleaned tree so
 # we execute the config step to be sure to catch updated Kconfig files
-include/autoconf.h: .kconfig.d .config | gen_build_files
+include/autoconf.h: .kconfig.d .config $(wildcard $(srctree)/*/*.c) $(wildcard $(srctree)/*/*/*.c) | gen_build_files
 	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 
 else
-- 
1.7.1