diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -629,12 +629,15 @@ ifeq ($(may-sync-config),1) -include include/config/auto.conf.cmd # To avoid any implicit rule to kick in, define an empty command -$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; +$(KCONFIG_CONFIG): ; # The actual configuration files used during the build are stored in # include/generated/ and include/config/. Update them if .config is newer than # include/config/auto.conf (which mirrors .config). -include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd +# +# This exploits the 'multi-target pattern rule' trick. +# The syncconfig should be executed only once to make all the targets. +%/auto.conf %/auto.conf.cmd %/tristate.conf: $(KCONFIG_CONFIG) $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig else # External modules and some install targets need include/generated/autoconf.h |