If you try to build a kernel with KCONFIG_CONFIG set (to a value not equal to .config) and that config sets CONFIG_IKCONFIG then the build will fail with: make[1]: *** No rule to make target `.config', needed by \ `kernel/config_data.gz'. Stop. because the kernel/Makefile contains a direct reference to .config. This issue has been present since the introduction of KCONFIG_CONFIG in 14cdd3c402bf7c66f0bcd76e290f0770a54a4b21. Signed-off-by: Ben Gardiner <bengardiner@xxxxxxxxxxxxxx> CC: Roman Zippel <zippel@xxxxxxxxxxxxxx> CC: Michal Marek <mmarek@xxxxxxx> Reviewed-by: Michal Marek <mmarek@xxxxxxx> --- changes since v1: * rebased to 6313e3c21743cc88bb5bd8aa72948ee1e83937b6 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git * export KCONFIG_CONFIG from top-level Makefile (Michal Marek) --- Makefile | 1 + kernel/Makefile | 2 +- 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/Makefile b/Makefile index 3d94974..e0973cc 100644 --- a/Makefile +++ b/Makefile @@ -224,6 +224,7 @@ ifeq ($(ARCH),m68knommu) endif KCONFIG_CONFIG ?= .config +export KCONFIG_CONFIG # SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ diff --git a/kernel/Makefile b/kernel/Makefile index 0b5ff08..33e0a39 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -121,7 +121,7 @@ $(obj)/configs.o: $(obj)/config_data.h # config_data.h contains the same information as ikconfig.h but gzipped. # Info from config_data can be extracted from /proc/config* targets += config_data.gz -$(obj)/config_data.gz: .config FORCE +$(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE $(call if_changed,gzip) quiet_cmd_ikconfiggz = IKCFG $@ -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
