Linux 2.6.16-rc6

[linux-2.6.git] / Makefile

diff --git a/Makefile b/Makefile
index 673148e07603778eae148651d432cb6351cac96f..ac54c03c1b1a9ccaa002108d6748a18d23bea9f3 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
-SUBLEVEL = 15
-EXTRAVERSION =
+SUBLEVEL = 16
+EXTRAVERSION =-rc6
 NAME=Sliding Snow Leopard
 
 # *DOCUMENTATION*
@@ -262,6 +262,13 @@ export quiet Q KBUILD_VERBOSE
 # cc support functions to be used (only) in arch/$(ARCH)/Makefile
 # See documentation in Documentation/kbuild/makefiles.txt
 
+# as-option
+# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,)
+
+as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \
+            -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \
+            else echo "$(2)"; fi ;)
+
 # cc-option
 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
 
@@ -337,8 +344,9 @@ AFLAGS              := -D__ASSEMBLY__
 
 # Read KERNELRELEASE from .kernelrelease (if it exists)
 KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null)
+KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
-export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
+export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \
        ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
        CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
        HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
@@ -433,6 +441,7 @@ export KBUILD_DEFCONFIG
 config %config: scripts_basic outputmakefile FORCE
        $(Q)mkdir -p include/linux
        $(Q)$(MAKE) $(build)=scripts/kconfig $@
+       $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
 
 else
 # ===========================================================================
@@ -542,7 +551,7 @@ export      INSTALL_PATH ?= /boot
 # makefile but the arguement can be passed to make if needed.
 #
 
-MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
+MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
 export MODLIB
 
 
@@ -783,12 +792,10 @@ endif
 localver-full = $(localver)$(localver-auto)
 
 # Store (new) KERNELRELASE string in .kernelrelease
-kernelrelease = \
-       $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(localver-full)
+kernelrelease = $(KERNELVERSION)$(localver-full)
 .kernelrelease: FORCE
-       $(Q)rm -f .kernelrelease
-       $(Q)echo $(kernelrelease) > .kernelrelease
-       $(Q)echo "  Building kernel $(kernelrelease)"
+       $(Q)rm -f $@
+       $(Q)echo $(kernelrelease) > $@
 
 
 # Things we need to do before we recursively start building the kernel
@@ -898,7 +905,7 @@ define filechk_version.h
        )
 endef
 
-include/linux/version.h: $(srctree)/Makefile FORCE
+include/linux/version.h: $(srctree)/Makefile .config .kernelrelease FORCE
        $(call filechk,version.h)
 
 # ---------------------------------------------------------------------------
@@ -1301,9 +1308,10 @@ checkstack:
        $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
 
 kernelrelease:
-       @echo $(KERNELRELEASE)
+       $(if $(wildcard .kernelrelease), $(Q)echo $(KERNELRELEASE), \
+       $(error kernelrelease not valid - run 'make *config' to update it))
 kernelversion:
-       @echo $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+       @echo $(KERNELVERSION)
 
 # FIXME Should go into a make.lib or something 
 # ===========================================================================