x86, kbuild: make "make install" not depend on vmlinux

It is common to use "make install" in restricted environments which
differ from the one which was actually used to build the kernel.  In
such environments it is highly undesirable to trigger a rebuild of any
part of the system.  Worse, the rebuild may be spurious, triggered by
differences in the environment.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <20090415234642.GA28531@uranus.ravnborg.org>

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index f05d8c91d9e51ed29b21a6b99588398182879bb2..8c86b72afdc2d39bc8957692e35335ebabae82bc 100644 (file)
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -153,7 +153,7 @@ endif
 
 boot := arch/x86/boot
 
-BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage install
+BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
 
 PHONY += bzImage $(BOOT_TARGETS)
 
@@ -171,6 +171,10 @@ bzImage: vmlinux
 $(BOOT_TARGETS): vmlinux
        $(Q)$(MAKE) $(build)=$(boot) $@
 
+PHONY += install
+install:
+       $(Q)$(MAKE) $(build)=$(boot) $@
+
 PHONY += vdso_install
 vdso_install:
        $(Q)$(MAKE) $(build)=arch/x86/vdso $@