diff --git a/security/selinux/Makefile b/security/selinux/Makefile index ab8c3093d5fd..836379639058 100644 --- a/security/selinux/Makefile +++ b/security/selinux/Makefile @@ -3,6 +3,11 @@ # Makefile for building the SELinux module as part of the kernel tree. # +# NOTE: There are a number of improvements that can be made to this Makefile +# once the kernel requires make v4.3 or greater; the most important feature +# lacking in older versions of make is support for grouped targets. These +# improvements are noted inline in the Makefile below ... + obj-$(CONFIG_SECURITY_SELINUX) := selinux.o ccflags-y := -I$(srctree)/security/selinux -I$(srctree)/security/selinux/include @@ -19,11 +24,17 @@ selinux-$(CONFIG_IMA) += ima.o genhdrs := flask.h av_permissions.h -$(addprefix $(obj)/,$(selinux-y)): $(addprefix $(obj)/,$(genhdrs)) +# see the note above, replace the dependency rule with the one below: +# $(addprefix $(obj)/,$(selinux-y)): $(addprefix $(obj)/,$(genhdrs)) +$(addprefix $(obj)/,$(selinux-y)): $(obj)/flask.h quiet_cmd_genhdrs = GEN $(addprefix $(obj)/,$(genhdrs)) cmd_genhdrs = $< $(addprefix $(obj)/,$(genhdrs)) -targets += $(genhdrs) -$(addprefix $(obj)/,$(genhdrs)) &: scripts/selinux/genheaders/genheaders FORCE +# see the note above, replace the $targets and 'flask.h' rule with the lines +# below: +# targets += $(genhdrs) +# $(addprefix $(obj)/,$(genhdrs)) &: scripts/selinux/... +targets += flask.h +$(obj)/flask.h: scripts/selinux/genheaders/genheaders FORCE $(call if_changed,genhdrs)