package: add toolchain dependency to every target package

This commit makes the dependency from the target toolchain explicit.
This way we can buid from command line a package that use
inner-generic-package right after the configuration phase, example:

	make clean <package-name>

Also remove TARGETS_ALL because the only purpose was to add toolchain
dependency so it's superseded by this commit.

To prevent circular dependency add the new variable
<pkgname>_ADD_TOOLCHAIN_DEPENDENCY to avoid adding the toolchain
dependency for toolchain packages.

This is also a step forward supporting top-level parallel make.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

7 files changed, 25 insertions, 5 deletions

diff --git a/package/glibc/glibc.mk b/package/glibc/glibc.mk
index 89eaaf6de..f50b4591b 100644
--- a/package/glibc/glibc.mk
+++ b/package/glibc/glibc.mk
@@ -31,6 +31,9 @@ endif
 GLIBC_LICENSE = GPLv2+ (programs), LGPLv2.1+, BSD-3c, MIT (library)
 GLIBC_LICENSE_FILES = $(addprefix $(GLIBC_SRC_SUBDIR)/,COPYING COPYING.LIB LICENSES)
 
+# glibc is part of the toolchain so disable the toolchain dependency
+GLIBC_ADD_TOOLCHAIN_DEPENDENCY = NO
+
 # Before (e)glibc is configured, we must have the first stage
 # cross-compiler and the kernel headers
 GLIBC_DEPENDENCIES = host-gcc-initial linux-headers host-gawk
diff --git a/package/linux-headers/linux-headers.mk b/package/linux-headers/linux-headers.mk
index 30d307659..6dac9e36f 100644
--- a/package/linux-headers/linux-headers.mk
+++ b/package/linux-headers/linux-headers.mk
@@ -17,6 +17,9 @@ LINUX_HEADERS_SOURCE = linux-$(LINUX_HEADERS_VERSION).tar.xz
 
 LINUX_HEADERS_INSTALL_STAGING = YES
 
+# linux-headers is part of the toolchain so disable the toolchain dependency
+LINUX_HEADERS_ADD_TOOLCHAIN_DEPENDENCY = NO
+
 define LINUX_HEADERS_INSTALL_STAGING_CMDS
 	(cd $(@D); \
 		$(TARGET_MAKE_ENV) $(MAKE) \
diff --git a/package/pkg-autotools.mk b/package/pkg-autotools.mk
index 5f6c31d15..32ceef208 100644
--- a/package/pkg-autotools.mk
+++ b/package/pkg-autotools.mk
@@ -210,7 +210,8 @@ endef
 # This must be repeated from inner-generic-package, otherwise we get an empty
 # _DEPENDENCIES if _AUTORECONF is YES.  Also filter the result of _AUTORECONF
 # away from the non-host rule
-$(2)_DEPENDENCIES ?= $(filter-out host-automake host-autoconf host-libtool $(1),\
+$(2)_DEPENDENCIES ?= $(filter-out host-automake host-autoconf host-libtool \
+				host-toolchain $(1),\
     $(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
 
 
diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
index dbe0d97c9..f7e454bdd 100644
--- a/package/pkg-cmake.mk
+++ b/package/pkg-cmake.mk
@@ -89,7 +89,7 @@ endif
 
 # This must be repeated from inner-generic-package, otherwise we only get
 # host-cmake in _DEPENDENCIES because of the following line
-$(2)_DEPENDENCIES ?= $(filter-out $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
+$(2)_DEPENDENCIES ?= $(filter-out host-toolchain $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
 
 $(2)_DEPENDENCIES += host-cmake
 
diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index e5b04ff64..b135b140e 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -351,8 +351,18 @@ endif
 
 $(2)_REDISTRIBUTE		?= YES
 
-
-$(2)_DEPENDENCIES ?= $(filter-out $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
+# When a target package is a toolchain dependency set this variable to
+# 'NO' so the 'toolchain' dependency is not added to prevent a circular
+# dependency
+$(2)_ADD_TOOLCHAIN_DEPENDENCY	?= YES
+
+$(2)_DEPENDENCIES ?= $(filter-out  host-toolchain $(1),\
+	$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
+ifeq ($(4),target)
+ifeq ($$($(2)_ADD_TOOLCHAIN_DEPENDENCY),YES)
+$(2)_DEPENDENCIES += toolchain
+endif
+endif
 
 $(2)_INSTALL_STAGING		?= NO
 $(2)_INSTALL_IMAGES		?= NO
diff --git a/package/pkg-python.mk b/package/pkg-python.mk
index 9b3c97af3..f33980aae 100644
--- a/package/pkg-python.mk
+++ b/package/pkg-python.mk
@@ -142,7 +142,7 @@ endif
 # be derived automatically from the dependencies of the corresponding
 # target package. For example, target packages need
 # host-python-distutilscross, but not host packages.
-$(2)_DEPENDENCIES ?= $(filter-out host-python host-python-setuptools host-python-distutilscross $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
+$(2)_DEPENDENCIES ?= $(filter-out host-python host-python-setuptools host-python-distutilscross host-toolchain $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
 
 # Target packages need both the python interpreter on the target (for
 # runtime) and the python interpreter on the host (for
diff --git a/package/uclibc/uclibc.mk b/package/uclibc/uclibc.mk
index 7df9721c3..ea1c6946a 100644
--- a/package/uclibc/uclibc.mk
+++ b/package/uclibc/uclibc.mk
@@ -22,6 +22,9 @@ endif
 
 UCLIBC_INSTALL_STAGING = YES
 
+# uclibc is part of the toolchain so disable the toolchain dependency
+UCLIBC_ADD_TOOLCHAIN_DEPENDENCY = NO
+
 # Before uClibc is configured, we must have the first stage
 # cross-compiler and the kernel headers
 UCLIBC_DEPENDENCIES = host-gcc-initial linux-headers