11: LIBFOO_CONF_OPT = --enable-shared
12: LIBFOO_DEPENDENCIES = libglib2 host-pkg-config
13:
-14: $(eval $(call AUTOTARGETS))
+14: $(eval $(AUTOTARGETS))
------------------------
On line 6, we declare the version of the package.
~~~~~~~~~~~~~~~~~~~~~~~
The main macro of the autotools package infrastructure is
-+AUTOTARGETS+. It has the same number of arguments and the
-same semantic as the +GENTARGETS+ macro, which is the main
-macro of the generic package infrastructure. For autotools packages, the
-ability to have target and host packages is also available (and is
-actually widely used).
++AUTOTARGETS+. It is similar to the +GENTARGETS+ macro. The ability to
+have target and host packages is also available, with the
++host-autotools-package+ macro.
Just like the generic infrastructure, the autotools infrastructure
works by defining a number of variables before calling the
11: LIBFOO_CONF_OPT = -DBUILD_DEMOS=ON
12: LIBFOO_DEPENDENCIES = libglib2 host-pkg-config
13:
-14: $(eval $(call CMAKETARGETS))
+14: $(eval $(CMAKETARGETS))
------------------------
On line 6, we declare the version of the package.
~~~~~~~~~~~~~~~~~~~~~~~~
The main macro of the CMake package infrastructure is
-+CMAKETARGETS+. It has the same number of arguments and the same
-semantic as the +GENTARGETS+ macro, which is the main macro of the
-generic package infrastructure. For CMake packages, the ability to
-have target and host packages is also available.
++CMAKETARGETS+. It is similar to the +GENTARGETS+ macro. The ability to
+have target and host packages is also available, with the
++host-cmake-package+ macro.
Just like the generic infrastructure, the CMake infrastructure works
by defining a number of variables before calling the +CMAKETARGETS+
32: /bin/foo f 4755 0 0 - - - - -
33: endef
34:
-35: $(eval $(call GENTARGETS))
+35: $(eval $(GENTARGETS))
--------------------------------
The Makefile begins on line 6 to 8 with metadata information: the
+GENTARGETS+ Reference
~~~~~~~~~~~~~~~~~~~~~~
-The +GENTARGETS+ macro takes one optional argument. This argument can
-be used to tell if the package is a target package (cross-compiled for
-the target) or a host package (natively compiled for the host). If
-unspecified, it is assumed that it is a target package. See below for
-details.
-
-For a given package, in a single +.mk+ file, it is possible to call
-GENTARGETS twice, once to create the rules to generate a target
+There are two variants of the generic target. The +GENTARGETS+ macro is
+used for packages to be cross-compiled for the target. The
++host-generic-package+ macro is used for host packages, natively compiled
+for the host. It is possible to call both of them in a single +.mk+
+file: once to create the rules to generate a target
package and once to create the rules to generate a host package:
----------------------
-$(eval $(call GENTARGETS))
-$(eval $(call GENTARGETS,host))
+$(eval $(GENTARGETS))
+$(eval $(host-generic-package))
----------------------
This might be useful if the compilation of the target package requires
variables of other packages, if they depend on +libfoo+ or
+host-libfoo+.
-The call to the +GENTARGETS+ macro *must* be at the end of the +.mk+
-file, after all variable definitions.
+The call to the +GENTARGETS+ and/or +host-generic-package+ macro *must* be
+at the end of the +.mk+ file, after all variable definitions.
For the target package, the +GENTARGETS+ uses the variables defined by
the .mk file and prefixed by the uppercased package name:
-+LIBFOO_*+. For the host package, it uses the +HOST_LIBFOO_*+. For
++LIBFOO_*+. +host-generic-package+ uses the +HOST_LIBFOO_*+ variables. For
'some' variables, if the +HOST_LIBFOO_+ prefixed variable doesn't
exist, the package infrastructure uses the corresponding variable
prefixed by +LIBFOO_+. This is done for variables that are likely to
# Argument 1 is "target" or "host" [optional, default: "target"]
################################################################################
-define AUTOTARGETS
-ifeq ($(1),host)
-$(call AUTOTARGETS_INNER,$(1)-$(call pkgname),$(call UPPERCASE,$(1)-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
-else
-$(call AUTOTARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
-endif
-endef
+AUTOTARGETS = $(call AUTOTARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
+host-autotools-package = $(call AUTOTARGETS_INNER,host-$(call pkgname),$(call UPPERCASE,host-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
# Argument 1 is "target" or "host" [optional, default: "target"]
################################################################################
-define CMAKETARGETS
-ifeq ($(1),host)
-$(call CMAKETARGETS_INNER,$(1)-$(call pkgname),$(call UPPERCASE,$(1)-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
-else
-$(call CMAKETARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
-endif
-endef
+CMAKETARGETS = $(call CMAKETARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
+host-cmake-package = $(call CMAKETARGETS_INNER,host-$(call pkgname),$(call UPPERCASE,host-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
################################################################################
# Generation of the CMake toolchain file
# Argument 1 is "target" or "host" [optional, default: "target"]
################################################################################
-define GENTARGETS
-ifeq ($(1),host)
-# In the case of host packages, turn the package name "pkg" into "host-pkg"
-$(call GENTARGETS_INNER,$(1)-$(call pkgname),$(call UPPERCASE,$(1)-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
-else
# In the case of target packages, keep the package name "pkg"
-$(call GENTARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
-endif
-endef
+GENTARGETS = $(call GENTARGETS_INNER,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
+# In the case of host packages, turn the package name "pkg" into "host-pkg"
+host-generic-package = $(call GENTARGETS_INNER,host-$(call pkgname),$(call UPPERCASE,host-$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),host)
# :mode=makefile:
is_manual_target=0
is_manual_host=0
- if grep -E "\(call AUTOTARGETS,host\)" $i > /dev/null ; then
+ if grep -E "\(host-autotools-package\)" $i > /dev/null ; then
is_auto_host=1
fi
- if grep -E "\(call AUTOTARGETS\)" $i > /dev/null ; then
+ if grep -E "\(AUTOTARGETS\)" $i > /dev/null ; then
is_auto_target=1
fi
- if grep -E "\(call GENTARGETS,host\)" $i > /dev/null ; then
+ if grep -E "\(host-generic-package\)" $i > /dev/null ; then
is_pkg_host=1
fi
- if grep -E "\(call GENTARGETS\)" $i > /dev/null ; then
+ if grep -E "\(GENTARGETS\)" $i > /dev/null ; then
is_pkg_target=1
fi
- if grep -E "\(call CMAKETARGETS,host\)" $i > /dev/null ; then
+ if grep -E "\(host-cmake-package\)" $i > /dev/null ; then
is_cmake_host=1
fi
- if grep -E "\(call CMAKETARGETS\)" $i > /dev/null ; then
+ if grep -E "\(CMAKETARGETS\)" $i > /dev/null ; then
is_cmake_target=1
fi