package/pkg-meson: separate infrastructure logic from package

Move all logic related to handling meson packages to the
package/pkg-meson file. This now mirrors the other build
systems and keeps the package itself clean.

Correctly prefix variables with PKG_MESON_

Signed-off-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/meson/meson.mk

@@ -13,44 +13,6 @@ MESON_SETUP_TYPE = setuptools
 HOST_MESON_DEPENDENCIES = host-ninja
 HOST_MESON_NEEDS_HOST_PYTHON = python3
 
-HOST_MESON_TARGET_ENDIAN = $(call qstrip,$(call LOWERCASE,$(BR2_ENDIAN)))
-HOST_MESON_TARGET_CPU = $(GCC_TARGET_CPU)
-
-# https://mesonbuild.com/Reference-tables.html#cpu-families
-ifeq ($(BR2_arcle)$(BR2_arceb),y)
-HOST_MESON_TARGET_CPU_FAMILY = arc
-else ifeq ($(BR2_arm)$(BR2_armeb),y)
-HOST_MESON_TARGET_CPU_FAMILY = arm
-else ifeq ($(BR2_aarch64)$(BR2_aarch64_be),y)
-HOST_MESON_TARGET_CPU_FAMILY = aarch64
-else ifeq ($(BR2_i386),y)
-HOST_MESON_TARGET_CPU_FAMILY = x86
-else ifeq ($(BR2_m68k),y)
-HOST_MESON_TARGET_CPU_FAMILY = m68k
-else ifeq ($(BR2_microblazeel)$(BR2_microblazebe),y)
-HOST_MESON_TARGET_CPU_FAMILY = microblaze
-else ifeq ($(BR2_mips)$(BR2_mipsel),y)
-HOST_MESON_TARGET_CPU_FAMILY = mips
-else ifeq ($(BR2_mips64)$(BR2_mips64el),y)
-HOST_MESON_TARGET_CPU_FAMILY = mips64
-else ifeq ($(BR2_powerpc),y)
-HOST_MESON_TARGET_CPU_FAMILY = ppc
-else ifeq ($(BR2_powerpc64)$(BR2_powerpc64le),y)
-HOST_MESON_TARGET_CPU_FAMILY = ppc64
-else ifeq ($(BR2_riscv),y)
-HOST_MESON_TARGET_CPU_FAMILY = riscv64
-else ifeq ($(BR2_sh4)$(BR2_sh4eb)$(BR2_sh4a)$(BR2_sh4aeb),y)
-HOST_MESON_TARGET_CPU_FAMILY = sh4
-else ifeq ($(BR2_sparc),y)
-HOST_MESON_TARGET_CPU_FAMILY = sparc
-else ifeq ($(BR2_sparc64),y)
-HOST_MESON_TARGET_CPU_FAMILY = sparc64
-else ifeq ($(BR2_x86_64),y)
-HOST_MESON_TARGET_CPU_FAMILY = x86_64
-else
-HOST_MESON_TARGET_CPU_FAMILY = $(ARCH)
-endif
-
 # Avoid interpreter shebang longer than 128 chars
 define HOST_MESON_SET_INTERPRETER
 	$(SED) '1s:.*:#!/usr/bin/env python3:' $(HOST_DIR)/bin/meson

package/pkg-meson.mk

@@ -29,6 +29,44 @@ MESON		= PYTHONNOUSERSITE=y $(HOST_DIR)/bin/meson
 NINJA		= PYTHONNOUSERSITE=y $(HOST_DIR)/bin/ninja
 NINJA_OPTS	= $(if $(VERBOSE),-v) -j$(PARALLEL_JOBS)
 
+# https://mesonbuild.com/Reference-tables.html#cpu-families
+ifeq ($(BR2_arcle)$(BR2_arceb),y)
+PKG_MESON_TARGET_CPU_FAMILY = arc
+else ifeq ($(BR2_arm)$(BR2_armeb),y)
+PKG_MESON_TARGET_CPU_FAMILY = arm
+else ifeq ($(BR2_aarch64)$(BR2_aarch64_be),y)
+PKG_MESON_TARGET_CPU_FAMILY = aarch64
+else ifeq ($(BR2_i386),y)
+PKG_MESON_TARGET_CPU_FAMILY = x86
+else ifeq ($(BR2_m68k),y)
+PKG_MESON_TARGET_CPU_FAMILY = m68k
+else ifeq ($(BR2_microblazeel)$(BR2_microblazebe),y)
+PKG_MESON_TARGET_CPU_FAMILY = microblaze
+else ifeq ($(BR2_mips)$(BR2_mipsel),y)
+PKG_MESON_TARGET_CPU_FAMILY = mips
+else ifeq ($(BR2_mips64)$(BR2_mips64el),y)
+PKG_MESON_TARGET_CPU_FAMILY = mips64
+else ifeq ($(BR2_powerpc),y)
+PKG_MESON_TARGET_CPU_FAMILY = ppc
+else ifeq ($(BR2_powerpc64)$(BR2_powerpc64le),y)
+PKG_MESON_TARGET_CPU_FAMILY = ppc64
+else ifeq ($(BR2_riscv),y)
+PKG_MESON_TARGET_CPU_FAMILY = riscv64
+else ifeq ($(BR2_sh4)$(BR2_sh4eb)$(BR2_sh4a)$(BR2_sh4aeb),y)
+PKG_MESON_TARGET_CPU_FAMILY = sh4
+else ifeq ($(BR2_sparc),y)
+PKG_MESON_TARGET_CPU_FAMILY = sparc
+else ifeq ($(BR2_sparc64),y)
+PKG_MESON_TARGET_CPU_FAMILY = sparc64
+else ifeq ($(BR2_x86_64),y)
+PKG_MESON_TARGET_CPU_FAMILY = x86_64
+else
+PKG_MESON_TARGET_CPU_FAMILY = $(ARCH)
+endif
+
+HOST_MESON_TARGET_ENDIAN = $(call qstrip,$(call LOWERCASE,$(BR2_ENDIAN)))
+HOST_MESON_TARGET_CPU = $(GCC_TARGET_CPU)
+
 ################################################################################
 # inner-meson-package -- defines how the configuration, compilation and
 # installation of a Meson package should be done, implements a few hooks to
@@ -181,7 +219,7 @@ meson-package = $(call inner-meson-package,$(pkgname),$(call UPPERCASE,$(pkgname
 host-meson-package = $(call inner-meson-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
 
 ################################################################################
-# Generation of the Meson cross-compilation.conf file
+# Generation of the Meson compile flags and cross-compilation file
 ################################################################################
 
 # Generate a Meson cross-compilation.conf suitable for use with the