package/pkg-meson: improve generation of cross-compilation file

Removed a few variables, as they were only used to communicate
between the meson package and pkg-meson.mk and are not needed
anymore.

Moved cross-compilation.conf.in out of meson package.

Creating the cross-compilation.conf files for packages is now
using the original template.
To avoid duplicate code, the common sed pattern is stored in
a make variable.

Use explicit Buildroot variables for compiler tools,
and some fixes. (TARGET_LDFLAGS and TARGET_CXXFLAGS
were mixed up with PKG_TARGET_CFLAGS)

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

package/pkg-meson.mk

@@ -64,8 +64,26 @@ else
 PKG_MESON_TARGET_CPU_FAMILY = $(ARCH)
 endif
 
-HOST_MESON_TARGET_ENDIAN = $(call qstrip,$(call LOWERCASE,$(BR2_ENDIAN)))
-HOST_MESON_TARGET_CPU = $(GCC_TARGET_CPU)
+# Generates sed patterns for patching the cross-compilation.conf template,
+# since Flags might contain commas the arguments are passed indirectly by
+# variable name (stripped to deal with whitespaces).
+# Arguments are variable containing cflags, cxxflags, ldflags.
+define PKG_MESON_CROSSCONFIG_SED
+        -e "s%@TARGET_CC@%$(TARGET_CC)%g" \
+        -e "s%@TARGET_CXX@%$(TARGET_CXX)%g" \
+        -e "s%@TARGET_AR@%$(TARGET_AR)%g" \
+        -e "s%@TARGET_STRIP@%$(TARGET_STRIP)%g" \
+        -e "s%@TARGET_ARCH@%$(PKG_MESON_TARGET_CPU_FAMILY)%g" \
+        -e "s%@TARGET_CPU@%$(GCC_TARGET_CPU)%g" \
+        -e "s%@TARGET_ENDIAN@%$(call qstrip,$(call LOWERCASE,$(BR2_ENDIAN)))%g" \
+        -e "s%@TARGET_CFLAGS@%$(call make-sq-comma-list,$($(strip $(1))))%g" \
+        -e "s%@TARGET_LDFLAGS@%$(call make-sq-comma-list,$($(strip $(3))))%g" \
+        -e "s%@TARGET_CXXFLAGS@%$(call make-sq-comma-list,$($(strip $(2))))%g" \
+        -e "s%@PKGCONF_HOST_BINARY@%$(HOST_DIR)/bin/pkgconf%g" \
+        -e "s%@STAGING_DIR@%$(STAGING_DIR)%g" \
+        -e "s%@STATIC@%$(if $(BR2_STATIC_LIBS),true,false)%g" \
+        $(TOPDIR)/support/misc/cross-compilation.conf.in
+endef
 
 ################################################################################
 # inner-meson-package -- defines how the configuration, compilation and
@@ -101,19 +119,9 @@ $(2)_CXXFLAGS ?= $$(TARGET_CXXFLAGS)
 define $(2)_CONFIGURE_CMDS
 	rm -rf $$($$(PKG)_SRCDIR)/build
 	mkdir -p $$($$(PKG)_SRCDIR)/build
-	sed -e 's%@TARGET_CROSS@%$$(TARGET_CROSS)%g' \
-	    -e 's%@TARGET_ARCH@%$$(HOST_MESON_TARGET_CPU_FAMILY)%g' \
-	    -e 's%@TARGET_CPU@%$$(HOST_MESON_TARGET_CPU)%g' \
-	    -e 's%@TARGET_ENDIAN@%$$(HOST_MESON_TARGET_ENDIAN)%g' \
-	    -e "s%@TARGET_CFLAGS@%$$(call make-sq-comma-list,$$($(2)_CFLAGS))%g" \
-	    -e "s%@TARGET_LDFLAGS@%$$(call make-sq-comma-list,$$($(2)_LDFLAGS))%g" \
-	    -e "s%@TARGET_CXXFLAGS@%$$(call make-sq-comma-list,$$($(2)_CXXFLAGS))%g" \
-	    -e 's%@HOST_DIR@%$$(HOST_DIR)%g' \
-	    -e 's%@STAGING_DIR@%$$(STAGING_DIR)%g' \
-	    -e 's%@STATIC@%$$(if $$(BR2_STATIC_LIBS),true,false)%g' \
-	    -e "/^\[binaries\]$$$$/s:$$$$:$$(foreach x,$$($(2)_MESON_EXTRA_BINARIES),\n$$(x)):" \
+	sed -e "/^\[binaries\]$$$$/s:$$$$:$$(foreach x,$$($(2)_MESON_EXTRA_BINARIES),\n$$(x)):" \
 	    -e "/^\[properties\]$$$$/s:$$$$:$$(foreach x,$$($(2)_MESON_EXTRA_PROPERTIES),\n$$(x)):" \
-	    package/meson/cross-compilation.conf.in \
+	    $$(call PKG_MESON_CROSSCONFIG_SED,$(2)_CFLAGS,$(2)_CXXFLAGS,$(2)_LDFLAGS) \
 	    > $$($$(PKG)_SRCDIR)/build/cross-compilation.conf
 	PATH=$$(BR_PATH) \
 	CC_FOR_BUILD="$$(HOSTCC)" \
@@ -227,22 +235,12 @@ host-meson-package = $(call inner-meson-package,host-$(pkgname),$(call UPPERCASE
 # own flags if they need to.
 define PKG_MESON_INSTALL_CROSS_CONF
 	mkdir -p $(HOST_DIR)/etc/meson
-	sed -e 's%@TARGET_CROSS@%$(TARGET_CROSS)%g' \
-	    -e 's%@TARGET_ARCH@%$(HOST_MESON_TARGET_CPU_FAMILY)%g' \
-	    -e 's%@TARGET_CPU@%$(HOST_MESON_TARGET_CPU)%g' \
-	    -e 's%@TARGET_ENDIAN@%$(HOST_MESON_TARGET_ENDIAN)%g' \
-	    -e "s%@TARGET_CFLAGS@%$(call make-sq-comma-list,$(TARGET_CFLAGS))@PKG_TARGET_CFLAGS@%g" \
-	    -e "s%@TARGET_LDFLAGS@%$(call make-sq-comma-list,$(TARGET_LDFLAGS))@PKG_TARGET_CFLAGS@%g" \
-	    -e "s%@TARGET_CXXFLAGS@%$(call make-sq-comma-list,$(TARGET_CXXFLAGS))@PKG_TARGET_CFLAGS@%g" \
-	    -e 's%@HOST_DIR@%$(HOST_DIR)%g' \
-	    -e 's%@STAGING_DIR@%$(STAGING_DIR)%g' \
-	    -e 's%@STATIC@%$(if $(BR2_STATIC_LIBS),true,false)%g' \
-	    $(HOST_MESON_PKGDIR)/cross-compilation.conf.in \
+	sed -e "s%@TARGET_CFLAGS@%$(call make-sq-comma-list,$(TARGET_CFLAGS))@PKG_TARGET_CFLAGS@%g" \
+	    -e "s%@TARGET_LDFLAGS@%$(call make-sq-comma-list,$(TARGET_LDFLAGS))@PKG_TARGET_LDFLAGS@%g" \
+	    -e "s%@TARGET_CXXFLAGS@%$(call make-sq-comma-list,$(TARGET_CXXFLAGS))@PKG_TARGET_CXXFLAGS@%g" \
+	    $(call PKG_MESON_CROSSCONFIG_SED) \
 	    > $(HOST_DIR)/etc/meson/cross-compilation.conf.in
-	sed -e 's%@PKG_TARGET_CFLAGS@%%g' \
-	    -e 's%@PKG_TARGET_LDFLAGS@%%g' \
-	    -e 's%@PKG_TARGET_CXXFLAGS@%%g' \
-	    $(HOST_DIR)/etc/meson/cross-compilation.conf.in \
+	sed $(call PKG_MESON_CROSSCONFIG_SED,TARGET_CFLAGS,TARGET_CXXFLAGS,TARGET_LDFLAGS) \
 	    > $(HOST_DIR)/etc/meson/cross-compilation.conf
 endef
 

package/meson/cross-compilation.conf.in → support/misc/cross-compilation.conf.in

@@ -4,11 +4,11 @@
 # - Buildroot's 'target' is Meson's 'host'
 
 [binaries]
-c = '@TARGET_CROSS@gcc'
-cpp = '@TARGET_CROSS@g++'
-ar = '@TARGET_CROSS@ar'
-strip = '@TARGET_CROSS@strip'
-pkgconfig = '@HOST_DIR@/bin/pkgconf'
+c = '@TARGET_CC@'
+cpp = '@TARGET_CXX@'
+ar = '@TARGET_AR@'
+strip = '@TARGET_STRIP@'
+pkgconfig = '@PKGCONF_HOST_BINARY@'
 g-ir-compiler = '@STAGING_DIR@/usr/bin/g-ir-compiler'
 g-ir-scanner = '@STAGING_DIR@/usr/bin/g-ir-scanner'