Added support for configuration of boost binary names layout

[Peter: fix trailing whitescape / too long lines]
Signed-off-by: Uwe Kindler <uwe_kindler@web.de>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/boost/Config.in

@@ -16,6 +16,40 @@ config BR2_PACKAGE_BOOST
 
 if BR2_PACKAGE_BOOST
 
+choice
+	prompt "Layout"
+	default BR2_PACKAGE_BOOST_LAYOUT_SYSTEM
+	help
+	  Selects the layout of Boost binary names
+
+config BR2_PACKAGE_BOOST_LAYOUT_SYSTEM
+	bool "system"
+	help
+	  Boost binary names do not include the Boost version number
+	  or the name and version number of the compiler.
+
+config BR2_PACKAGE_BOOST_LAYOUT_TAGGED
+	bool "tagged"
+	help
+	  Boost binary names include the encoded build properties such
+	  as variant and threading, but do not include compiler name
+	  and version, or Boost version. This option is useful if you
+	  build several variants of Boost, using the same compiler.
+
+config BR2_PACKAGE_BOOST_LAYOUT_VERSIONED
+	bool "versioned"
+	help
+	  Boost binary names include the Boost version number, name
+	  and version of the compiler and encoded build properties.
+
+endchoice
+
+config BR2_PACKAGE_BOOST_LAYOUT
+	string
+	default "system" if BR2_PACKAGE_BOOST_LAYOUT_SYSTEM
+	default "tagged" if BR2_PACKAGE_BOOST_LAYOUT_TAGGED
+	default "versioned" if BR2_PACKAGE_BOOST_LAYOUT_VERSIONED
+
 config BR2_PACKAGE_BOOST_CHRONO
 	bool "boost-chrono"
 

package/boost/boost.mk

@@ -81,6 +81,7 @@ endif
 
 BOOST_WITHOUT_FLAGS_COMMASEPERATED += $(subst $(space),$(comma),$(strip $(BOOST_WITHOUT_FLAGS)))
 BOOST_FLAGS += $(if $(BOOST_WITHOUT_FLAGS_COMMASEPERATED), --without-libraries=$(BOOST_WITHOUT_FLAGS_COMMASEPERATED))
+BOOST_LAYOUT = $(call qstrip, $(BR2_PACKAGE_BOOST_LAYOUT))
 
 define BOOST_CONFIGURE_CMDS
 	(cd $(@D) && ./bootstrap.sh $(BOOST_FLAGS))
@@ -99,7 +100,7 @@ define BOOST_INSTALL_TARGET_CMDS
 	--user-config=$(@D)/user-config.jam \
 	$(BOOST_OPT) \
 	--prefix=$(TARGET_DIR)/usr \
-	--layout=system install )
+	--layout=$(BOOST_LAYOUT) install )
 endef
 
 define HOST_BOOST_BUILD_CMDS
@@ -114,7 +115,7 @@ define HOST_BOOST_INSTALL_CMDS
 	--user-config=$(@D)/user-config.jam \
 	$(HOST_BOOST_OPT) \
 	--prefix=$(HOST_DIR)/usr \
-	--layout=system install )
+	--layout=$(BOOST_LAYOUT) install )
 endef
 
 define BOOST_INSTALL_STAGING_CMDS
@@ -122,7 +123,7 @@ define BOOST_INSTALL_STAGING_CMDS
 	--user-config=$(@D)/user-config.jam \
 	$(BOOST_OPT) \
 	--prefix=$(STAGING_DIR)/usr \
-	--layout=system install)
+	--layout=$(BOOST_LAYOUT) install)
 endef
 
 $(eval $(generic-package))