package/boost: add boot-type_erasure support

Until now this library wasn't handled by the Buildroot packaging,
so add a new config option to disable it when requested.

Also disable boost-type_erasure for the host variant to keep it as
minimal as possible.

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/boost/Config.in

@@ -154,6 +154,9 @@ config BR2_PACKAGE_BOOST_THREAD
 config BR2_PACKAGE_BOOST_TIMER
 	bool "boost-timer"
 
+config BR2_PACKAGE_BOOST_TYPE_ERASURE
+	bool "boost-type_erasure"
+
 config BR2_PACKAGE_BOOST_WAVE
 	bool "boost-wave"
 

package/boost/boost.mk

@@ -18,7 +18,8 @@ HOST_BOOST_FLAGS = --without-icu \
 	--without-libraries=$(subst $(space),$(comma),atomic chrono context \
 	coroutine coroutine2 date_time exception filesystem graph \
 	graph_parallel iostreams locale log math mpi program_options python \
-	random regex serialization signals system test thread timer wave)
+	random regex serialization signals system test thread timer type_erasure \
+	wave)
 
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_ATOMIC),,atomic)
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_CHRONO),,chrono)
@@ -47,6 +48,7 @@ BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_SYSTEM),,system)
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_TEST),,test)
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_THREAD),,thread)
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_TIMER),,timer)
+BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_TYPE_ERASURE),,type_erasure)
 BOOST_WITHOUT_FLAGS += $(if $(BR2_PACKAGE_BOOST_WAVE),,wave)
 
 BOOST_TARGET_CXXFLAGS = $(TARGET_CXXFLAGS)