eigen: add an option to install unsupported modules

Signed-off-by: Davide Viti <d.viti@infosolution.it>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/eigen/Config.in

@@ -13,5 +13,13 @@ config BR2_PACKAGE_EIGEN
 
 	  http://eigen.tuxfamily.org/
 
+if BR2_PACKAGE_EIGEN
+
+config BR2_PACKAGE_EIGEN_UNSUPPORTED_MODULES
+	bool "unsupported modules"
+	help
+	  Install eigen unsupported modules
+endif
+
 comment "eigen needs a toolchain w/ C++"
 	depends on !BR2_INSTALL_LIBSTDCPP

package/eigen/eigen.mk

@@ -14,12 +14,20 @@ EIGEN_INSTALL_STAGING = YES
 EIGEN_INSTALL_TARGET = NO
 EIGEN_DEST_DIR = $(STAGING_DIR)/usr/include/eigen3
 
+ifeq ($(BR2_PACKAGE_EIGEN_UNSUPPORTED_MODULES),y)
+define EIGEN_INSTALL_UNSUPPORTED_MODULES_CMDS
+	mkdir -p $(EIGEN_DEST_DIR)/unsupported
+	cp -a $(@D)/unsupported/Eigen $(EIGEN_DEST_DIR)/unsupported
+endef
+endif
+
 # This package only consists of headers that need to be
 # copied over to the sysroot for compile time use
 define EIGEN_INSTALL_STAGING_CMDS
 	$(RM) -r $(EIGEN_DEST_DIR)
 	mkdir -p $(EIGEN_DEST_DIR)
 	cp -a $(@D)/Eigen $(EIGEN_DEST_DIR)
+	$(EIGEN_INSTALL_UNSUPPORTED_MODULES_CMDS)
 endef
 
 $(eval $(generic-package))