boost: fix raw kconfig syntax

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

libs/boost/Makefile

@@ -13,7 +13,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=boost
 PKG_VERSION:=1.70.0
 PKG_SOURCE_VERSION:=1_70_0
-PKG_RELEASE:=6
+PKG_RELEASE:=7
 
 PKG_SOURCE:=$(PKG_NAME)_$(PKG_SOURCE_VERSION).tar.bz2
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)/$(PKG_NAME)/$(PKG_VERSION) https://dl.bintray.com/boostorg/release/$(PKG_VERSION)/source/
@@ -199,11 +199,11 @@ define Package/boost/config
 				bool "Shared"
 
 			config boost-runtime-static
-				depends on @(!boost-shared-libs&&!boost-static-and-shared-libs)
+				depends on !boost-shared-libs&&!boost-static-and-shared-libs
 				bool "Static"
 
 			config boost-runtime-static-and-shared
-				depends on @(boost-use-name-tags&&!boost-shared-libs&&!boost-static-and-shared-libs)
+				depends on boost-use-name-tags&&!boost-shared-libs&&!boost-static-and-shared-libs
 				bool "Both"
 		endchoice
 
@@ -240,14 +240,14 @@ define Package/boost/config
 			default n
 
 		config boost-single-thread
-			depends on @boost-use-name-tags
+			depends on boost-use-name-tags
 			bool "Single thread Support."
 			help
 				Compile Boost libraries in single-thread mode.
 			default n
 
 		config boost-build-type-complete
-			depends on @boost-use-name-tags
+			depends on boost-use-name-tags
 			bool "Complete Boost Build."
 			help
 				Builds both release and debug libs. It will take much longer to compile.
@@ -277,7 +277,7 @@ define Package/boost/config
 			select PACKAGE_boost-test
 
 		config boost-coroutine2
-			depends on !@GCC_VERSION_4_8
+			depends on !GCC_VERSION_4_8
 			bool "Boost couroutine2 support."
 			select PACKAGE_boost-coroutine
 			default n