package/ruby: needs gcc and host gcc >= 4.9

ruby needs gcc and host gcc >= 4.9 since commit
5f1c6758a561134e30fe9fb7fae55e5d6e97d01a and the addition of AC_PROG_CC:

In file included from vm_core.h:85:0,
                 from iseq.h:14,
                 from mini_builtin.c:3,
                 from miniinit.c:51:
thread_pthread.h:108:43: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'struct'
     RUBY_EXTERN RB_THREAD_LOCAL_SPECIFIER struct rb_execution_context_struct *ruby_current_ec;
                                           ^

Fixes:
 - http://autobuild.buildroot.org/results/f196f8bc68d1b4c20bddced89478598a3fcd3dea
 - http://autobuild.buildroot.org/results/81bdac585600877d3fa8d9478b7f160dbd1537a9

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5webkit/Config.in

@@ -3,7 +3,7 @@ config BR2_PACKAGE_QT5WEBKIT
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_PACKAGE_QT5_JSCORE_AVAILABLE
 	depends on BR2_INSTALL_LIBSTDCPP # leveldb
-	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu
+	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu, host-ruby
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # icu
 	depends on BR2_TOOLCHAIN_HAS_THREADS # leveldb
 	depends on !BR2_BINFMT_FLAT # icu

package/ruby/Config.in

@@ -3,11 +3,14 @@ config BR2_PACKAGE_RUBY
 	depends on BR2_USE_WCHAR
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on !BR2_STATIC_LIBS
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	depends on BR2_HOST_GCC_AT_LEAST_4_9
 	help
 	  Object Oriented Scripting Language.
 
 	  http://www.ruby-lang.org/
 
-comment "ruby needs a toolchain w/ wchar, threads, dynamic library"
+comment "ruby needs a toolchain w/ wchar, threads, dynamic library, gcc >= 4.9, host gcc >= 4.9"
 	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
-		BR2_STATIC_LIBS
+		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
+		!BR2_HOST_GCC_AT_LEAST_4_9

package/webkitgtk/Config.in

@@ -25,7 +25,7 @@ config BR2_PACKAGE_WEBKITGTK
 	bool "webkitgtk"
 	depends on !BR2_STATIC_LIBS # wayland
 	depends on !BR2_BINFMT_FLAT # icu
-	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu
+	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu, host-ruby
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS # wayland, icu, libsoup
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7

package/wpewebkit/Config.in

@@ -30,7 +30,7 @@ config BR2_PACKAGE_WPEWEBKIT
 	bool "wpewebkit"
 	depends on !BR2_STATIC_LIBS # wayland
 	depends on !BR2_BINFMT_FLAT # icu
-	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu
+	depends on BR2_HOST_GCC_AT_LEAST_4_9 # icu, host-ruby
 	depends on BR2_INSTALL_LIBSTDCPP # harfbuzz, icu
 	depends on BR2_TOOLCHAIN_HAS_THREADS # wayland, icu, libsoup
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7