package/gtkmm3: needs host gcc >= 4.8

Due to the harfbuzz bump to version 2.5.2 we need host gcc >= 4.8.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/gtkmm3/Config.in

@@ -1,8 +1,9 @@
-comment "gtkmm3 needs libgtk3 and a toolchain w/ C++, wchar, threads, gcc >= 4.9"
+comment "gtkmm3 needs libgtk3 and a toolchain w/ C++, wchar, threads, gcc >= 4.9, host gcc >= 4.8"
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_USE_WCHAR \
 		|| !BR2_INSTALL_LIBSTDCPP || !BR2_PACKAGE_LIBGTK3 \
+		|| !BR2_HOST_GCC_AT_LEAST_4_8 \
 		|| !BR2_TOOLCHAIN_HAS_THREADS
 
 config BR2_PACKAGE_GTKMM3
@@ -15,6 +16,7 @@ config BR2_PACKAGE_GTKMM3
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pangomm, libgtk3 -> pango -> harfbuzz
 	depends on BR2_INSTALL_LIBSTDCPP # glibmm, libpangomm -> glibmm/pango
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++11
+	depends on BR2_HOST_GCC_AT_LEAST_4_8 # libgtk3 -> pango -> harfbuzz
 	depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/libgtk3 -> libglib2
 	depends on BR2_USE_MMU # *mm/libgtk3 -> libglib2
 	depends on BR2_USE_WCHAR # *mm/libgtk3 -> libglib2