diff --git a/package/bdwgc/Config.in b/package/bdwgc/Config.in
index 9aa7c7dff5..215c54d7e3 100644
--- a/package/bdwgc/Config.in
+++ b/package/bdwgc/Config.in
@@ -1,5 +1,12 @@
+config BR2_PACKAGE_BDWGC_ARCH_SUPPORTS
+	default y
+	depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_i386 \
+		|| BR2_mips || BR2_mipsel || BR2_powerpc || BR2_sh \
+		|| BR2_sparc || BR2_x86_64
+
 config BR2_PACKAGE_BDWGC
 	bool "bdwgc"
+	depends on BR2_PACKAGE_BDWGC_ARCH_SUPPORTS
 	depends on BR2_PACKAGE_LIBATOMIC_ARCH_SUPPORTS
 	select BR2_PACKAGE_LIBATOMIC_OPS
 	help
diff --git a/package/bdwgc/bdwgc.mk b/package/bdwgc/bdwgc.mk
index 3e6de1ac9d..b408947359 100644
--- a/package/bdwgc/bdwgc.mk
+++ b/package/bdwgc/bdwgc.mk
@@ -4,6 +4,8 @@
 #
 ################################################################################
 
+# When bumping the version number, check if the list of supported architectures
+# is still valid; see Config.log.
 BDWGC_VERSION = 7.2f
 BDWGC_SOURCE = gc-$(BDWGC_VERSION).tar.gz
 BDWGC_SITE = http://www.hboehm.info/gc/gc_source
diff --git a/package/guile/Config.in b/package/guile/Config.in
index 009dbdf27f..8f86e9f20d 100644
--- a/package/guile/Config.in
+++ b/package/guile/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_GUILE
 	bool "guile"
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_PACKAGE_BDWGC_ARCH_SUPPORTS # bdwgc
 	depends on BR2_PACKAGE_LIBATOMIC_ARCH_SUPPORTS # bdwgc
 	depends on BR2_USE_WCHAR # libunistring
 	select BR2_PACKAGE_LIBUNISTRING