diff --git a/package/efibootmgr/Config.in b/package/efibootmgr/Config.in
index 98ff71c996..5800e6c143 100644
--- a/package/efibootmgr/Config.in
+++ b/package/efibootmgr/Config.in
@@ -2,6 +2,7 @@ config BR2_PACKAGE_EFIBOOTMGR
 	bool "efibootmgr"
 	depends on BR2_PACKAGE_EFIVAR_ARCH_SUPPORTS # efivar
 	depends on !BR2_STATIC_LIBS # efivar
+	depends on BR2_TOOLCHAIN_HAS_THREADS # efivar
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 # efivar
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # efivar
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
@@ -15,9 +16,9 @@ config BR2_PACKAGE_EFIBOOTMGR
 
 	  https://github.com/rhboot/efibootmgr
 
-comment "efibootmgr needs a toolchain w/ dynamic library, headers >= 3.12, gcc >= 4.9"
+comment "efibootmgr needs a toolchain w/ dynamic library, threads, headers >= 3.12, gcc >= 4.9"
 	depends on BR2_PACKAGE_EFIVAR_ARCH_SUPPORTS
-	depends on BR2_STATIC_LIBS || \
+	depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
diff --git a/package/efivar/Config.in b/package/efivar/Config.in
index 74f2bb5abb..d4402dbcf7 100644
--- a/package/efivar/Config.in
+++ b/package/efivar/Config.in
@@ -9,6 +9,7 @@ config BR2_PACKAGE_EFIVAR
 	depends on BR2_PACKAGE_EFIVAR_ARCH_SUPPORTS
 	depends on !BR2_STATIC_LIBS # dlfcn.h
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 # linux/nvme.h
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	# linux/nvme.h has been renamed to linux/nvme_ioctl.h since 4.4,
 	# and the efivar source handles that situation. However, some
 	# Sourcery CodeBench toolchains use 4.4 kernel headers but they
@@ -22,9 +23,9 @@ config BR2_PACKAGE_EFIVAR
 
 	  https://github.com/rhboot/efivar
 
-comment "efivar needs a toolchain w/ dynamic library, headers >= 3.12, gcc >= 4.9"
+comment "efivar needs a toolchain w/ dynamic library, threads, headers >= 3.12, gcc >= 4.9"
 	depends on BR2_PACKAGE_EFIVAR_ARCH_SUPPORTS
-	depends on BR2_STATIC_LIBS || \
+	depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS