diff --git a/package/ecryptfs-utils/Config.in b/package/ecryptfs-utils/Config.in
index 0d912c7af..16c0d696a 100644
--- a/package/ecryptfs-utils/Config.in
+++ b/package/ecryptfs-utils/Config.in
@@ -14,6 +14,7 @@ config BR2_PACKAGE_ECRYPTFS_UTILS
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libnss -> libnspr
 	depends on BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT # libnss -> libnspr
 	depends on !BR2_MIPS_NABI32 # libnss
+	depends on !BR2_PREFER_STATIC_LIB # libnss
 	help
 	  eCryptfs is a POSIX-compliant enterprise cryptographic
 	  filesystem for Linux. It is stacked on top of any other
@@ -29,8 +30,9 @@ config BR2_PACKAGE_ECRYPTFS_UTILS
 
 	  http://ecryptfs.org
 
-comment "ecryptfs-utils needs a toolchain w/ largefile, threads, wchar"
+comment "ecryptfs-utils needs a toolchain w/ largefile, threads, wchar, dynamic library"
 	depends on !BR2_avr32 && !BR2_microblaze
 	depends on BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT
 	depends on BR2_USE_MMU
-	depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR
+	depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR || \
+		BR2_PREFER_STATIC_LIB
diff --git a/package/libnss/Config.in b/package/libnss/Config.in
index 690f928e6..4e8792ca5 100644
--- a/package/libnss/Config.in
+++ b/package/libnss/Config.in
@@ -6,6 +6,7 @@ config BR2_PACKAGE_LIBNSS
 	depends on BR2_LARGEFILE
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libnspr
 	depends on BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT # libnspr
+	depends on !BR2_PREFER_STATIC_LIB
 	help
 	  Network Security Services (NSS) is a set of libraries designed
 	  to support development of security-enabled client and server
@@ -15,6 +16,7 @@ config BR2_PACKAGE_LIBNSS
 
 	  http://www.mozilla.org/projects/security/pki/nss/
 
-comment "libnss needs a toolchain w/ largefile, threads"
+comment "libnss needs a toolchain w/ largefile, threads, dynamic library"
 	depends on BR2_PACKAGE_LIBNSPR_ARCH_SUPPORT
-	depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_LARGEFILE || !BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_PREFER_STATIC_LIB