diff --git a/package/libgeos/Config.in b/package/libgeos/Config.in
index 8411627d43..2a27c6f2a4 100644
--- a/package/libgeos/Config.in
+++ b/package/libgeos/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_LIBGEOS
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
 	depends on !BR2_TOOLCHAIN_HAS_BINUTILS_BUG_27597
 	help
 	  GEOS (Geometry Engine - Open Source) is a C++ port of the
@@ -13,7 +14,8 @@ config BR2_PACKAGE_LIBGEOS
 
 	  https://trac.osgeo.org/geos
 
-comment "libgeos needs a toolchain w/ C++, wchar, threads not binutils bug 27597"
+comment "libgeos needs a toolchain w/ C++, wchar, gcc >= 4.9, threads not binutils bug 27597"
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR || \
 		   !BR2_TOOLCHAIN_HAS_THREADS || \
+		   !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
 		   BR2_TOOLCHAIN_HAS_BINUTILS_BUG_27597
diff --git a/package/postgis/Config.in b/package/postgis/Config.in
index 405c5c723a..7d42390677 100644
--- a/package/postgis/Config.in
+++ b/package/postgis/Config.in
@@ -2,7 +2,7 @@ config BR2_PACKAGE_POSTGIS
 	bool "postgis"
 	depends on BR2_PACKAGE_POSTGRESQL_FULL
 	depends on BR2_INSTALL_LIBSTDCPP # libgeos, proj
-	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 # C++11, proj
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libgeos
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libgeos, proj
 	depends on BR2_USE_WCHAR # libgeos, proj
 	depends on !BR2_TOOLCHAIN_HAS_BINUTILS_BUG_27597 # libgeos
@@ -18,7 +18,7 @@ config BR2_PACKAGE_POSTGIS
 
 	  https://postgis.net/
 
-comment "postgis needs a toolchain w/ C++, threads, wchar, gcc >= 4.7, not binutils bug 27597"
-	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || \
+comment "postgis needs a toolchain w/ C++, threads, wchar, gcc >= 4.9, not binutils bug 27597"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
 		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR || \
 		BR2_TOOLCHAIN_HAS_BINUTILS_BUG_27597