diff --git a/local/recipes/dev/gcc-native/recipe.toml b/local/recipes/dev/gcc-native/recipe.toml
index b0f46cb8db..0a58d035ca 100644
--- a/local/recipes/dev/gcc-native/recipe.toml
+++ b/local/recipes/dev/gcc-native/recipe.toml
@@ -50,6 +50,14 @@ DYNAMIC_INIT
 #     gcc/config/i386/i386.h:1722: error: unknown type name 'bool'
 # Drop the pin for this recipe so the compiler builds at the standard its own
 # sources are written in.
+# GCC's own include/ must precede the sysroot. libiberty compiles getopt1.c
+# against GCC's include/getopt.h, which declares the GNU-internal
+# _getopt_internal; relibc ships a getopt.h that does not, and it otherwise
+# shadows GCC's:
+#     getopt1.c:71: error: implicit declaration of function '_getopt_internal'
+# Same shape as the cpuid.h shadowing in recipes/dev/gcc13.
+export CPPFLAGS="-I${COOKBOOK_SOURCE}/include ${CPPFLAGS}"
+
 export CFLAGS="${CFLAGS//-std=gnu17/}"
 export CXXFLAGS="${CXXFLAGS//-std=gnu17/}"