diff --git a/vars/build.vars b/vars/build.vars
index a3a40de..5f7a4b3 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -610,9 +610,9 @@ NATIVE_TOOLCHAIN_PREFIX="${PREFIX_NATIVE}";
 
 : ${PKG_GCC_FULL_VERSION:=4.6.4};
 : ${PKG_GCC_FULL_BASE_DIR:=${BUILD_WORKDIR}/gcc-native-${DEFAULT_TARGET}};
+: ${PKG_GCC_FULL_CFLAGS_CONFIGURE:="-I${PREFIX}/include"};
 : ${PKG_GCC_FULL_GITROOT:=${DEFAULT_GITROOT}};
 
-
 #
 # Build target native_toolchain_mingw32
 #
@@ -628,6 +628,7 @@ NATIVE_TOOLCHAIN_MINGW32_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_BINUTILS_MINGW32_LIBTOOL:=slibtool-static};
 : ${PKG_GCC_STAGE1_NATIVE_MINGW32_VERSION:=4.6.4};
 : ${PKG_GCC_STAGE1_NATIVE_MINGW32_BASE_DIR:=${BUILD_WORKDIR}/gcc-native-x86_64-w64-mingw32};
+: ${PKG_GCC_STAGE1_NATIVE_MINGW32_CFLAGS_CONFIGURE:="-I${PREFIX}/include"};
 : ${PKG_GCC_STAGE1_NATIVE_MINGW32_GITROOT:=${DEFAULT_GITROOT}};
 : ${PKG_GCC_STAGE1_NATIVE_MINGW32_TARGET:=x86_64-w64-mingw32};