diff --git a/build.vars b/build.vars
index bdeecdc..d44354a 100644
--- a/build.vars
+++ b/build.vars
@@ -237,6 +237,7 @@ PKG_LVL3_MAKEFLAGS_INSTALL="DESTDIR=${PREFIX_NATIVE}";
 : ${PKG_LIBFFI_SHA256SUM:=d06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37};
 : ${PKG_LIBFFI_URL=ftp://sourceware.org/pub/libffi/libffi-${PKG_LIBFFI_VERSION}.tar.gz};
 : ${PKG_LIBFFI_CFLAGS_CONFIGURE_EXTRA:=-D_WIN64};
+: ${PKG_LIBFFI_CONFIGURE_ARGS_EXTRA:=--program-prefix=};
 : ${PKG_LIBNBCOMPAT_URL:=http://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/pkgtools/libnbcompat/files};
 : ${PKG_LIBNBCOMPAT_URL_TYPE:=wget_recursive};
 : ${PKG_LIBNBCOMPAT_BUILD_DIR:=libnbcompat};
@@ -453,6 +454,7 @@ PKG_LVL3_MAKEFLAGS_INSTALL="DESTDIR=${PREFIX_NATIVE}";
 : ${PKG_LYNX_URL:=ftp://invisible-island.net/lynx/tarballs/lynx${PKG_LYNX_VERSION}.tar.bz2};
 : ${PKG_LYNX_CFLAGS_CONFIGURE_EXTRA:="-I${PREFIX_NATIVE}/include -I${PREFIX_NATIVE}/include/ncursesw"};
 : ${PKG_LYNX_SUBDIR:=lynx2-8-8};
+: ${PKG_LYNX_CONFIGURE_ARGS_EXTRA:=--program-prefix=};
 : ${PKG_MAN_DB_VERSION:=2.7.5};
 : ${PKG_MAN_DB_SHA256SUM:=5c4ddd0d67abbbcb408dc5804906f62210f7c863ef791198faca3d75681cca14};
 : ${PKG_MAN_DB_URL:=http://download.savannah.gnu.org/releases/man-db/man-db-${PKG_MAN_DB_VERSION}.tar.xz};