diff --git a/vars/build.vars b/vars/build.vars
index 430b172..0007fe6 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -313,6 +313,7 @@ LIB_PACKAGES_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_GZIP_CONFIGURE_ARGS:=--host=${TARGET} --prefix= --target=${TARGET}};
 : ${PKG_GZIP_MAKEFLAGS_BUILD_EXTRA:=OBJA= prefix=${PREFIX_NATIVE}};
 : ${PKG_GZIP_MAKEFLAGS_INSTALL_EXTRA:=OBJA= prefix=${PREFIX_NATIVE}};
+: ${PKG_GZIP_PREFIX_EXTRA:=${PREFIX_MINIPIX}};
 : ${PKG_LIBARCHIVE_SHA256SUM:=691c194ee132d1f0f7a42541f091db811bc2e56f7107e9121be2bc8c04f1060f};
 : ${PKG_LIBARCHIVE_VERSION:=3.2.2};
 : ${PKG_LIBARCHIVE_URL:=http://www.libarchive.org/downloads/libarchive-${PKG_LIBARCHIVE_VERSION}.tar.gz};
@@ -394,6 +395,7 @@ LIB_PACKAGES_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_XZ_SHA256SUM:=73df4d5d34f0468bd57d09f2d8af363e95ed6cc3a4a86129d2f2c366259902a2};
 : ${PKG_XZ_VERSION:=5.2.2};
 : ${PKG_XZ_URL:=https://github.com/xz-mirror/xz/releases/download/v${PKG_XZ_VERSION}/xz-${PKG_XZ_VERSION}.tar.gz};
+: ${PKG_XZ_PREFIX_EXTRA:=${PREFIX_MINIPIX}};
 
 : ${PKG_INPUTPROTO_SHA256SUM:=893a6af55733262058a27b38eeb1edc733669f01d404e8581b167f03c03ef31d};
 : ${PKG_INPUTPROTO_VERSION:=2.3.2};
@@ -735,6 +737,7 @@ LEAF_PACKAGES_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_TAR_SHA256SUM:=cae466e6e58c7292355e7080248f244db3a4cf755f33f4fa25ca7f9a7ed09af0};
 : ${PKG_TAR_VERSION:=1.29};
 : ${PKG_TAR_URL:=https://ftp.gnu.org/gnu/tar/tar-${PKG_TAR_VERSION}.tar.gz};
+: ${PKG_TAR_PREFIX_EXTRA:=${PREFIX_MINIPIX}};
 : ${PKG_TCSH_SHA256SUM:=b89de7064ab54dac454a266cfe5d8bf66940cb5ed048d0c30674ea62e7ecef9d};
 : ${PKG_TCSH_VERSION:=6.20.00};
 : ${PKG_TCSH_URL:=http://ftp.funet.fi/pub/mirrors/ftp.astron.com/pub/tcsh/tcsh-${PKG_TCSH_VERSION}.tar.gz};